doc: emphasise that BDR2 support is for BDR2 only

Barman will usually use one replication slot, but that's generally
preferable to multiple slots.

.gitignore

@@ -42,12 +42,11 @@ lib*.pc
 /regression.diffs
 /regression.out
 
+/doc/Makefile
+
 # other
 /.lineno
 *.dSYM
-*.orig
-*.rej
-
 # generated binaries
 repmgr
 repmgrd

CONTRIBUTING.md

@@ -2,7 +2,7 @@ License and Contributions
 =========================
 
 `repmgr` is licensed under the GPL v3.  All of its code and documentation is
-Copyright 2010-2019, 2ndQuadrant Limited.  See the files COPYRIGHT and LICENSE for
+Copyright 2010-2018, 2ndQuadrant Limited.  See the files COPYRIGHT and LICENSE for
 details.
 
 The development of repmgr has primarily been sponsored by 2ndQuadrant customers.
@@ -24,7 +24,7 @@ Code style
 Code in repmgr should be formatted to the same standards as the main PostgreSQL
 project. For more details see:
 
-    https://www.postgresql.org/docs/current/source-format.html
+    https://www.postgresql.org/docs/current/static/source-format.html
 
 Contributors should reformat their code similarly before submitting code to
 the project, in order to minimize merge conflicts with other work.

COPYRIGHT

@@ -1,4 +1,4 @@
-Copyright (c) 2010-2019, 2ndQuadrant Limited
+Copyright (c) 2010-2018, 2ndQuadrant Limited
 All rights reserved.
 
 This program is free software: you can redistribute it and/or modify

HISTORY

@@ -1,65 +1,3 @@
-4.4     2019-??-??
-        repmgr: improve "daemon status" output (Ian)
-        repmgr: add "--siblings-follow" option to "standby promote" (Ian)
-        repmgr: add "--repmgrd-force-unpause" option to "standby switchover" (Ian)
-        repmgr: fix data directory permissions issue in barman mode where
-          an existing directory is being overwritten (Ian)
-        repmgr: improve "--dry-run" behaviour for "standby promote" and
-          "standby switchover" (Ian)
-        repmgr: when running "standby clone" with the "--upstream-conninfo" option
-          ensure that "application_name" is set correctly in "primary_conninfo" (Ian)
-        repmgr: ensure "--dry-run" together with --force when running "standby clone"
-          in barman mode does not modify an existing data directory (Ian)
-        repmgr: improve "--dry-run" output when running "standby clone" in
-          basebackup mode (Ian)
-        repmgr: improve upstream walsender checks when running "standby clone" (Ian)
-        repmgr: display node timeline ID in "cluster show" output (Ian)
-        repmgr: in "cluster show" and "daemon status", show upstream node name
-          as reported by each individual node (Ian)
-        repmgr: in "cluster show" and "daemon status", check if a node is attached
-          to its advertised upstream node
-        repmgr: use --compact rather than --terse option in "cluster event" (Ian)
-        repmgr: prevent a standby being cloned from a witness server (Ian)
-        repmgr: prevent a witness server being registered on the cluster primary (John)
-        repmgr: ensure BDR2-specific functionality cannot be used on
-          BDR3 and later (Ian)
-        repmgr: canonicalize the data directory path (Ian)
-        repmgrd: monitor standbys attached to primary (Ian)
-        repmgrd: add "primary visibility consensus" functionality (Ian)
-        repmgrd: fix memory leak which occurs while the monitored PostgreSQL
-           node is not running (Ian)
-        general: documentation converted to DocBook XML format (Ian)
-
-4.3     2019-04-02
-        repmgr: add "daemon (start|stop)" command; GitHub #528 (Ian)
-        repmgr: add --version-number command line option (Ian)
-        repmgr: add --compact option to "cluster show"; GitHub #521 (Ian)
-        repmgr: cluster show - differentiate between unreachable nodes
-          and nodes which are running but rejecting connections (Ian)
-        repmgr: add --dry-run option to "standby promote"; GitHub #522 (Ian)
-        repmgr: add "node check --data-directory-config"; GitHub #523 (Ian)
-        repmgr: prevent potential race condition in "standby switchover"
-          when checking received WAL location; GitHub #518 (Ian)
-        repmgr: ensure "standby switchover" verifies repmgr can read the
-          data directory on the demotion candidate; GitHub #523 (Ian)
-        repmgr: ensure "standby switchover" verifies replication connection
-          exists; GitHub #519 (Ian)
-        repmgr: add sanity check for correct extension version (Ian)
-        repmgr: ensure "witness register --dry-run" does not attempt to read node
-          tables if repmgr extension not installed; GitHub #513 (Ian)
-        repmgr: ensure "standby register" fails when --upstream-node-id is the
-          same as the local node ID (Ian)
-        repmgrd: check binary and extension major versions match; GitHub #515 (Ian)
-        repmgrd: on a cascaded standby, don't fail over if "failover=manual";
-          GitHub #531 (Ian)
-        repmgrd: don't consider nodes where repmgrd is not running as promotion
-          candidates (Ian)
-        repmgrd: add option "connection_check_type" (Ian)
-        repmgrd: improve witness monitoring when primary node not available (Ian)
-		repmgrd: handle situation where a primary has unexpectedly appeared
-		  during failover; GitHub #420 (Ian)
-		general: fix Makefile (John)
-
 4.2     2018-10-24
         repmgr: add parameter "shutdown_check_timeout" for use by "standby switchover";
           GitHub #504 (Ian)

Makefile.in

@@ -15,11 +15,7 @@ DATA = \
   repmgr--4.0--4.1.sql \
   repmgr--4.1.sql \
   repmgr--4.1--4.2.sql \
-  repmgr--4.2.sql \
-  repmgr--4.2--4.3.sql \
-  repmgr--4.3.sql \
-  repmgr--4.3--4.4.sql \
-  repmgr--4.4.sql
+  repmgr--4.2.sql
 
 REGRESS = repmgr_extension
 
@@ -52,8 +48,8 @@ $(info Building against PostgreSQL $(MAJORVERSION))
 REPMGR_CLIENT_OBJS = repmgr-client.o \
 	repmgr-action-primary.o repmgr-action-standby.o repmgr-action-witness.o \
 	repmgr-action-bdr.o repmgr-action-cluster.o repmgr-action-node.o repmgr-action-daemon.o \
-	configfile.o log.o strutil.o controldata.o dirutil.o compat.o dbutils.o sysutils.o
-REPMGRD_OBJS = repmgrd.o repmgrd-physical.o repmgrd-bdr.o configfile.o log.o dbutils.o strutil.o controldata.o compat.o sysutils.o
+	configfile.o log.o strutil.o controldata.o dirutil.o compat.o dbutils.o
+REPMGRD_OBJS = repmgrd.o repmgrd-physical.o repmgrd-bdr.o configfile.o log.o dbutils.o strutil.o controldata.o compat.o
 DATE=$(shell date "+%Y-%m-%d")
 
 repmgr_version.h: repmgr_version.h.in
@@ -77,19 +73,10 @@ Makefile: Makefile.in config.status configure
 Makefile.global: Makefile.global.in config.status configure
 	./config.status $@
 
-doc: repmgr_version.h
-	$(MAKE) -C doc html
+doc:
+	$(MAKE) -C doc all
 
-doc-repmgr.html: repmgr_version.h
-	$(MAKE) -C doc repmgr.html
-
-doc-repmgr-A4.pdf: repmgr_version.h
-	$(MAKE) -C doc repmgr-A4.pdf
-
-doc-repmgr-US.pdf: repmgr_version.h
-	$(MAKE) -C doc repmgr-US.pdf
-
-install-doc: doc
+install-doc:
 	$(MAKE) -C doc install
 
 clean: additional-clean
@@ -97,16 +84,29 @@ clean: additional-clean
 maintainer-clean: additional-maintainer-clean
 
 additional-clean:
-	rm -f *.o
-	$(MAKE) -C doc clean
+	rm -f repmgr-client.o
+	rm -f repmgr-action-primary.o
+	rm -f repmgr-action-standby.o
+	rm -f repmgr-action-witness.o
+	rm -f repmgr-action-bdr.o
+	rm -f repmgr-action-node.o
+	rm -f repmgr-action-cluster.o
+	rm -f repmgr-action-daemon.o
+	rm -f repmgrd.o
+	rm -f repmgrd-physical.o
+	rm -f repmgrd-bdr.o
+	rm -f compat.o
+	rm -f configfile.o
+	rm -f controldata.o
+	rm -f dbutils.o
+	rm -f dirutil.o
+	rm -f log.o
+	rm -f strutil.o
 
-additional-maintainer-clean: clean
-	$(MAKE) -C doc maintainer-clean
+maintainer-additional-clean: clean
+	rm -f configure
 	rm -f config.status config.log
-	rm -f config.h
-	rm -f repmgr_version.h
 	rm -f Makefile
-	rm -f Makefile.global
 	@rm -rf autom4te.cache/
 
 ifeq ($(MAJORVERSION),$(filter $(MAJORVERSION),9.3 9.4))
@@ -121,4 +121,3 @@ installdirs-scripts:
 .PHONY: installdirs-scripts
 endif
 
-.PHONY: doc doc-repmgr.html doc-repmgr-A4.pdf doc-repmgr-US.pdf install-doc

README.md

@@ -27,7 +27,7 @@ Documentation
 
 The main `repmgr` documentation is available here:
 
-> [repmgr documentation](https://repmgr.org/docs/current/index.html)
+> [repmgr 4 documentation](https://repmgr.org/docs/4.2/index.html)
 
 The `README` file for `repmgr` 3.x is available here:
 
@@ -72,7 +72,7 @@ Please report bugs and other issues to:
 
 * https://github.com/2ndQuadrant/repmgr
 
-Further information is available at https://repmgr.org/
+Further information is available at https://www.repmgr.org/
 
 We'd love to hear from you about how you use repmgr. Case studies and
 news are always welcome. Send us an email at info@2ndQuadrant.com, or
@@ -97,7 +97,6 @@ Thanks from the repmgr core team.
 Further reading
 ---------------
 
-* [repmgr documentation](https://repmgr.org/docs/current/index.html)
 * https://blog.2ndquadrant.com/repmgr-3-2-is-here-barman-support-brand-new-high-availability-features/
 * https://blog.2ndquadrant.com/improvements-in-repmgr-3-1-4/
 * https://blog.2ndquadrant.com/managing-useful-clusters-repmgr/

compat.c

@@ -6,7 +6,7 @@
  *    supported PostgreSQL versions. They're unlikely to change but
  *    it would be worth keeping an eye on them for any fixes/improvements.
  *
- * Copyright (c) 2ndQuadrant, 2010-2019
+ * Copyright (c) 2ndQuadrant, 2010-2018
  *
  * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
@@ -98,42 +98,9 @@ appendShellString(PQExpBuffer buf, const char *str)
 
 		if (*p == '\'')
 			appendPQExpBufferStr(buf, "'\"'\"'");
-		else if (*p == '&')
-			appendPQExpBufferStr(buf, "\\&");
 		else
 			appendPQExpBufferChar(buf, *p);
 	}
 
 	appendPQExpBufferChar(buf, '\'');
 }
-
-/*
- * Adapted from: src/fe_utils/string_utils.c
- */
-void
-appendRemoteShellString(PQExpBuffer buf, const char *str)
-{
-	const char *p;
-
-	appendPQExpBufferStr(buf, "\\'");
-
-	for (p = str; *p; p++)
-	{
-		if (*p == '\n' || *p == '\r')
-		{
-			fprintf(stderr,
-					_("shell command argument contains a newline or carriage return: \"%s\"\n"),
-					str);
-			exit(ERR_BAD_CONFIG);
-		}
-
-		if (*p == '\'')
-			appendPQExpBufferStr(buf, "'\"'\"'");
-		else if (*p == '&')
-			appendPQExpBufferStr(buf, "\\&");
-		else
-			appendPQExpBufferChar(buf, *p);
-	}
-
-	appendPQExpBufferStr(buf, "\\'");
-}

compat.h

@@ -1,6 +1,6 @@
 /*
  * compat.h
- * Copyright (c) 2ndQuadrant, 2010-2019
+ * Copyright (c) 2ndQuadrant, 2010-2018
  *
  * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
@@ -27,6 +27,4 @@ extern void appendConnStrVal(PQExpBuffer buf, const char *str);
 
 extern void appendShellString(PQExpBuffer buf, const char *str);
 
-extern void appendRemoteShellString(PQExpBuffer buf, const char *str);
-
 #endif

configfile.c

@@ -1,7 +1,7 @@
 /*
  * config.c - parse repmgr.conf and other configuration-related functionality
  *
- * Copyright (c) 2ndQuadrant, 2010-2019
+ * Copyright (c) 2ndQuadrant, 2010-2018
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -123,9 +123,9 @@ load_config(const char *config_file, bool verbose, bool terse, t_configuration_o
 
 		if (stat(config_file_path, &stat_config) != 0)
 		{
-			log_error(_("provided configuration file \"%s\" not found"),
-					  config_file);
-			log_detail("%s", strerror(errno));
+			log_error(_("provided configuration file \"%s\" not found: %s"),
+					  config_file,
+					  strerror(errno));
 			exit(ERR_BAD_CONFIG);
 		}
 
@@ -335,7 +335,6 @@ _parse_config(t_configuration_options *options, ItemList *error_list, ItemList *
 	 */
 	options->shutdown_check_timeout = DEFAULT_SHUTDOWN_CHECK_TIMEOUT;
 	options->standby_reconnect_timeout = DEFAULT_STANDBY_RECONNECT_TIMEOUT;
-	options->wal_receive_check_timeout = DEFAULT_WAL_RECEIVE_CHECK_TIMEOUT;
 
 	/*-----------------
 	 * repmgrd settings
@@ -344,7 +343,7 @@ _parse_config(t_configuration_options *options, ItemList *error_list, ItemList *
 	options->failover = FAILOVER_MANUAL;
 	options->priority = DEFAULT_PRIORITY;
 	memset(options->location, 0, sizeof(options->location));
-	strncpy(options->location, DEFAULT_LOCATION, sizeof(options->location));
+	strncpy(options->location, DEFAULT_LOCATION, MAXLEN);
 	memset(options->promote_command, 0, sizeof(options->promote_command));
 	memset(options->follow_command, 0, sizeof(options->follow_command));
 	options->monitor_interval_secs = DEFAULT_MONITORING_INTERVAL;
@@ -358,19 +357,6 @@ _parse_config(t_configuration_options *options, ItemList *error_list, ItemList *
 	options->primary_notification_timeout = DEFAULT_PRIMARY_NOTIFICATION_TIMEOUT;
 	options->repmgrd_standby_startup_timeout = -1; /* defaults to "standby_reconnect_timeout" if not set */
 	memset(options->repmgrd_pid_file, 0, sizeof(options->repmgrd_pid_file));
-	options->standby_disconnect_on_failover = false;
-	options->sibling_nodes_disconnect_timeout = DEFAULT_SIBLING_NODES_DISCONNECT_TIMEOUT;
-	options->connection_check_type = CHECK_PING;
-	options->primary_visibility_consensus = false;
-	memset(options->failover_validation_command, 0, sizeof(options->failover_validation_command));
-	options->election_rerun_interval = DEFAULT_ELECTION_RERUN_INTERVAL;
-
-	options->child_nodes_check_interval = DEFAULT_CHILD_NODES_CHECK_INTERVAL;
-	options->child_nodes_disconnect_min_count = DEFAULT_CHILD_NODES_DISCONNECT_MIN_COUNT;
-	options->child_nodes_connected_min_count = DEFAULT_CHILD_NODES_CONNECTED_MIN_COUNT;
-	options->child_nodes_connected_include_witness = DEFAULT_CHILD_NODES_CONNECTED_INCLUDE_WITNESS;
-	options->child_nodes_disconnect_timeout = DEFAULT_CHILD_NODES_DISCONNECT_TIMEOUT;
-	memset(options->child_nodes_disconnect_command, 0, sizeof(options->child_nodes_disconnect_command));
 
 	/*-------------
 	 * witness settings
@@ -385,24 +371,17 @@ _parse_config(t_configuration_options *options, ItemList *error_list, ItemList *
 	options->bdr_local_monitoring_only = false;
 	options->bdr_recovery_timeout = DEFAULT_BDR_RECOVERY_TIMEOUT;
 
-	/*-------------------------
-	 * service command settings
-	 *-------------------------
+	/*-----------------
+	 * service settings
+	 *-----------------
 	 */
 	memset(options->pg_ctl_options, 0, sizeof(options->pg_ctl_options));
-	memset(options->service_start_command, 0, sizeof(options->service_start_command));
 	memset(options->service_stop_command, 0, sizeof(options->service_stop_command));
+	memset(options->service_start_command, 0, sizeof(options->service_start_command));
 	memset(options->service_restart_command, 0, sizeof(options->service_restart_command));
 	memset(options->service_reload_command, 0, sizeof(options->service_reload_command));
 	memset(options->service_promote_command, 0, sizeof(options->service_promote_command));
 
-	/*---------------------------------
-	 * repmgrd service command settings
-	 *---------------------------------
-	 */
-	memset(options->repmgrd_service_start_command, 0, sizeof(options->repmgrd_service_start_command));
-	memset(options->repmgrd_service_stop_command, 0, sizeof(options->repmgrd_service_stop_command));
-
 	/*----------------------------
 	 * event notification settings
 	 *----------------------------
@@ -487,38 +466,25 @@ _parse_config(t_configuration_options *options, ItemList *error_list, ItemList *
 		/* Copy into correct entry in parameters struct */
 		if (strcmp(name, "node_id") == 0)
 		{
-			options->node_id = repmgr_atoi(value, name, error_list, MIN_NODE_ID);
+			options->node_id = repmgr_atoi(value, name, error_list, 1);
 			node_id_found = true;
 		}
 		else if (strcmp(name, "node_name") == 0)
-		{
-			if (strlen(value) < sizeof(options->node_name))
-				strncpy(options->node_name, value, sizeof(options->node_name));
-			else
-				item_list_append_format(error_list,
-										_("value for \"node_name\" must contain fewer than %lu characters"),
-										sizeof(options->node_name));
-		}
+			strncpy(options->node_name, value, MAXLEN);
 		else if (strcmp(name, "conninfo") == 0)
 			strncpy(options->conninfo, value, MAXLEN);
 		else if (strcmp(name, "data_directory") == 0)
-		{
 			strncpy(options->data_directory, value, MAXPGPATH);
-			canonicalize_path(options->data_directory);
-		}
 		else if (strcmp(name, "config_directory") == 0)
-		{
 			strncpy(options->config_directory, value, MAXPGPATH);
-			canonicalize_path(options->config_directory);
-		}
+
 		else if (strcmp(name, "replication_user") == 0)
 		{
-			if (strlen(value) < sizeof(options->replication_user))
-				strncpy(options->replication_user, value, sizeof(options->replication_user));
+			if (strlen(value) < NAMEDATALEN)
+				strncpy(options->replication_user, value, NAMEDATALEN);
 			else
-				item_list_append_format(error_list,
-										_("value for \"replication_user\" must contain fewer than %lu characters"),
-										sizeof(options->replication_user));
+				item_list_append(error_list,
+								 _("value for \"replication_user\" must contain fewer than " STR(NAMEDATALEN) " characters"));
 		}
 		else if (strcmp(name, "pg_bindir") == 0)
 			strncpy(options->pg_bindir, value, MAXPGPATH);
@@ -584,8 +550,6 @@ _parse_config(t_configuration_options *options, ItemList *error_list, ItemList *
 			options->shutdown_check_timeout = repmgr_atoi(value, name, error_list, 0);
 		else if (strcmp(name, "standby_reconnect_timeout") == 0)
 			options->standby_reconnect_timeout = repmgr_atoi(value, name, error_list, 0);
-		else if (strcmp(name, "wal_receive_check_timeout") == 0)
-			options->wal_receive_check_timeout = repmgr_atoi(value, name, error_list, 0);
 
 		/* node rejoin settings */
 		else if (strcmp(name, "node_rejoin_timeout") == 0)
@@ -621,11 +585,11 @@ _parse_config(t_configuration_options *options, ItemList *error_list, ItemList *
 		else if (strcmp(name, "priority") == 0)
 			options->priority = repmgr_atoi(value, name, error_list, 0);
 		else if (strcmp(name, "location") == 0)
-			strncpy(options->location, value, sizeof(options->location));
+			strncpy(options->location, value, MAXLEN);
 		else if (strcmp(name, "promote_command") == 0)
-			strncpy(options->promote_command, value, sizeof(options->promote_command));
+			strncpy(options->promote_command, value, MAXLEN);
 		else if (strcmp(name, "follow_command") == 0)
-			strncpy(options->follow_command, value, sizeof(options->follow_command));
+			strncpy(options->follow_command, value, MAXLEN);
 		else if (strcmp(name, "reconnect_attempts") == 0)
 			options->reconnect_attempts = repmgr_atoi(value, name, error_list, 0);
 		else if (strcmp(name, "reconnect_interval") == 0)
@@ -644,48 +608,6 @@ _parse_config(t_configuration_options *options, ItemList *error_list, ItemList *
 			options->repmgrd_standby_startup_timeout = repmgr_atoi(value, name, error_list, 0);
 		else if (strcmp(name, "repmgrd_pid_file") == 0)
 			strncpy(options->repmgrd_pid_file, value, MAXPGPATH);
-		else if (strcmp(name, "standby_disconnect_on_failover") == 0)
-			options->standby_disconnect_on_failover = parse_bool(value, name, error_list);
-		else if (strcmp(name, "sibling_nodes_disconnect_timeout") == 0)
-			options->sibling_nodes_disconnect_timeout = repmgr_atoi(value, name, error_list, 0);
-		else if (strcmp(name, "connection_check_type") == 0)
-		{
-			if (strcasecmp(value, "ping") == 0)
-			{
-				options->connection_check_type = CHECK_PING;
-			}
-			else if (strcasecmp(value, "connection") == 0)
-			{
-				options->connection_check_type = CHECK_CONNECTION;
-			}
-			else if (strcasecmp(value, "query") == 0)
-			{
-				options->connection_check_type = CHECK_QUERY;
-			}
-			else
-			{
-				item_list_append(error_list,
-								 _("value for \"connection_check_type\" must be \"ping\", \"connection\" or \"query\"\n"));
-			}
-		}
-		else if (strcmp(name, "primary_visibility_consensus") == 0)
-			options->primary_visibility_consensus = parse_bool(value, name, error_list);
-		else if (strcmp(name, "failover_validation_command") == 0)
-			strncpy(options->failover_validation_command, value, sizeof(options->failover_validation_command));
-		else if (strcmp(name, "election_rerun_interval") == 0)
-			options->election_rerun_interval = repmgr_atoi(value, name, error_list, 0);
-		else if (strcmp(name, "child_nodes_check_interval") == 0)
-			options->child_nodes_check_interval = repmgr_atoi(value, name, error_list, 1);
-		else if (strcmp(name, "child_nodes_disconnect_command") == 0)
-			snprintf(options->child_nodes_disconnect_command, sizeof(options->child_nodes_disconnect_command), "%s", value);
-		else if (strcmp(name, "child_nodes_disconnect_min_count") == 0)
-			options->child_nodes_disconnect_min_count = repmgr_atoi(value, name, error_list, -1);
-		else if (strcmp(name, "child_nodes_connected_min_count") == 0)
-			options->child_nodes_connected_min_count = repmgr_atoi(value, name, error_list, -1);
-		else if (strcmp(name, "child_nodes_connected_include_witness") == 0)
-			options->child_nodes_connected_include_witness = parse_bool(value, name, error_list);
-		else if (strcmp(name, "child_nodes_disconnect_timeout") == 0)
-			options->child_nodes_disconnect_timeout = repmgr_atoi(value, name, error_list, 0);
 
 		/* witness settings */
 		else if (strcmp(name, "witness_sync_interval") == 0)
@@ -699,48 +621,41 @@ _parse_config(t_configuration_options *options, ItemList *error_list, ItemList *
 
 		/* service settings */
 		else if (strcmp(name, "pg_ctl_options") == 0)
-			strncpy(options->pg_ctl_options, value, sizeof(options->pg_ctl_options));
-		else if (strcmp(name, "service_start_command") == 0)
-			strncpy(options->service_start_command, value, sizeof(options->service_start_command));
+			strncpy(options->pg_ctl_options, value, MAXLEN);
 		else if (strcmp(name, "service_stop_command") == 0)
-			strncpy(options->service_stop_command, value, sizeof(options->service_stop_command));
+			strncpy(options->service_stop_command, value, MAXLEN);
+		else if (strcmp(name, "service_start_command") == 0)
+			strncpy(options->service_start_command, value, MAXLEN);
 		else if (strcmp(name, "service_restart_command") == 0)
-			strncpy(options->service_restart_command, value, sizeof(options->service_restart_command));
+			strncpy(options->service_restart_command, value, MAXLEN);
 		else if (strcmp(name, "service_reload_command") == 0)
-			strncpy(options->service_reload_command, value, sizeof(options->service_reload_command));
+			strncpy(options->service_reload_command, value, MAXLEN);
 		else if (strcmp(name, "service_promote_command") == 0)
-			strncpy(options->service_promote_command, value, sizeof(options->service_promote_command));
-
-		/* repmgrd service settings */
-		else if (strcmp(name, "repmgrd_service_start_command") == 0)
-			strncpy(options->repmgrd_service_start_command, value, sizeof(options->repmgrd_service_start_command));
-		else if (strcmp(name, "repmgrd_service_stop_command") == 0)
-			strncpy(options->repmgrd_service_stop_command, value, sizeof(options->repmgrd_service_stop_command));
-
+			strncpy(options->service_promote_command, value, MAXLEN);
 
 		/* event notification settings */
 		else if (strcmp(name, "event_notification_command") == 0)
-			strncpy(options->event_notification_command, value, sizeof(options->event_notification_command));
+			strncpy(options->event_notification_command, value, MAXLEN);
 		else if (strcmp(name, "event_notifications") == 0)
 		{
 			/* store unparsed value for comparison when reloading config */
-			strncpy(options->event_notifications_orig, value, sizeof(options->event_notifications_orig));
+			strncpy(options->event_notifications_orig, value, MAXLEN);
 			parse_event_notifications_list(options, value);
 		}
 
 		/* barman settings */
 		else if (strcmp(name, "barman_host") == 0)
-			strncpy(options->barman_host, value, sizeof(options->barman_host));
+			strncpy(options->barman_host, value, MAXLEN);
 		else if (strcmp(name, "barman_server") == 0)
-			strncpy(options->barman_server, value, sizeof(options->barman_server));
+			strncpy(options->barman_server, value, MAXLEN);
 		else if (strcmp(name, "barman_config") == 0)
-			strncpy(options->barman_config, value, sizeof(options->barman_config));
+			strncpy(options->barman_config, value, MAXLEN);
 
 		/* rsync/ssh settings */
 		else if (strcmp(name, "rsync_options") == 0)
-			strncpy(options->rsync_options, value, sizeof(options->rsync_options));
+			strncpy(options->rsync_options, value, MAXLEN);
 		else if (strcmp(name, "ssh_options") == 0)
-			strncpy(options->ssh_options, value, sizeof(options->ssh_options));
+			strncpy(options->ssh_options, value, MAXLEN);
 
 		/* undocumented settings for testing */
 		else if (strcmp(name, "promote_delay") == 0)
@@ -860,16 +775,15 @@ _parse_config(t_configuration_options *options, ItemList *error_list, ItemList *
 		conninfo_options = PQconninfoParse(options->conninfo, &conninfo_errmsg);
 		if (conninfo_options == NULL)
 		{
-			PQExpBufferData error_message_buf;
-			initPQExpBuffer(&error_message_buf);
+			char		error_message_buf[MAXLEN] = "";
 
-			appendPQExpBuffer(&error_message_buf,
-							  _("\"conninfo\": %s	(provided: \"%s\")"),
-							  conninfo_errmsg,
-							  options->conninfo);
+			snprintf(error_message_buf,
+					 MAXLEN,
+					 _("\"conninfo\": %s	(provided: \"%s\")"),
+					 conninfo_errmsg,
+					 options->conninfo);
 
-			item_list_append(error_list, error_message_buf.data);
-			termPQExpBuffer(&error_message_buf);
+			item_list_append(error_list, error_message_buf);
 		}
 
 		PQconninfoFree(conninfo_options);
@@ -1118,25 +1032,15 @@ parse_time_unit_parameter(const char *name, const char *value, char *dest, ItemL
  * loop is started up; it therefore only needs to reload options required
  * by repmgrd, which are as follows:
  *
- * changeable options (keep the list in "doc/repmgrd-configuration.xml" in sync
- * with these):
- *
+ * changeable options:
  * - async_query_timeout
  * - bdr_local_monitoring_only
  * - bdr_recovery_timeout
- * - child_nodes_check_interval
- * - child_nodes_connected_min_count
- * - child_nodes_connected_include_witness
- * - child_nodes_disconnect_command
- * - child_nodes_disconnect_min_count
- * - child_nodes_disconnect_timeout
- * - connection_check_type
  * - conninfo
  * - degraded_monitoring_timeout
  * - event_notification_command
  * - event_notifications
  * - failover
- * - failover_validation_command
  * - follow_command
  * - log_facility
  * - log_file
@@ -1144,19 +1048,12 @@ parse_time_unit_parameter(const char *name, const char *value, char *dest, ItemL
  * - log_status_interval
  * - monitor_interval_secs
  * - monitoring_history
- * - primary_notification_timeout
- * - primary_visibility_consensus
  * - promote_command
+ * - promote_delay
  * - reconnect_attempts
  * - reconnect_interval
  * - repmgrd_standby_startup_timeout
  * - retry_promote_interval_secs
- * - sibling_nodes_disconnect_timeout
- * - standby_disconnect_on_failover
- *
- *
- * Not publicly documented:
- * - promote_delay
  *
  * non-changeable options (repmgrd references these from the "repmgr.nodes"
  * table, not the configuration file)
@@ -1235,12 +1132,13 @@ reload_config(t_configuration_options *orig_options, t_server_type server_type)
 		return false;
 	}
 
-	if (strncmp(new_options.node_name, orig_options->node_name, sizeof(orig_options->node_name)) != 0)
+	if (strncmp(new_options.node_name, orig_options->node_name, MAXLEN) != 0)
 	{
 		log_warning(_("\"node_name\" cannot be changed, keeping current configuration"));
 		return false;
 	}
 
+
 	/*
 	 * No configuration problems detected - copy any changed values
 	 *
@@ -1277,95 +1175,8 @@ reload_config(t_configuration_options *orig_options, t_server_type server_type)
 		config_changed = true;
 	}
 
-	/* child_nodes_check_interval */
-	if (orig_options->child_nodes_check_interval != new_options.child_nodes_check_interval)
-	{
-		if (new_options.child_nodes_check_interval < 0)
-		{
-			log_error(_("\"child_nodes_check_interval\" must be \"0\" or greater; provided: \"%i\""),
-					  new_options.child_nodes_check_interval);
-		}
-		else
-		{
-			orig_options->child_nodes_check_interval = new_options.child_nodes_check_interval;
-			log_info(_("\"child_nodes_check_interval\" is now \"%i\""), new_options.child_nodes_check_interval);
-
-			config_changed = true;
-		}
-	}
-
-	/* child_nodes_disconnect_command */
-	if (strncmp(orig_options->child_nodes_disconnect_command, new_options.child_nodes_disconnect_command, sizeof(orig_options->child_nodes_disconnect_command)) != 0)
-	{
-		snprintf(orig_options->child_nodes_disconnect_command, sizeof(orig_options->child_nodes_disconnect_command),
-				 "%s", new_options.child_nodes_disconnect_command);
-		log_info(_("\"child_nodes_disconnect_command\" is now \"%s\""), new_options.child_nodes_disconnect_command);
-
-		config_changed = true;
-	}
-
-	/* child_nodes_disconnect_min_count */
-	if (orig_options->child_nodes_disconnect_min_count != new_options.child_nodes_disconnect_min_count)
-	{
-		if (new_options.child_nodes_disconnect_min_count < 0)
-		{
-			log_error(_("\"child_nodes_disconnect_min_count\" must be \"0\" or greater; provided: \"%i\""),
-					  new_options.child_nodes_disconnect_min_count);
-		}
-		else
-		{
-			orig_options->child_nodes_disconnect_min_count = new_options.child_nodes_disconnect_min_count;
-			log_info(_("\"child_nodes_disconnect_min_count\" is now \"%i\""), new_options.child_nodes_disconnect_min_count);
-
-			config_changed = true;
-		}
-	}
-
-	/* child_nodes_connected_min_count */
-	if (orig_options->child_nodes_connected_min_count != new_options.child_nodes_connected_min_count)
-	{
-		if (new_options.child_nodes_connected_min_count < 0)
-		{
-			log_error(_("\"child_nodes_connected_min_count\" must be \"0\" or greater; provided: \"%i\""),
-					  new_options.child_nodes_connected_min_count);
-		}
-		else
-		{
-			orig_options->child_nodes_connected_min_count = new_options.child_nodes_connected_min_count;
-			log_info(_("\"child_nodes_connected_min_count\" is now \"%i\""), new_options.child_nodes_connected_min_count);
-
-			config_changed = true;
-		}
-	}
-
-	/* child_nodes_connected_include_witness */
-	if (orig_options->child_nodes_connected_include_witness != new_options.child_nodes_connected_include_witness)
-	{
-		orig_options->child_nodes_connected_include_witness = new_options.child_nodes_connected_include_witness;
-		log_info(_("\"child_nodes_connected_include_witness\" is now \"%i\""), new_options.child_nodes_connected_include_witness);
-
-		config_changed = true;
-	}
-
-	/* child_nodes_disconnect_timeout */
-	if (orig_options->child_nodes_disconnect_timeout != new_options.child_nodes_disconnect_timeout)
-	{
-		if (new_options.child_nodes_disconnect_timeout < 0)
-		{
-			log_error(_("\"child_nodes_disconnect_timeout\" must be \"0\" or greater; provided: \"%i\""),
-					  new_options.child_nodes_disconnect_timeout);
-		}
-		else
-		{
-			orig_options->child_nodes_disconnect_timeout = new_options.child_nodes_disconnect_timeout;
-			log_info(_("\"child_nodes_disconnect_timeout\" is now \"%i\""), new_options.child_nodes_disconnect_timeout);
-
-			config_changed = true;
-		}
-	}
-
 	/* conninfo */
-	if (strncmp(orig_options->conninfo, new_options.conninfo, sizeof(orig_options->conninfo)) != 0)
+	if (strncmp(orig_options->conninfo, new_options.conninfo, MAXLEN) != 0)
 	{
 		/* Test conninfo string works */
 		conn = establish_db_connection(new_options.conninfo, false);
@@ -1375,14 +1186,11 @@ reload_config(t_configuration_options *orig_options, t_server_type server_type)
 		}
 		else
 		{
-			snprintf(orig_options->conninfo, sizeof(orig_options->conninfo),
-					 "%s", new_options.conninfo);
+			strncpy(orig_options->conninfo, new_options.conninfo, MAXLEN);
 			log_info(_("\"conninfo\" is now \"%s\""), new_options.conninfo);
+
 		}
-
 		PQfinish(conn);
-
-		config_changed = true;
 	}
 
 	/* degraded_monitoring_timeout */
@@ -1395,20 +1203,18 @@ reload_config(t_configuration_options *orig_options, t_server_type server_type)
 	}
 
 	/* event_notification_command */
-	if (strncmp(orig_options->event_notification_command, new_options.event_notification_command, sizeof(orig_options->event_notification_command)) != 0)
+	if (strncmp(orig_options->event_notification_command, new_options.event_notification_command, MAXLEN) != 0)
 	{
-		snprintf(orig_options->event_notification_command, sizeof(orig_options->event_notification_command),
-				 "%s", new_options.event_notification_command);
+		strncpy(orig_options->event_notification_command, new_options.event_notification_command, MAXLEN);
 		log_info(_("\"event_notification_command\" is now \"%s\""), new_options.event_notification_command);
 
 		config_changed = true;
 	}
 
 	/* event_notifications */
-	if (strncmp(orig_options->event_notifications_orig, new_options.event_notifications_orig, sizeof(orig_options->event_notifications_orig)) != 0)
+	if (strncmp(orig_options->event_notifications_orig, new_options.event_notifications_orig, MAXLEN) != 0)
 	{
-		snprintf(orig_options->event_notifications_orig, sizeof(orig_options->event_notifications_orig),
-				 "%s", new_options.event_notifications_orig);
+		strncpy(orig_options->event_notifications_orig, new_options.event_notifications_orig, MAXLEN);
 		log_info(_("\"event_notifications\" is now \"%s\""), new_options.event_notifications_orig);
 
 		clear_event_notification_list(orig_options);
@@ -1426,10 +1232,9 @@ reload_config(t_configuration_options *orig_options, t_server_type server_type)
 	}
 
 	/* follow_command */
-	if (strncmp(orig_options->follow_command, new_options.follow_command, sizeof(orig_options->follow_command)) != 0)
+	if (strncmp(orig_options->follow_command, new_options.follow_command, MAXLEN) != 0)
 	{
-		snprintf(orig_options->follow_command, sizeof(orig_options->follow_command),
-				 "%s", new_options.follow_command);
+		strncpy(orig_options->follow_command, new_options.follow_command, MAXLEN);
 		log_info(_("\"follow_command\" is now \"%s\""), new_options.follow_command);
 
 		config_changed = true;
@@ -1462,11 +1267,11 @@ reload_config(t_configuration_options *orig_options, t_server_type server_type)
 		config_changed = true;
 	}
 
+
 	/* promote_command */
-	if (strncmp(orig_options->promote_command, new_options.promote_command, sizeof(orig_options->promote_command)) != 0)
+	if (strncmp(orig_options->promote_command, new_options.promote_command, MAXLEN) != 0)
 	{
-		snprintf(orig_options->promote_command, sizeof(orig_options->promote_command),
-				 "%s", new_options.promote_command);
+		strncpy(orig_options->promote_command, new_options.promote_command, MAXLEN);
 		log_info(_("\"promote_command\" is now \"%s\""), new_options.promote_command);
 
 		config_changed = true;
@@ -1508,71 +1313,23 @@ reload_config(t_configuration_options *orig_options, t_server_type server_type)
 		config_changed = true;
 	}
 
-	/* standby_disconnect_on_failover */
-	if (orig_options->standby_disconnect_on_failover != new_options.standby_disconnect_on_failover)
-	{
-		orig_options->standby_disconnect_on_failover = new_options.standby_disconnect_on_failover;
-		log_info(_("\"standby_disconnect_on_failover\" is now \"%s\""),
-				 new_options.standby_disconnect_on_failover == true ? "TRUE" : "FALSE");
-		config_changed = true;
-	}
-
-	/* sibling_nodes_disconnect_timeout */
-	if (orig_options->sibling_nodes_disconnect_timeout != new_options.sibling_nodes_disconnect_timeout)
-	{
-		orig_options->sibling_nodes_disconnect_timeout = new_options.sibling_nodes_disconnect_timeout;
-		log_info(_("\"sibling_nodes_disconnect_timeout\" is now \"%i\""),
-				 new_options.sibling_nodes_disconnect_timeout);
-		config_changed = true;
-	}
-
-	/* connection_check_type */
-	if (orig_options->connection_check_type != new_options.connection_check_type)
-	{
-		orig_options->connection_check_type = new_options.connection_check_type;
-		log_info(_("\"connection_check_type\" is now \"%s\""),
-				 print_connection_check_type(new_options.connection_check_type));
-		config_changed = true;
-	}
-
-	/* primary_visibility_consensus */
-	if (orig_options->primary_visibility_consensus != new_options.primary_visibility_consensus)
-	{
-		orig_options->primary_visibility_consensus = new_options.primary_visibility_consensus;
-		log_info(_("\"primary_visibility_consensus\" is now \"%s\""),
-				 new_options.primary_visibility_consensus == true ? "TRUE" : "FALSE");
-		config_changed = true;
-	}
-
-	/* failover_validation_command */
-	if (strncmp(orig_options->failover_validation_command, new_options.failover_validation_command, sizeof(orig_options->failover_validation_command)) != 0)
-	{
-		snprintf(orig_options->failover_validation_command, sizeof(orig_options->failover_validation_command),
-				 "%s", new_options.failover_validation_command);
-		log_info(_("\"failover_validation_command\" is now \"%s\""), new_options.failover_validation_command);
-
-		config_changed = true;
-	}
-
 	/*
 	 * Handle changes to logging configuration
 	 */
 
 	/* log_facility */
-	if (strncmp(orig_options->log_facility, new_options.log_facility, sizeof(orig_options->log_facility)) != 0)
+	if (strncmp(orig_options->log_facility, new_options.log_facility, MAXLEN) != 0)
 	{
-		snprintf(orig_options->log_facility, sizeof(orig_options->log_facility),
-				 "%s", new_options.log_facility);
+		strncpy(orig_options->log_facility, new_options.log_facility, MAXLEN);
 		log_info(_("\"log_facility\" is now \"%s\""), new_options.log_facility);
 
 		log_config_changed = true;
 	}
 
 	/* log_file */
-	if (strncmp(orig_options->log_file, new_options.log_file, sizeof(orig_options->log_file)) != 0)
+	if (strncmp(orig_options->log_file, new_options.log_file, MAXLEN) != 0)
 	{
-		snprintf(orig_options->log_file, sizeof(orig_options->log_file),
-				 "%s", new_options.log_file);
+		strncpy(orig_options->log_file, new_options.log_file, MAXLEN);
 		log_info(_("\"log_file\" is now \"%s\""), new_options.log_file);
 
 		log_config_changed = true;
@@ -1580,10 +1337,9 @@ reload_config(t_configuration_options *orig_options, t_server_type server_type)
 
 
 	/* log_level */
-	if (strncmp(orig_options->log_level, new_options.log_level, sizeof(orig_options->log_level)) != 0)
+	if (strncmp(orig_options->log_level, new_options.log_level, MAXLEN) != 0)
 	{
-		snprintf(orig_options->log_level, sizeof(orig_options->log_level),
-				 "%s", new_options.log_level);
+		strncpy(orig_options->log_level, new_options.log_level, MAXLEN);
 		log_info(_("\"log_level\" is now \"%s\""), new_options.log_level);
 
 		log_config_changed = true;
@@ -1768,7 +1524,7 @@ repmgr_atoi(const char *value, const char *config_item, ItemList *error_list, in
  *
  * TODO: accept "any unambiguous prefix of one of these" as per postgresql.conf:
  *
- *   https://www.postgresql.org/docs/current/config-setting.html
+ *   https://www.postgresql.org/docs/current/static/config-setting.html
  */
 bool
 parse_bool(const char *s, const char *config_item, ItemList *error_list)
@@ -2077,10 +1833,18 @@ parse_pg_basebackup_options(const char *pg_basebackup_options, t_basebackup_opti
 	struct option *long_options = NULL;
 
 
-	/*
-	 * We're only interested in these options.
-	 */
+	/* We're only interested in these options */
+	static struct option long_options_9[] =
+	{
+		{"slot", required_argument, NULL, 'S'},
+		{"xlog-method", required_argument, NULL, 'X'},
+		{NULL, 0, NULL, 0}
+	};
 
+	/*
+	 * From PostgreSQL 10, --xlog-method is renamed --wal-method and there's
+	 * also --no-slot, which we'll want to consider.
+	 */
 	static struct option long_options_10[] =
 	{
 		{"slot", required_argument, NULL, 'S'},
@@ -2089,17 +1853,6 @@ parse_pg_basebackup_options(const char *pg_basebackup_options, t_basebackup_opti
 		{NULL, 0, NULL, 0}
 	};
 
-	/*
-	 * Pre-PostgreSQL 10 options
-	 */
-	static struct option long_options_legacy[] =
-	{
-		{"slot", required_argument, NULL, 'S'},
-		{"xlog-method", required_argument, NULL, 'X'},
-		{NULL, 0, NULL, 0}
-	};
-
-
 	/* Don't attempt to tokenise an empty string */
 	if (!strlen(pg_basebackup_options))
 		return backup_options_ok;
@@ -2107,7 +1860,7 @@ parse_pg_basebackup_options(const char *pg_basebackup_options, t_basebackup_opti
 	if (server_version_num >= 100000)
 		long_options = long_options_10;
 	else
-		long_options = long_options_legacy;
+		long_options = long_options_9;
 
 	argc_item = parse_output_to_argv(pg_basebackup_options, &argv_array);
 
@@ -2126,7 +1879,7 @@ parse_pg_basebackup_options(const char *pg_basebackup_options, t_basebackup_opti
 				strncpy(backup_options->slot, optarg, MAXLEN);
 				break;
 			case 'X':
-				strncpy(backup_options->wal_method, optarg, MAXLEN);
+				strncpy(backup_options->xlog_method, optarg, MAXLEN);
 				break;
 			case 1:
 				backup_options->no_slot = true;
@@ -2157,21 +1910,3 @@ parse_pg_basebackup_options(const char *pg_basebackup_options, t_basebackup_opti
 
 	return backup_options_ok;
 }
-
-
-const char *
-print_connection_check_type(ConnectionCheckType type)
-{
-	switch (type)
-	{
-		case CHECK_PING:
-			return "ping";
-		case CHECK_QUERY:
-			return "query";
-		case CHECK_CONNECTION:
-			return "connection";
-	}
-
-	/* should never reach here */
-	return "UNKNOWN";
-}

configfile.h

@@ -1,7 +1,7 @@
 /*
  * configfile.h
  *
- * Copyright (c) 2ndQuadrant, 2010-2019
+ * Copyright (c) 2ndQuadrant, 2010-2018
  *
  *
  * This program is free software: you can redistribute it and/or modify
@@ -37,13 +37,6 @@ typedef enum
 	FAILOVER_AUTOMATIC
 } failover_mode_opt;
 
-typedef enum
-{
-	CHECK_PING,
-	CHECK_QUERY,
-	CHECK_CONNECTION
-} ConnectionCheckType;
-
 typedef struct EventNotificationListCell
 {
 	struct EventNotificationListCell *next;
@@ -76,7 +69,7 @@ typedef struct
 {
 	/* node information */
 	int			node_id;
-	char		node_name[NAMEDATALEN];
+	char		node_name[MAXLEN];
 	char		conninfo[MAXLEN];
 	char		replication_user[NAMEDATALEN];
 	char		data_directory[MAXPGPATH];
@@ -88,7 +81,7 @@ typedef struct
 	/* log settings */
 	char		log_level[MAXLEN];
 	char		log_facility[MAXLEN];
-	char		log_file[MAXPGPATH];
+	char		log_file[MAXLEN];
 	int			log_status_interval;
 
 	/* standby clone settings */
@@ -113,7 +106,6 @@ typedef struct
 	/* standby switchover settings */
 	int			shutdown_check_timeout;
 	int			standby_reconnect_timeout;
-	int			wal_receive_check_timeout;
 
 	/* node rejoin settings */
 	int			node_rejoin_timeout;
@@ -142,18 +134,6 @@ typedef struct
 	int			primary_notification_timeout;
 	int			repmgrd_standby_startup_timeout;
 	char		repmgrd_pid_file[MAXPGPATH];
-	bool		standby_disconnect_on_failover;
-	int			sibling_nodes_disconnect_timeout;
-	ConnectionCheckType connection_check_type;
-	bool		primary_visibility_consensus;
-	char		failover_validation_command[MAXPGPATH];
-	int			election_rerun_interval;
-	int			child_nodes_check_interval;
-	int			child_nodes_disconnect_min_count;
-	int			child_nodes_connected_min_count;
-	bool		child_nodes_connected_include_witness;
-	int			child_nodes_disconnect_timeout;
-	char		child_nodes_disconnect_command[MAXPGPATH];
 
 	/* BDR settings */
 	bool		bdr_local_monitoring_only;
@@ -161,18 +141,14 @@ typedef struct
 
 	/* service settings */
 	char		pg_ctl_options[MAXLEN];
-	char		service_start_command[MAXPGPATH];
-	char		service_stop_command[MAXPGPATH];
-	char		service_restart_command[MAXPGPATH];
-	char		service_reload_command[MAXPGPATH];
-	char		service_promote_command[MAXPGPATH];
-
-	/* repmgrd service settings */
-	char		repmgrd_service_start_command[MAXPGPATH];
-	char		repmgrd_service_stop_command[MAXPGPATH];
+	char		service_stop_command[MAXLEN];
+	char		service_start_command[MAXLEN];
+	char		service_restart_command[MAXLEN];
+	char		service_reload_command[MAXLEN];
+	char		service_promote_command[MAXLEN];
 
 	/* event notification settings */
-	char		event_notification_command[MAXPGPATH];
+	char		event_notification_command[MAXLEN];
 	char		event_notifications_orig[MAXLEN];
 	EventNotificationList event_notifications;
 
@@ -198,7 +174,7 @@ typedef struct
 		/* node information */ \
 		UNKNOWN_NODE_ID, "", "", "", "", "", "", "", REPLICATION_TYPE_PHYSICAL,	\
 		/* log settings */ \
-		"", "", "", DEFAULT_LOG_STATUS_INTERVAL, \
+		"", "", "", DEFAULT_LOG_STATUS_INTERVAL,	\
 		/* standby clone settings */ \
 		false, "", "", { NULL, NULL }, "", false, "", false, "", \
 		/* standby promote settings */ \
@@ -209,7 +185,6 @@ typedef struct
 		/* standby switchover settings */ \
 		DEFAULT_SHUTDOWN_CHECK_TIMEOUT, \
 		DEFAULT_STANDBY_RECONNECT_TIMEOUT, \
-		DEFAULT_WAL_RECEIVE_CHECK_TIMEOUT, \
 		/* node rejoin settings */ \
 		DEFAULT_NODE_REJOIN_TIMEOUT, \
 		/* node check settings */ \
@@ -224,20 +199,12 @@ typedef struct
         DEFAULT_RECONNECTION_INTERVAL, \
         false, -1, \
 		DEFAULT_ASYNC_QUERY_TIMEOUT, \
-		DEFAULT_PRIMARY_NOTIFICATION_TIMEOUT, \
-		-1, "", false, DEFAULT_SIBLING_NODES_DISCONNECT_TIMEOUT, \
-		CHECK_PING, true, "", DEFAULT_ELECTION_RERUN_INTERVAL, \
-		DEFAULT_CHILD_NODES_CHECK_INTERVAL, \
-		DEFAULT_CHILD_NODES_DISCONNECT_MIN_COUNT, \
-		DEFAULT_CHILD_NODES_CONNECTED_MIN_COUNT, \
-		DEFAULT_CHILD_NODES_CONNECTED_INCLUDE_WITNESS, \
-		DEFAULT_CHILD_NODES_DISCONNECT_TIMEOUT, "", \
+		DEFAULT_PRIMARY_NOTIFICATION_TIMEOUT,	\
+		-1, "", \
 		/* BDR settings */ \
 		false, DEFAULT_BDR_RECOVERY_TIMEOUT, \
 		/* service settings */ \
 		"", "", "", "", "", "", \
-		/* repmgrd service settings */ \
-		"", "",  \
 		/* event notification settings */ \
 		"", "", { NULL, NULL }, \
 		/* barman settings */ \
@@ -253,7 +220,7 @@ typedef struct
 typedef struct
 {
 	char		slot[MAXLEN];
-	char		wal_method[MAXLEN];
+	char		xlog_method[MAXLEN];
 	bool		no_slot;		/* from PostgreSQL 10 */
 } t_basebackup_options;
 
@@ -340,6 +307,5 @@ void free_parsed_argv(char ***argv_array);
 /* called by repmgr-client and repmgrd */
 void		exit_with_cli_errors(ItemList *error_list, const char *repmgr_command);
 void		print_item_list(ItemList *item_list);
-const char *print_connection_check_type(ConnectionCheckType type);
 
 #endif							/* _REPMGR_CONFIGFILE_H_ */

configure

@@ -1,8 +1,8 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for repmgr 4.4.
+# Generated by GNU Autoconf 2.69 for repmgr 4.2.
 #
-# Report bugs to <repmgr@googlegroups.com>.
+# Report bugs to <pgsql-bugs@postgresql.org>.
 #
 #
 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
@@ -11,7 +11,7 @@
 # This configure script is free software; the Free Software Foundation
 # gives unlimited permission to copy, distribute and modify it.
 #
-# Copyright (c) 2010-2019, 2ndQuadrant Ltd.
+# Copyright (c) 2010-2018, 2ndQuadrant Ltd.
 ## -------------------- ##
 ## M4sh Initialization. ##
 ## -------------------- ##
@@ -269,7 +269,7 @@ fi
     $as_echo "$0: be upgraded to zsh 4.3.4 or later."
   else
     $as_echo "$0: Please tell bug-autoconf@gnu.org and
-$0: repmgr@googlegroups.com about your system, including
+$0: pgsql-bugs@postgresql.org about your system, including
 $0: any error possibly output before this message. Then
 $0: install a modern shell, or manually run the script
 $0: under such a shell if you do have one."
@@ -582,10 +582,10 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='repmgr'
 PACKAGE_TARNAME='repmgr'
-PACKAGE_VERSION='4.4'
-PACKAGE_STRING='repmgr 4.4'
-PACKAGE_BUGREPORT='repmgr@googlegroups.com'
-PACKAGE_URL='https://repmgr.org/'
+PACKAGE_VERSION='4.2'
+PACKAGE_STRING='repmgr 4.2'
+PACKAGE_BUGREPORT='pgsql-bugs@postgresql.org'
+PACKAGE_URL='https://2ndquadrant.com/en/resources/repmgr/'
 
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
@@ -1178,7 +1178,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures repmgr 4.4 to adapt to many kinds of systems.
+\`configure' configures repmgr 4.2 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1239,7 +1239,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of repmgr 4.4:";;
+     short | recursive ) echo "Configuration of repmgr 4.2:";;
    esac
   cat <<\_ACEOF
 
@@ -1249,8 +1249,8 @@ Some influential environment variables:
 Use these variables to override the choices made by `configure' or to help
 it to find libraries and programs with nonstandard names/locations.
 
-Report bugs to <repmgr@googlegroups.com>.
-repmgr home page: <https://repmgr.org/>.
+Report bugs to <pgsql-bugs@postgresql.org>.
+repmgr home page: <https://2ndquadrant.com/en/resources/repmgr/>.
 _ACEOF
 ac_status=$?
 fi
@@ -1313,14 +1313,14 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-repmgr configure 4.4
+repmgr configure 4.2
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 
-Copyright (c) 2010-2019, 2ndQuadrant Ltd.
+Copyright (c) 2010-2018, 2ndQuadrant Ltd.
 _ACEOF
   exit
 fi
@@ -1332,7 +1332,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by repmgr $as_me 4.4, which was
+It was created by repmgr $as_me 4.2, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -1851,6 +1851,8 @@ ac_config_files="$ac_config_files Makefile"
 
 ac_config_files="$ac_config_files Makefile.global"
 
+ac_config_files="$ac_config_files doc/Makefile"
+
 cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
 # tests run on this system so they can be shared between configure
@@ -2357,7 +2359,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by repmgr $as_me 4.4, which was
+This file was extended by repmgr $as_me 4.2, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -2413,14 +2415,14 @@ $config_files
 Configuration headers:
 $config_headers
 
-Report bugs to <repmgr@googlegroups.com>.
-repmgr home page: <https://repmgr.org/>."
+Report bugs to <pgsql-bugs@postgresql.org>.
+repmgr home page: <https://2ndquadrant.com/en/resources/repmgr/>."
 
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-repmgr config.status 4.4
+repmgr config.status 4.2
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
@@ -2544,6 +2546,7 @@ do
     "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
     "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
     "Makefile.global") CONFIG_FILES="$CONFIG_FILES Makefile.global" ;;
+    "doc/Makefile") CONFIG_FILES="$CONFIG_FILES doc/Makefile" ;;
 
   *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
   esac

configure.in

@@ -1,6 +1,6 @@
-AC_INIT([repmgr], [4.4], [repmgr@googlegroups.com], [repmgr], [https://repmgr.org/])
+AC_INIT([repmgr], [4.2], [pgsql-bugs@postgresql.org], [repmgr], [https://2ndquadrant.com/en/resources/repmgr/])
 
-AC_COPYRIGHT([Copyright (c) 2010-2019, 2ndQuadrant Ltd.])
+AC_COPYRIGHT([Copyright (c) 2010-2018, 2ndQuadrant Ltd.])
 
 AC_CONFIG_HEADER(config.h)
 
@@ -59,5 +59,6 @@ AC_SUBST(vpath_build)
 
 AC_CONFIG_FILES([Makefile])
 AC_CONFIG_FILES([Makefile.global])
+AC_CONFIG_FILES([doc/Makefile])
 AC_OUTPUT
 

controldata.c

@@ -1,12 +1,6 @@
 /*
- * controldata.c - functions for reading the pg_control file
- *
- * The functions provided here enable repmgr to read a pg_control file
- * in a version-indepent way, even if the PostgreSQL instance is not
- * running. For that reason we can't use on the pg_control_*() functions
- * provided in PostgreSQL 9.6 and later.
- *
- * Copyright (c) 2ndQuadrant, 2010-2019
+ * controldata.c
+ * Copyright (c) 2ndQuadrant, 2010-2018
  *
  * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
@@ -36,53 +30,6 @@
 
 static ControlFileInfo *get_controlfile(const char *DataDir);
 
-int
-get_pg_version(const char *data_directory, char *version_string)
-{
-	char		PgVersionPath[MAXPGPATH] = "";
-	FILE	   *fp = NULL;
-	char	   *endptr = NULL;
-	char		file_version_string[MAX_VERSION_STRING] = "";
-	long		file_major, file_minor;
-	int			ret;
-
-	snprintf(PgVersionPath, MAXPGPATH, "%s/PG_VERSION", data_directory);
-
-	fp = fopen(PgVersionPath, "r");
-
-	if (fp == NULL)
-	{
-		log_warning(_("could not open file \"%s\" for reading"),
-					PgVersionPath);
-		log_detail("%s", strerror(errno));
-		return UNKNOWN_SERVER_VERSION_NUM;
-	}
-
-	file_version_string[0] = '\0';
-
-	ret = fscanf(fp, "%23s", file_version_string);
-	fclose(fp);
-
-	if (ret != 1 || endptr == file_version_string)
-	{
-		log_warning(_("unable to determine major version number from PG_VERSION"));
-
-		return UNKNOWN_SERVER_VERSION_NUM;
-	}
-
-	file_major = strtol(file_version_string, &endptr, 10);
-	file_minor = 0;
-
-	if (*endptr == '.')
-		file_minor = strtol(endptr + 1, NULL, 10);
-
-	if (version_string != NULL)
-		strncpy(version_string, file_version_string, MAX_VERSION_STRING);
-
-	return ((int) file_major * 10000) + ((int) file_minor * 100);
-}
-
-
 uint64
 get_system_identifier(const char *data_directory)
 {
@@ -97,7 +44,6 @@ get_system_identifier(const char *data_directory)
 	return system_identifier;
 }
 
-
 DBState
 get_db_state(const char *data_directory)
 {
@@ -114,7 +60,7 @@ get_db_state(const char *data_directory)
 }
 
 
-XLogRecPtr
+extern XLogRecPtr
 get_latest_checkpoint_location(const char *data_directory)
 {
 	ControlFileInfo *control_file_info = NULL;
@@ -166,59 +112,10 @@ describe_db_state(DBState state)
 		case DB_IN_PRODUCTION:
 			return _("in production");
 	}
-
 	return _("unrecognized status code");
 }
 
 
-TimeLineID
-get_timeline(const char *data_directory)
-{
-	ControlFileInfo *control_file_info = NULL;
-	TimeLineID		 timeline = -1;
-
-	control_file_info = get_controlfile(data_directory);
-
-	timeline = (int) control_file_info->timeline;
-
-	pfree(control_file_info);
-
-	return timeline;
-}
-
-
-TimeLineID
-get_min_recovery_end_timeline(const char *data_directory)
-{
-	ControlFileInfo *control_file_info = NULL;
-	TimeLineID		 timeline = -1;
-
-	control_file_info = get_controlfile(data_directory);
-
-	timeline = (int) control_file_info->minRecoveryPointTLI;
-
-	pfree(control_file_info);
-
-	return timeline;
-}
-
-
-XLogRecPtr
-get_min_recovery_location(const char *data_directory)
-{
-	ControlFileInfo *control_file_info = NULL;
-	XLogRecPtr	minRecoveryPoint  = InvalidXLogRecPtr;
-
-	control_file_info = get_controlfile(data_directory);
-
-	minRecoveryPoint = control_file_info->minRecoveryPoint;
-
-	pfree(control_file_info);
-
-	return minRecoveryPoint;
-}
-
-
 /*
  * We maintain our own version of get_controlfile() as we need cross-version
  * compatibility, and also don't care if the file isn't readable.
@@ -226,10 +123,14 @@ get_min_recovery_location(const char *data_directory)
 static ControlFileInfo *
 get_controlfile(const char *DataDir)
 {
-	char		file_version_string[MAX_VERSION_STRING] = "";
 	ControlFileInfo *control_file_info;
-	int			fd, version_num;
+	FILE	   *fp = NULL;
+	int			fd, ret, version_num;
+	char		PgVersionPath[MAXPGPATH] = "";
 	char		ControlFilePath[MAXPGPATH] = "";
+	char		file_version_string[64] = "";
+	long		file_major, file_minor;
+	char	   *endptr = NULL;
 	void	   *ControlFileDataPtr = NULL;
 	int			expected_size = 0;
 
@@ -241,32 +142,50 @@ get_controlfile(const char *DataDir)
 	control_file_info->state = DB_SHUTDOWNED;
 	control_file_info->checkPoint = InvalidXLogRecPtr;
 	control_file_info->data_checksum_version = -1;
-	control_file_info->timeline = -1;
-	control_file_info->minRecoveryPointTLI = -1;
-	control_file_info->minRecoveryPoint = InvalidXLogRecPtr;
 
 	/*
 	 * Read PG_VERSION, as we'll need to determine which struct to read
 	 * the control file contents into
 	 */
+	snprintf(PgVersionPath, MAXPGPATH, "%s/PG_VERSION", DataDir);
 
-	version_num = get_pg_version(DataDir, file_version_string);
+	fp = fopen(PgVersionPath, "r");
 
-	if (version_num == UNKNOWN_SERVER_VERSION_NUM)
+	if (fp == NULL)
 	{
-		log_warning(_("unable to determine server version number from PG_VERSION"));
+		log_warning(_("could not open file \"%s\" for reading"),
+					PgVersionPath);
+		log_detail("%s", strerror(errno));
 		return control_file_info;
 	}
 
-	if (version_num < MIN_SUPPORTED_VERSION_NUM)
+	file_version_string[0] = '\0';
+
+	ret = fscanf(fp, "%63s", file_version_string);
+	fclose(fp);
+
+	if (ret != 1 || endptr == file_version_string)
 	{
-		log_warning(_("data directory appears to be initialised for %s"),
-					file_version_string);
-		log_detail(_("minimum supported PostgreSQL version is %s"),
-				   MIN_SUPPORTED_VERSION);
+		log_warning(_("unable to determine major version number from PG_VERSION"));
+
 		return control_file_info;
 	}
 
+	file_major = strtol(file_version_string, &endptr, 10);
+	file_minor = 0;
+
+	if (*endptr == '.')
+		file_minor = strtol(endptr + 1, NULL, 10);
+
+	version_num = ((int) file_major * 10000) + ((int) file_minor * 100);
+
+	if (version_num < 90300)
+	{
+		log_warning(_("Data directory appears to be initialised for %s"), file_version_string);
+		return control_file_info;
+	}
+
+
 	snprintf(ControlFilePath, MAXPGPATH, "%s/global/pg_control", DataDir);
 
 	if ((fd = open(ControlFilePath, O_RDONLY | PG_BINARY, 0)) == -1)
@@ -301,8 +220,6 @@ get_controlfile(const char *DataDir)
 					ControlFilePath);
 		log_detail("%s", strerror(errno));
 
-		close(fd);
-
 		return control_file_info;
 	}
 
@@ -310,27 +227,13 @@ get_controlfile(const char *DataDir)
 
 	control_file_info->control_file_processed = true;
 
-	if (version_num >= 120000)
-	{
-		ControlFileData12 *ptr = (struct ControlFileData12 *)ControlFileDataPtr;
-		control_file_info->system_identifier = ptr->system_identifier;
-		control_file_info->state = ptr->state;
-		control_file_info->checkPoint = ptr->checkPoint;
-		control_file_info->data_checksum_version = ptr->data_checksum_version;
-		control_file_info->timeline = ptr->checkPointCopy.ThisTimeLineID;
-		control_file_info->minRecoveryPointTLI = ptr->minRecoveryPointTLI;
-		control_file_info->minRecoveryPoint = ptr->minRecoveryPoint;
-	}
-	else if (version_num >= 110000)
+	if (version_num >= 110000)
 	{
 		ControlFileData11 *ptr = (struct ControlFileData11 *)ControlFileDataPtr;
 		control_file_info->system_identifier = ptr->system_identifier;
 		control_file_info->state = ptr->state;
 		control_file_info->checkPoint = ptr->checkPoint;
 		control_file_info->data_checksum_version = ptr->data_checksum_version;
-		control_file_info->timeline = ptr->checkPointCopy.ThisTimeLineID;
-		control_file_info->minRecoveryPointTLI = ptr->minRecoveryPointTLI;
-		control_file_info->minRecoveryPoint = ptr->minRecoveryPoint;
 	}
 	else if (version_num >= 90500)
 	{
@@ -339,9 +242,6 @@ get_controlfile(const char *DataDir)
 		control_file_info->state = ptr->state;
 		control_file_info->checkPoint = ptr->checkPoint;
 		control_file_info->data_checksum_version = ptr->data_checksum_version;
-		control_file_info->timeline = ptr->checkPointCopy.ThisTimeLineID;
-		control_file_info->minRecoveryPointTLI = ptr->minRecoveryPointTLI;
-		control_file_info->minRecoveryPoint = ptr->minRecoveryPoint;
 	}
 	else if (version_num >= 90400)
 	{
@@ -350,9 +250,6 @@ get_controlfile(const char *DataDir)
 		control_file_info->state = ptr->state;
 		control_file_info->checkPoint = ptr->checkPoint;
 		control_file_info->data_checksum_version = ptr->data_checksum_version;
-		control_file_info->timeline = ptr->checkPointCopy.ThisTimeLineID;
-		control_file_info->minRecoveryPointTLI = ptr->minRecoveryPointTLI;
-		control_file_info->minRecoveryPoint = ptr->minRecoveryPoint;
 	}
 	else if (version_num >= 90300)
 	{
@@ -361,9 +258,6 @@ get_controlfile(const char *DataDir)
 		control_file_info->state = ptr->state;
 		control_file_info->checkPoint = ptr->checkPoint;
 		control_file_info->data_checksum_version = ptr->data_checksum_version;
-		control_file_info->timeline = ptr->checkPointCopy.ThisTimeLineID;
-		control_file_info->minRecoveryPointTLI = ptr->minRecoveryPointTLI;
-		control_file_info->minRecoveryPoint = ptr->minRecoveryPoint;
 	}
 
 	pfree(ControlFileDataPtr);
@@ -371,7 +265,9 @@ get_controlfile(const char *DataDir)
 	/*
 	 * We don't check the CRC here as we're potentially checking a pg_control
 	 * file from a different PostgreSQL version to the one repmgr was compiled
-	 * against.
+	 * against. However we're only interested in the first few fields, which
+	 * should be constant across supported versions
+	 *
 	 */
 
 	return control_file_info;

controldata.h

@@ -1,6 +1,6 @@
 /*
  * controldata.h
- * Copyright (c) 2ndQuadrant, 2010-2019
+ * Copyright (c) 2ndQuadrant, 2010-2018
  *
  * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
@@ -12,7 +12,6 @@
 #include "postgres_fe.h"
 #include "catalog/pg_control.h"
 
-#define MAX_VERSION_STRING 24
 /*
  * A simplified representation of pg_control containing only those fields
  * required by repmgr.
@@ -24,9 +23,6 @@ typedef struct
 	DBState		state;
 	XLogRecPtr	checkPoint;
 	uint32		data_checksum_version;
-	TimeLineID	timeline;
-	TimeLineID	minRecoveryPointTLI;
-	XLogRecPtr	minRecoveryPoint;
 } ControlFileInfo;
 
 
@@ -138,11 +134,13 @@ typedef struct ControlFileData93
 
 
 /*
- * Following field added since 9.3:
+ * Following fields added since 9.3:
  *
  * 	int			max_worker_processes;
+ *  int			max_prepared_xacts;
+ *  int			max_locks_per_xact;
+ *
  */
-
 typedef struct ControlFileData94
 {
 	uint64		system_identifier;
@@ -333,80 +331,11 @@ typedef struct ControlFileData11
 } ControlFileData11;
 
 
-/*
- * Following field added in Pg12:
- *
- *   int max_wal_senders;
- *
- * Following fields removed:
- *
- *   uint32 nextXidEpoch;
- *   TransactionId nextXid;
- *
- * and replaced by:
- *
- *   FullTransactionId nextFullXid;
- */
 
-typedef struct ControlFileData12
-{
-	uint64		system_identifier;
-
-	uint32		pg_control_version; /* PG_CONTROL_VERSION */
-	uint32		catalog_version_no; /* see catversion.h */
-
-	DBState		state;			/* see enum above */
-	pg_time_t	time;			/* time stamp of last pg_control update */
-	XLogRecPtr	checkPoint;		/* last check point record ptr */
-
-	CheckPoint	checkPointCopy; /* copy of last check point record */
-
-	XLogRecPtr	unloggedLSN;	/* current fake LSN value, for unlogged rels */
-
-	XLogRecPtr	minRecoveryPoint;
-	TimeLineID	minRecoveryPointTLI;
-	XLogRecPtr	backupStartPoint;
-	XLogRecPtr	backupEndPoint;
-	bool		backupEndRequired;
-
-	int			wal_level;
-	bool		wal_log_hints;
-	int			MaxConnections;
-	int			max_worker_processes;
-	int			max_wal_senders;
-	int			max_prepared_xacts;
-	int			max_locks_per_xact;
-	bool		track_commit_timestamp;
-
-	uint32		maxAlign;		/* alignment requirement for tuples */
-	double		floatFormat;	/* constant 1234567.0 */
-
-	uint32		blcksz;			/* data block size for this DB */
-	uint32		relseg_size;	/* blocks per segment of large relation */
-
-	uint32		xlog_blcksz;	/* block size within WAL files */
-	uint32		xlog_seg_size;	/* size of each WAL segment */
-
-	uint32		nameDataLen;	/* catalog name field width */
-	uint32		indexMaxKeys;	/* max number of columns in an index */
-
-	uint32		toast_max_chunk_size;	/* chunk size in TOAST tables */
-	uint32		loblksize;		/* chunk size in pg_largeobject */
-
-	bool		float4ByVal;	/* float4 pass-by-value? */
-	bool		float8ByVal;	/* float8, int8, etc pass-by-value? */
-
-	uint32		data_checksum_version;
-} ControlFileData12;
-
-extern int get_pg_version(const char *data_directory, char *version_string);
 extern DBState get_db_state(const char *data_directory);
 extern const char *describe_db_state(DBState state);
 extern int	get_data_checksum_version(const char *data_directory);
 extern uint64 get_system_identifier(const char *data_directory);
 extern XLogRecPtr get_latest_checkpoint_location(const char *data_directory);
-extern TimeLineID get_timeline(const char *data_directory);
-extern TimeLineID get_min_recovery_end_timeline(const char *data_directory);
-extern XLogRecPtr get_min_recovery_location(const char *data_directory);
 
 #endif							/* _CONTROLDATA_H_ */

dbutils.h

@@ -1,7 +1,7 @@
 /*
  * dbutils.h
  *
- * Copyright (c) 2ndQuadrant, 2010-2019
+ * Copyright (c) 2ndQuadrant, 2010-2018
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,7 +20,6 @@
 #ifndef _REPMGR_DBUTILS_H_
 #define _REPMGR_DBUTILS_H_
 
-#include "access/timeline.h"
 #include "access/xlogdefs.h"
 #include "pqexpbuffer.h"
 #include "portability/instr_time.h"
@@ -29,38 +28,7 @@
 #include "strutil.h"
 #include "voting.h"
 
-#define REPMGR_NODES_COLUMNS \
-	"n.node_id, " \
-	"n.type, " \
-	"n.upstream_node_id, " \
-	"n.node_name,  " \
-	"n.conninfo, " \
-	"n.repluser, " \
-	"n.slot_name, " \
-	"n.location, " \
-	"n.priority, " \
-	"n.active, " \
-	"n.config_file, " \
-	"'' AS upstream_node_name, " \
-	"NULL AS attached "
-
-#define REPMGR_NODES_COLUMNS_WITH_UPSTREAM \
-	"n.node_id, " \
-	"n.type, " \
-	"n.upstream_node_id, " \
-	"n.node_name, " \
-	"n.conninfo, " \
-	"n.repluser, " \
-	"n.slot_name, " \
-	"n.location, " \
-	"n.priority, " \
-	"n.active, "\
-	"n.config_file, " \
-	"un.node_name AS upstream_node_name, " \
-	"NULL AS attached "
-
-
-
+#define REPMGR_NODES_COLUMNS "n.node_id, n.type, n.upstream_node_id, n.node_name, n.conninfo, n.repluser, n.slot_name, n.location, n.priority, n.active, n.config_file, '' AS upstream_node_name "
 #define BDR2_NODES_COLUMNS "node_sysid, node_timeline, node_dboid, node_name, node_local_dsn, ''"
 #define BDR3_NODES_COLUMNS "ns.node_id, 0, 0, ns.node_name, ns.interface_connstr, ns.peer_state_name"
 
@@ -111,8 +79,7 @@ typedef enum
 	NODE_STATUS_UP,
 	NODE_STATUS_SHUTTING_DOWN,
 	NODE_STATUS_DOWN,
-	NODE_STATUS_UNCLEAN_SHUTDOWN,
-	NODE_STATUS_REJECTED
+	NODE_STATUS_UNCLEAN_SHUTDOWN
 } NodeStatus;
 
 typedef enum
@@ -123,13 +90,6 @@ typedef enum
 	CONN_ERROR
 } ConnectionStatus;
 
-typedef enum
-{
-	NODE_ATTACHED_UNKNOWN = -1,
-	NODE_DETACHED,
-	NODE_ATTACHED
-} NodeAttached;
-
 typedef enum
 {
 	SLOT_UNKNOWN = -1,
@@ -145,47 +105,22 @@ typedef enum
 } BackupState;
 
 
-
 /*
  * Struct to store extension version information
  */
 
 typedef struct s_extension_versions {
 	char		default_version[8];
-	int			default_version_num;
 	char		installed_version[8];
-	int			installed_version_num;
 } t_extension_versions;
 
 #define T_EXTENSION_VERSIONS_INITIALIZER { \
 	"", \
-	UNKNOWN_SERVER_VERSION_NUM, \
 	"", \
-	UNKNOWN_SERVER_VERSION_NUM \
 }
 
-
-typedef struct
-{
-	char		current_timestamp[MAXLEN];
-	bool		in_recovery;
-	TimeLineID	timeline_id;
-	XLogRecPtr	last_wal_receive_lsn;
-	XLogRecPtr	last_wal_replay_lsn;
-	char		last_xact_replay_timestamp[MAXLEN];
-	int			replication_lag_time;
-	bool		receiving_streamed_wal;
-	bool		wal_replay_paused;
-	int			upstream_last_seen;
-	int			upstream_node_id;
-} ReplInfo;
-
 /*
- * Struct to store node information.
- *
- * The first section represents the contents of the "repmgr.nodes"
- * table; subsequent section contain information collated in
- * various contexts.
+ * Struct to store node information
  */
 typedef struct s_node_info
 {
@@ -193,8 +128,8 @@ typedef struct s_node_info
 	int			node_id;
 	int			upstream_node_id;
 	t_server_type type;
-	char		node_name[NAMEDATALEN];
-	char		upstream_node_name[NAMEDATALEN];
+	char		node_name[MAXLEN];
+	char		upstream_node_name[MAXLEN];
 	char		conninfo[MAXLEN];
 	char		repluser[NAMEDATALEN];
 	char		location[MAXLEN];
@@ -211,7 +146,7 @@ typedef struct s_node_info
 	/* for ad-hoc use e.g. when working with a list of nodes */
 	char		details[MAXLEN];
 	bool		reachable;
-	NodeAttached attached;
+	bool		attached;
 	/* various statistics */
 	int			max_wal_senders;
 	int			attached_wal_receivers;
@@ -219,8 +154,6 @@ typedef struct s_node_info
 	int			total_replication_slots;
 	int			active_replication_slots;
 	int			inactive_replication_slots;
-	/* replication info */
-	ReplInfo   *replication_info;
 } t_node_info;
 
 
@@ -245,10 +178,9 @@ typedef struct s_node_info
 	MS_NORMAL, \
 	NULL, \
 	/* for ad-hoc use e.g. when working with a list of nodes */ \
-	"", true, true,	\
+	"", true, true \
 	/* various statistics */ \
-	-1, -1, -1, -1, -1, -1,	\
-	NULL \
+	-1, -1, -1, -1, -1, -1					\
 }
 
 
@@ -361,6 +293,23 @@ typedef struct BdrNodeInfoList
 	0 \
 }
 
+typedef struct
+{
+	char		current_timestamp[MAXLEN];
+	uint64		last_wal_receive_lsn;
+	uint64		last_wal_replay_lsn;
+	char		last_xact_replay_timestamp[MAXLEN];
+	int			replication_lag_time;
+	bool		receiving_streamed_wal;
+} ReplInfo;
+
+#define T_REPLINFO_INTIALIZER { \
+	"", \
+	InvalidXLogRecPtr, \
+	InvalidXLogRecPtr, \
+	"", \
+	0 \
+}
 
 
 typedef struct
@@ -402,16 +351,16 @@ typedef struct RepmgrdInfo {
 	char pid_file[MAXLEN];
 	bool pg_running;
 	char pg_running_text[MAXLEN];
-	RecoveryType recovery_type;
 	bool running;
 	char repmgrd_running[MAXLEN];
 	bool paused;
-	bool wal_paused_pending_wal;
-	int  upstream_last_seen;
-	char upstream_last_seen_text[MAXLEN];
 } RepmgrdInfo;
 
 
+/* global variables */
+
+extern int	server_version_num;
+
 /* macros */
 
 #define is_streaming_replication(x) (x == PRIMARY || x == STANDBY)
@@ -452,7 +401,6 @@ void		param_set_ine(t_conninfo_param_list *param_list, const char *param, const
 char	   *param_get(t_conninfo_param_list *param_list, const char *param);
 bool		parse_conninfo_string(const char *conninfo_str, t_conninfo_param_list *param_list, char **errmsg, bool ignore_local_params);
 char	   *param_list_to_string(t_conninfo_param_list *param_list);
-char	   *normalize_conninfo_string(const char *conninfo_str);
 bool		has_passfile(void);
 
 
@@ -465,35 +413,24 @@ bool		rollback_transaction(PGconn *conn);
 bool		set_config(PGconn *conn, const char *config_param, const char *config_value);
 bool		set_config_bool(PGconn *conn, const char *config_param, bool state);
 int		    guc_set(PGconn *conn, const char *parameter, const char *op, const char *value);
+int			guc_set_typed(PGconn *conn, const char *parameter, const char *op, const char *value, const char *datatype);
 bool		get_pg_setting(PGconn *conn, const char *setting, char *output);
-bool		get_pg_setting_int(PGconn *conn, const char *setting, int *output);
-bool		alter_system_int(PGconn *conn, const char *name, int value);
-bool		pg_reload_conf(PGconn *conn);
 
 /* server information functions */
 bool		get_cluster_size(PGconn *conn, char *size);
-int			get_server_version(PGconn *conn, char *server_version_buf);
-
+int			get_server_version(PGconn *conn, char *server_version);
 RecoveryType get_recovery_type(PGconn *conn);
 int			get_primary_node_id(PGconn *conn);
 int			get_ready_archive_files(PGconn *conn, const char *data_directory);
 bool		identify_system(PGconn *repl_conn, t_system_identification *identification);
-uint64		system_identifier(PGconn *conn);
-TimeLineHistoryEntry *get_timeline_history(PGconn *repl_conn, TimeLineID tli);
-
-/* repmgrd shared memory functions */
 bool		repmgrd_set_local_node_id(PGconn *conn, int local_node_id);
 int			repmgrd_get_local_node_id(PGconn *conn);
-bool		repmgrd_check_local_node_id(PGconn *conn);
 BackupState	server_in_exclusive_backup_mode(PGconn *conn);
 void		repmgrd_set_pid(PGconn *conn, pid_t repmgrd_pid, const char *pidfile);
 pid_t		repmgrd_get_pid(PGconn *conn);
 bool		repmgrd_is_running(PGconn *conn);
 bool		repmgrd_is_paused(PGconn *conn);
 bool		repmgrd_pause(PGconn *conn, bool pause);
-pid_t		get_wal_receiver_pid(PGconn *conn);
-int			repmgrd_get_upstream_node_id(PGconn *conn);
-bool		repmgrd_set_upstream_node_id(PGconn *conn, int node_id);
 
 /* extension functions */
 ExtensionStatus get_repmgr_extension_status(PGconn *conn, t_extension_versions *extversions);
@@ -501,16 +438,13 @@ ExtensionStatus get_repmgr_extension_status(PGconn *conn, t_extension_versions *
 /* node management functions */
 void		checkpoint(PGconn *conn);
 bool		vacuum_table(PGconn *conn, const char *table);
-bool		promote_standby(PGconn *conn, bool wait, int wait_seconds);
-bool		resume_wal_replay(PGconn *conn);
+
 
 /* node record functions */
 t_server_type parse_node_type(const char *type);
 const char *get_node_type_string(t_server_type type);
 
 RecordStatus get_node_record(PGconn *conn, int node_id, t_node_info *node_info);
-RecordStatus refresh_node_record(PGconn *conn, int node_id, t_node_info *node_info);
-
 RecordStatus get_node_record_with_upstream(PGconn *conn, int node_id, t_node_info *node_info);
 
 RecordStatus get_node_record_by_name(PGconn *conn, const char *node_name, t_node_info *node_info);
@@ -522,7 +456,6 @@ bool		get_primary_node_record(PGconn *conn, t_node_info *node_info);
 bool		get_all_node_records(PGconn *conn, NodeInfoList *node_list);
 void		get_downstream_node_records(PGconn *conn, int node_id, NodeInfoList *nodes);
 void		get_active_sibling_node_records(PGconn *conn, int node_id, int upstream_node_id, NodeInfoList *node_list);
-bool		get_child_nodes(PGconn *conn, int node_id, NodeInfoList *node_list);
 void		get_node_records_by_priority(PGconn *conn, NodeInfoList *node_list);
 bool		get_all_node_records_with_upstream(PGconn *conn, NodeInfoList *node_list);
 bool		get_downstream_nodes_with_missing_slot(PGconn *conn, int this_node_id, NodeInfoList *noede_list);
@@ -558,7 +491,7 @@ PGresult   *get_event_records(PGconn *conn, int node_id, const char *node_name,
 
 /* replication slot functions */
 void		create_slot_name(char *slot_name, int node_id);
-bool		create_replication_slot(PGconn *conn, char *slot_name, PQExpBufferData *error_msg);
+bool		create_replication_slot(PGconn *conn, char *slot_name, int server_version_num, PQExpBufferData *error_msg);
 bool		drop_replication_slot(PGconn *conn, char *slot_name);
 RecordStatus get_slot_record(PGconn *conn, char *slot_name, t_replication_slot *record);
 int			get_free_replication_slot_count(PGconn *conn);
@@ -569,14 +502,12 @@ bool		get_tablespace_name_by_location(PGconn *conn, const char *location, char *
 
 /* asynchronous query functions */
 bool		cancel_query(PGconn *conn, int timeout);
-int			wait_connection_availability(PGconn *conn, int timeout);
+int			wait_connection_availability(PGconn *conn, long long timeout);
 
 /* node availability functions */
 bool		is_server_available(const char *conninfo);
-bool		is_server_available_quiet(const char *conninfo);
 bool		is_server_available_params(t_conninfo_param_list *param_list);
 ExecStatusType	connection_ping(PGconn *conn);
-ExecStatusType	connection_ping_reconnect(PGconn *conn);
 
 /* monitoring functions  */
 void
@@ -607,19 +538,12 @@ bool		get_new_primary(PGconn *conn, int *primary_node_id);
 void		reset_voting_status(PGconn *conn);
 
 /* replication status functions */
-XLogRecPtr	get_primary_current_lsn(PGconn *conn);
-XLogRecPtr	get_node_current_lsn(PGconn *conn);
+XLogRecPtr	get_current_wal_lsn(PGconn *conn);
 XLogRecPtr	get_last_wal_receive_location(PGconn *conn);
-void		init_replication_info(ReplInfo *replication_info);
-bool		get_replication_info(PGconn *conn, t_server_type node_type, ReplInfo *replication_info);
+bool		get_replication_info(PGconn *conn, ReplInfo *replication_info);
 int			get_replication_lag_seconds(PGconn *conn);
-TimeLineID	get_node_timeline(PGconn *conn);
-void		get_node_replication_stats(PGconn *conn, t_node_info *node_info);
-NodeAttached is_downstream_node_attached(PGconn *conn, char *node_name);
-void		set_upstream_last_seen(PGconn *conn, int upstream_node_id);
-int			get_upstream_last_seen(PGconn *conn, t_server_type node_type);
-
-bool		is_wal_replay_paused(PGconn *conn, bool check_pending_wal);
+void		get_node_replication_stats(PGconn *conn, int server_version_num, t_node_info *node_info);
+bool		is_downstream_node_attached(PGconn *conn, char *node_name);
 
 /* BDR functions */
 int			get_bdr_version_num(void);

dirutil.c

@@ -3,7 +3,7 @@
  * dirmod.c
  *	  directory handling functions
  *
- * Copyright (c) 2ndQuadrant, 2010-2019
+ * Copyright (c) 2ndQuadrant, 2010-2018
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -50,7 +50,7 @@ typedef long pgpid_t;
  * and tablespace directories.
  */
 DataDirState
-check_dir(const char *path)
+check_dir(char *path)
 {
 	DIR		   *chkdir = NULL;
 	struct dirent *file = NULL;
@@ -91,17 +91,12 @@ check_dir(const char *path)
  * Create directory with error log message when failing
  */
 bool
-create_dir(const char *path)
+create_dir(char *path)
 {
-	char create_dir_path[MAXPGPATH];
-
-	/* mkdir_p() may modify the supplied path */
-	strncpy(create_dir_path, path, MAXPGPATH);
-
-	if (mkdir_p(create_dir_path, 0700) == 0)
+	if (mkdir_p(path, 0700) == 0)
 		return true;
 
-	log_error(_("unable to create directory \"%s\""), create_dir_path);
+	log_error(_("unable to create directory \"%s\""), path);
 	log_detail("%s", strerror(errno));
 
 	return false;
@@ -109,12 +104,13 @@ create_dir(const char *path)
 
 
 bool
-set_dir_permissions(const char *path)
+set_dir_permissions(char *path)
 {
 	return (chmod(path, 0700) != 0) ? false : true;
 }
 
 
+
 /* function from initdb.c */
 /* source adapted from FreeBSD /src/bin/mkdir/mkdir.c */
 
@@ -202,9 +198,9 @@ mkdir_p(char *path, mode_t omode)
 
 
 bool
-is_pg_dir(const char *path)
+is_pg_dir(char *path)
 {
-	char		dirpath[MAXPGPATH] = "";
+	char		dirpath[MAXPGPATH];
 	struct stat sb;
 
 	/* test pgdata */
@@ -227,7 +223,7 @@ is_pg_dir(const char *path)
  * any further useful progress can be made.
  */
 PgDirState
-is_pg_running(const char *path)
+is_pg_running(char *path)
 {
 	long		pid;
 	FILE	   *pidf;
@@ -276,8 +272,6 @@ is_pg_running(const char *path)
 			log_warning(_("invalid data in PostgreSQL PID file \"%s\""), path);
 		}
 
-		fclose(pidf);
-
 		return PG_DIR_NOT_RUNNING;
 	}
 
@@ -297,7 +291,7 @@ is_pg_running(const char *path)
 
 
 bool
-create_pg_dir(const char *path, bool force)
+create_pg_dir(char *path, bool force)
 {
 	/* Check this directory can be used as a PGDATA dir */
 	switch (check_dir(path))
@@ -336,15 +330,6 @@ create_pg_dir(const char *path, bool force)
 				{
 					log_notice(_("-F/--force provided - deleting existing data directory \"%s\""), path);
 					nftw(path, unlink_dir_callback, 64, FTW_DEPTH | FTW_PHYS);
-
-					/* recreate the directory ourselves to ensure permissions are correct */
-					if (!create_dir(path))
-					{
-						log_error(_("unable to create directory \"%s\"..."),
-								  path);
-						return false;
-					}
-
 					return true;
 				}
 
@@ -356,24 +341,14 @@ create_pg_dir(const char *path, bool force)
 				{
 					log_notice(_("deleting existing directory \"%s\""), path);
 					nftw(path, unlink_dir_callback, 64, FTW_DEPTH | FTW_PHYS);
-
-					/* recreate the directory ourselves to ensure permissions are correct */
-					if (!create_dir(path))
-					{
-						log_error(_("unable to create directory \"%s\"..."),
-								  path);
-						return false;
-					}
-
 					return true;
 				}
 				return false;
 			}
 			break;
 		case DIR_ERROR:
-			log_error(_("could not access directory \"%s\"")
-					  , path);
-			log_detail("%s", strerror(errno));
+			log_error(_("could not access directory \"%s\": %s"),
+					  path, strerror(errno));
 			return false;
 	}
 
@@ -383,7 +358,7 @@ create_pg_dir(const char *path, bool force)
 
 
 int
-rmdir_recursive(const char *path)
+rmdir_recursive(char *path)
 {
 	return nftw(path, unlink_dir_callback, 64, FTW_DEPTH | FTW_PHYS);
 }

dirutil.h

@@ -1,6 +1,6 @@
 /*
  * dirutil.h
- * Copyright (c) 2ndQuadrant, 2010-2019
+ * Copyright (c) 2ndQuadrant, 2010-2018
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -35,13 +35,13 @@ typedef enum
 } PgDirState;
 
 extern int	mkdir_p(char *path, mode_t omode);
-extern bool set_dir_permissions(const char *path);
+extern bool set_dir_permissions(char *path);
 
-extern DataDirState	check_dir(const char *path);
-extern bool create_dir(const char *path);
-extern bool is_pg_dir(const char *path);
-extern PgDirState is_pg_running(const char *path);
-extern bool create_pg_dir(const char *path, bool force);
-extern int rmdir_recursive(const char *path);
+extern DataDirState	check_dir(char *path);
+extern bool create_dir(char *path);
+extern bool is_pg_dir(char *path);
+extern PgDirState is_pg_running(char *path);
+extern bool create_pg_dir(char *path, bool force);
+extern int rmdir_recursive(char *path);
 
 #endif

doc/.gitignore

@@ -1,9 +1,7 @@
 HTML.index
-bookindex.xml
+bookindex.sgml
 html-stamp
 html/
+nochunks.dsl
 repmgr.html
-version.xml
-*.fo
-*.pdf
-*.sgml
+version.sgml

doc/Makefile

@@ -1,101 +0,0 @@
-# Make "html" the default target, since that is what most people tend
-# to want to use.
-html:
-
-all: html
-
-subdir = doc
-repmgr_top_builddir = ..
-include $(repmgr_top_builddir)/Makefile.global
-
-XMLINCLUDE = --path .
-
-ifndef XMLLINT
-XMLLINT = $(missing) xmllint
-endif
-
-ifndef XSLTPROC
-XSLTPROC = $(missing) xsltproc
-endif
-
-ifndef FOP
-FOP = $(missing) fop
-endif
-
-override XSLTPROCFLAGS += --stringparam repmgr.version '$(REPMGR_VERSION)'
-
-GENERATED_XML = version.xml
-ALLXML := $(wildcard $(srcdir)/*.xml) $(GENERATED_XML)
-
-
-version.xml: $(repmgr_top_builddir)/repmgr_version.h
-	{ \
-	  echo "<!ENTITY repmgrversion \"$(REPMGR_VERSION)\">"; \
-	} > $@
-
-##
-## HTML
-##
-
-
-html: html-stamp
-
-html-stamp: stylesheet.xsl repmgr.xml $(ALLXML)
-	$(XMLLINT) $(XMLINCLUDE) --noout --valid $(word 2,$^)
-	$(XSLTPROC) $(XMLINCLUDE) $(XSLTPROCFLAGS) $(XSLTPROC_HTML_FLAGS) $(wordlist 1,2,$^)
-	cp $(srcdir)/stylesheet.css  $(srcdir)/website-docs.css html/
-	touch $@
-
-# single-page HTML
-repmgr.html: stylesheet-html-nochunk.xsl repmgr.xml $(ALLXML)
-	$(XMLLINT) $(XMLINCLUDE) --noout --valid $(word 2,$^)
-	$(XSLTPROC) $(XMLINCLUDE) $(XSLTPROCFLAGS) $(XSLTPROC_HTML_FLAGS) -o $@ $(wordlist 1,2,$^)
-
-
-zip: html
-	cp -r html repmgr-docs-$(REPMGR_VERSION)
-	zip -r repmgr-docs-$(REPMGR_VERSION).zip repmgr-docs-$(REPMGR_VERSION)
-	rm -rf repmgr-docs-$(REPMGR_VERSION)
-
-##
-## Print
-##
-
-repmgr.pdf:
-	$(error Invalid target; use repmgr-A4.pdf or repmgr-US.pdf as targets)
-
-# Standard paper size
-
-repmgr-A4.fo: stylesheet-fo.xsl repmgr.xml $(ALLXML)
-	$(XMLLINT) $(XMLINCLUDE) --noout --valid $(word 2,$^)
-	$(XSLTPROC) $(XMLINCLUDE) $(XSLTPROCFLAGS) --stringparam paper.type A4 -o $@ $(wordlist 1,2,$^)
-
-repmgr-A4.pdf: repmgr-A4.fo
-	$(FOP) -fo $< -pdf $@
-
-# North American paper size
-
-repmgr-US.fo: stylesheet-fo.xsl repmgr.xml $(ALLXML)
-	$(XMLLINT) $(XMLINCLUDE) --noout --valid $(word 2,$^)
-	$(XSLTPROC) $(XMLINCLUDE) $(XSLTPROCFLAGS) --stringparam paper.type USletter -o $@ $(wordlist 1,2,$^)
-
-repmgr-US.pdf: repmgr-US.fo
-	$(FOP) -fo $< -pdf $@
-
-
-install: html
-	@$(MKDIR_P) $(DESTDIR)$(docdir)/$(docmoduledir)/repmgr
-	@$(INSTALL_DATA) $(wildcard html/*.html) $(wildcard html/*.css) $(DESTDIR)$(docdir)/$(docmoduledir)/repmgr
-	@echo Installed docs to $(DESTDIR)$(docdir)/$(docmoduledir)/repmgr
-
-clean:
-	rm -f html-stamp
-	rm -f HTML.index $(GENERATED_XML)
-	rm -f repmgr.html
-	rm -f repmgr-A4.pdf
-	rm -f repmgr-US.pdf
-
-maintainer-clean:
-	rm -rf html
-
-.PHONY: html

doc/Makefile.in

@@ -0,0 +1,76 @@
+repmgr_subdir = doc
+repmgr_top_builddir = ..
+include $(repmgr_top_builddir)/Makefile.global
+
+ifndef JADE
+JADE = $(missing) jade
+endif
+
+SGMLINCLUDE = -D . -D ${srcdir}
+
+SPFLAGS += -wall -wno-unused-param -wno-empty -wfully-tagged
+
+JADE.html.call = $(JADE) $(JADEFLAGS) $(SPFLAGS) $(SGMLINCLUDE) $(CATALOG) -t sgml -i output-html
+
+ALLSGML := $(wildcard $(srcdir)/*.sgml)
+# to build bookindex
+ALMOSTALLSGML := $(filter-out %bookindex.sgml,$(ALLSGML))
+GENERATED_SGML = version.sgml bookindex.sgml
+
+Makefile: Makefile.in
+	cd $(repmgr_top_builddir) && ./config.status doc/Makefile
+
+all: html
+
+html: html-stamp
+
+html-stamp: repmgr.sgml $(ALLSGML) $(GENERATED_SGML) stylesheet.dsl website-docs.css
+	$(MKDIR_P) html
+	$(JADE.html.call) -d stylesheet.dsl -i include-index $<
+	cp $(srcdir)/stylesheet.css $(srcdir)/website-docs.css html/
+	touch $@
+
+repmgr.html: repmgr.sgml $(ALLSGML) $(GENERATED_SGML) stylesheet.dsl website-docs.css
+	sed '/html-index-filename/a\
+(define nochunks  #t)' <stylesheet.dsl >nochunks.dsl
+	$(JADE.html.call) -d nochunks.dsl -i include-index $< >repmgr.html
+
+version.sgml: ${repmgr_top_builddir}/repmgr_version.h
+	{ \
+	  echo "<!ENTITY repmgrversion \"$(REPMGR_VERSION)\">"; \
+	} > $@
+
+HTML.index: repmgr.sgml $(ALMOSTALLSGML) stylesheet.dsl
+	@$(MKDIR_P) html
+	$(JADE.html.call) -d stylesheet.dsl -V html-index $<
+
+website-docs.css:
+	@$(MKDIR_P) html
+	curl http://www.postgresql.org/media/css/docs.css > ${srcdir}/website-docs.css
+
+bookindex.sgml: HTML.index
+ifdef COLLATEINDEX
+	LC_ALL=C $(PERL) $(COLLATEINDEX) -f -g -i 'bookindex' -o $@ $<
+else
+	@$(missing) collateindex.pl $< $@
+endif
+
+clean:
+	rm -f html-stamp
+	rm -f HTML.index $(GENERATED_SGML)
+
+maintainer-clean:
+	rm -rf html
+	rm -rf Makefile
+
+zip: html
+	cp -r html repmgr-docs-$(REPMGR_VERSION)
+	zip -r repmgr-docs-$(REPMGR_VERSION).zip repmgr-docs-$(REPMGR_VERSION)
+	rm -rf repmgr-docs-$(REPMGR_VERSION)
+
+install: html
+	@$(MKDIR_P) $(DESTDIR)$(docdir)/$(docmoduledir)/repmgr
+	@$(INSTALL_DATA) $(wildcard html/*.html) $(wildcard html/*.css) $(DESTDIR)$(docdir)/$(docmoduledir)/repmgr
+	@echo Installed docs to $(DESTDIR)$(docdir)/$(docmoduledir)/repmgr
+
+.PHONY: html all

doc/appendix-faq.sgml

@@ -1,10 +1,9 @@
 <appendix id="appendix-faq" xreflabel="FAQ">
+ <indexterm>
+  <primary>FAQ (Frequently Asked Questions)</primary>
+ </indexterm>
 
-  <title>FAQ (Frequently Asked Questions)</title>
-
-  <indexterm>
-   <primary>FAQ (Frequently Asked Questions)</primary>
-  </indexterm>
+ <title>FAQ (Frequently Asked Questions)</title>
 
  <sect1 id="faq-general" xreflabel="General">
   <title>General</title>
@@ -20,7 +19,7 @@
      <para>
       &repmgr; 3.x builds on the improved replication facilities added
       in PostgreSQL 9.3, as well as improved automated failover support
-      via &repmgrd;, and is not compatible with PostgreSQL 9.2
+      via <application>repmgrd</application>, and is not compatible with PostgreSQL 9.2
       and earlier. We recommend upgrading to &repmgr; 4, as the &repmgr; 3.x
       series is no longer maintained.
      </para>
@@ -77,7 +76,7 @@
    <para>
     Before PostgreSQL 10, hash indexes were not WAL logged and are therefore not suitable
     for use in streaming replication in PostgreSQL 9.6 and earlier. See the
-    <ulink url="https://www.postgresql.org/docs/9.6/sql-createindex.html#AEN80279">PostgreSQL documentation</ulink>
+    <ulink url="https://www.postgresql.org/docs/9.6/static/sql-createindex.html#AEN80279">PostgreSQL documentation</ulink>
     for details.
    </para>
    <para>
@@ -97,11 +96,12 @@
    <para>
      For <emphasis>major</emphasis> version upgrades (e.g. from PostgreSQL 9.6 to PostgreSQL 10),
      the traditional approach is to "reseed" a cluster by upgrading a single
-     node with <ulink url="https://www.postgresql.org/docs/current/pgupgrade.html">pg_upgrade</ulink>
+     node with <ulink url="https://www.postgresql.org/docs/current/static/pgupgrade.html">pg_upgrade</ulink>
      and recloning standbys from this.
    </para>
    <para>
-     To minimize downtime during major upgrades from PostgreSQL 9.4 and later,
+     To minimize downtime during major upgrades, for more recent PostgreSQL
+     versions (PostgreSQL 9.4 and later),
      <ulink url="https://www.2ndquadrant.com/en/resources/pglogical/">pglogical</ulink>
      can be used to set up a parallel cluster using the newer PostgreSQL version,
      which can be kept in sync with the existing production cluster until the
@@ -126,7 +126,7 @@
   <sect2 id="faq-old-packages">
    <title>How can I obtain old versions of &repmgr; packages?</title>
    <para>
-     See appendix <xref linkend="packages-old-versions"/> for details.
+     See appendix <xref linkend="packages-old-versions"> for details.
    </para>
   </sect2>
 
@@ -136,7 +136,7 @@
       No.
     </para>
     <para>
-     &repmgr; (together with &repmgrd;) assists with
+     &repmgr; (together with <application>repmgrd</application>) assists with
      <emphasis>managing</emphasis> replication. It does not actually perform replication, which
      is part of the core PostgreSQL functionality.
     </para>
@@ -153,8 +153,8 @@
    <title>Does it matter if different &repmgr; versions are present in the replication cluster?</title>
    <para>
      Yes. If different &quot;major&quot; &repmgr; versions (e.g. 3.3.x and 4.1.x) are present,
-     &repmgr; (in particular &repmgrd;)
-     may not run, or run properly, or in the worst case (if different &repmgrd;
+     &repmgr; (in particular <application>repmgrd</application>)
+     may not run, or run properly, or in the worst case (if different <application>repmgrd</application>
      versions are running and there are differences in the failover implementation) break
      your replication cluster.
    </para>
@@ -252,8 +252,8 @@
    </para>
    <para>
     &repmgr; provides the command <command>repmgr node rejoin</command> which can
-    optionally execute <command>pg_rewind</command>; see the <xref linkend="repmgr-node-rejoin"/>
-    documentation for details, in particular the section <xref linkend="repmgr-node-rejoin-pg-rewind"/>.
+    optionally execute <command>pg_rewind</command>; see the <xref linkend="repmgr-node-rejoin">
+    documentation for details, in particular the section <xref linkend="repmgr-node-rejoin-pg-rewind">.
    </para>
    <para>
     If <command>pg_rewind</command> cannot be used, then the data directory will need
@@ -277,25 +277,25 @@
      directory in <filename>/etc</filename>?</title>
    <para>
     Use the command line option <literal>--copy-external-config-files</literal>. For more details
-    see <xref linkend="repmgr-standby-clone-config-file-copying"/>.
+    see <xref linkend="repmgr-standby-clone-config-file-copying">.
    </para>
   </sect2>
 
   <sect2 id="faq-repmgr-shared-preload-libaries-no-repmgrd" xreflabel="shared_preload_libraries without repmgrd">
     <title>Do I need to include <literal>shared_preload_libraries = 'repmgr'</literal>
-      in <filename>postgresql.conf</filename> if I'm not using &repmgrd;?</title>
+      in <filename>postgresql.conf</filename> if I'm not using <application>repmgrd</application>?</title>
    <para>
-    No, the <literal>repmgr</literal> shared library is only needed when running &repmgrd;.
-    If you later decide to run &repmgrd;, you just need to add
+    No, the <literal>repmgr</literal> shared library is only needed when running <application>repmgrd</application>.
+    If you later decide to run <application>repmgrd</application>, you just need to add
     <literal>shared_preload_libraries = 'repmgr'</literal> and restart PostgreSQL.
    </para>
   </sect2>
 
   <sect2 id="faq-repmgr-permissions" xreflabel="Replication permission problems">
    <title>I've provided replication permission for the <literal>repmgr</literal> user in <filename>pg_hba.conf</filename>
-     but <command>repmgr</command>/&repmgrd; complains it can't connect to the server... Why?</title>
+     but <command>repmgr</command>/<application>repmgrd</application> complains it can't connect to the server... Why?</title>
    <para>
-    <command>repmgr</command> and &repmgrd; need to be able to connect to the repmgr database
+    <command>repmgr</command> and <application>repmgrd</application> need to be able to connect to the repmgr database
     with a normal connection to query metadata. The <literal>replication</literal> connection
     permission is for PostgreSQL's streaming replication (and doesn't  necessarily need to be the <literal>repmgr</literal> user).
    </para>
@@ -318,7 +318,7 @@
    <para>
      Provide the option <literal>--waldir</literal>  (<literal>--xlogdir</literal> in PostgreSQL 9.6
      and earlier) with the absolute path to the WAL directory in <varname>pg_basebackup_options</varname>.
-     For more details see <xref linkend="cloning-advanced-pg-basebackup-options"/>.
+     For more details see <xref linkend="cloning-advanced-pg-basebackup-options">.
    </para>
   </sect2>
 
@@ -350,7 +350,7 @@
  </sect1>
 
  <sect1 id="faq-repmgrd" xreflabel="repmgrd">
-  <title>&repmgrd;</title>
+  <title><application>repmgrd</application></title>
 
 
   <sect2 id="faq-repmgrd-prevent-promotion" xreflabel="Prevent standby from being promoted to primary">
@@ -366,12 +366,12 @@
   </sect2>
 
   <sect2 id="faq-repmgrd-delayed-standby" xreflabel="Delayed standby support">
-   <title>Does &repmgrd; support delayed standbys?</title>
+   <title>Does <application>repmgrd</application> support delayed standbys?</title>
    <para>
-    &repmgrd; can monitor delayed standbys - those set up with
+    <application>repmgrd</application> can monitor delayed standbys - those set up with
     <varname>recovery_min_apply_delay</varname> set to a non-zero value
     in <filename>recovery.conf</filename> - but as it's not currently possible
-    to directly examine the value applied to the standby, &repmgrd;
+    to directly examine the value applied to the standby, <application>repmgrd</application>
     may not be able to properly evaluate the node as a promotion candidate.
    </para>
    <para>
@@ -380,25 +380,25 @@
     <filename>repmgr.conf</filename>.
    </para>
    <para>
-    Note that after registering a delayed standby, &repmgrd; will only start
+    Note that after registering a delayed standby, <application>repmgrd</application> will only start
     once the metadata added in the primary node has been replicated.
    </para>
   </sect2>
 
   <sect2 id="faq-repmgrd-logfile-rotate" xreflabel="repmgrd logfile rotation">
-   <title>How can I get &repmgrd; to rotate its logfile?</title>
+   <title>How can I get <application>repmgrd</application> to rotate its logfile?</title>
    <para>
-     Configure your system's <literal>logrotate</literal> service to do this; see <xref linkend="repmgrd-log-rotation"/>.
+     Configure your system's <literal>logrotate</literal> service to do this; see <xref linkend="repmgrd-log-rotation">.
    </para>
 
   </sect2>
 
   <sect2 id="faq-repmgrd-recloned-no-start" xreflabel="repmgrd not restarting after node cloned">
-   <title>I've recloned a failed primary as a standby, but &repmgrd; refuses to start?</title>
+   <title>I've recloned a failed primary as a standby, but <application>repmgrd</application> refuses to start?</title>
    <para>
     Check you registered the standby after recloning. If unregistered, the standby
     cannot be considered as a promotion candidate even if <varname>failover</varname> is set to
-    <literal>automatic</literal>, which is probably not what you want. &repmgrd; will start if
+    <literal>automatic</literal>, which is probably not what you want. <application>repmgrd</application> will start if
     <varname>failover</varname> is set to <literal>manual</literal> so the node's replication status can still
   be monitored, if desired.
    </para>
@@ -406,24 +406,24 @@
 
   <sect2 id="faq-repmgrd-pg-bindir" xreflabel="repmgrd does not apply pg_bindir to promote_command or follow_command">
     <title>
-      &repmgrd; ignores pg_bindir when executing <varname>promote_command</varname> or <varname>follow_command</varname>
+      <application>repmgrd</application> ignores pg_bindir when executing <varname>promote_command</varname> or <varname>follow_command</varname>
     </title>
     <para>
       <varname>promote_command</varname> or <varname>follow_command</varname> can be user-defined scripts,
       so &repmgr; will not apply <option>pg_bindir</option> even if excuting &repmgr;. Always provide the full
-      path; see <xref linkend="repmgrd-automatic-failover-configuration"/> for more details.
+      path; see <xref linkend="repmgrd-automatic-failover-configuration"> for more details.
     </para>
   </sect2>
 
   <sect2 id="faq-repmgrd-startup-no-upstream" xreflabel="repmgrd does not start if upstream node is not running">
     <title>
-      &repmgrd; aborts startup with the error "<literal>upstream node must be running before repmgrd can start</literal>"
+      <application>repmgrd</application> aborts startup with the error "<literal>upstream node must be running before repmgrd can start</literal>"
     </title>
     <para>
-      &repmgrd; does this to avoid starting up on a replication cluster
-      which is not in a healthy state. If the upstream is unavailable, &repmgrd;
+      <application>repmgrd</application> does this to avoid starting up on a replication cluster
+      which is not in a healthy state. If the upstream is unavailable, <application>repmgrd</application>
       may initiate a failover immediately after starting up, which could have unintended side-effects,
-      particularly if &repmgrd; is not running on other nodes.
+      particularly if <application>repmgrd</application> is not running on other nodes.
     </para>
     <para>
       In particular, it's possible that the node's local copy of the <literal>repmgr.nodes</literal> copy
@@ -431,7 +431,7 @@
     </para>
     <para>
       The onus is therefore on the adminstrator to manually set the cluster to a stable, healthy state before
-      starting &repmgrd;.
+      starting <application>repmgrd</application>.
     </para>
   </sect2>
 

doc/appendix-packages.sgml

@@ -1,11 +1,9 @@
 <appendix id="appendix-packages" xreflabel="Package details">
-
-  <title>&repmgr; package details</title>
-
   <indexterm>
     <primary>packages</primary>
   </indexterm>
 
+  <title>&repmgr; package details</title>
   <para>
     This section provides technical details about various &repmgr; binary
     packages, such as location of the installed binaries and
@@ -295,7 +293,7 @@
             </row>
             <row>
               <entry>Repository documentation:</entry>
-              <entry><ulink url="https://wiki.postgresql.org/wiki/Apt">https://wiki.postgresql.org/wiki/Apt</ulink></entry>
+              <entry><ulink url="https://wiki.postgresql.org/wiki/Apt)">https://wiki.postgresql.org/wiki/Apt)</ulink></entry>
             </row>
           </tbody>
         </tgroup>
@@ -311,8 +309,8 @@
         version number for your installation.
       </para>
       <para>
-        See also <xref linkend="repmgrd-configuration-debian-ubuntu"/> for some specifics related
-        to configuring the &repmgrd; daemon.
+        See also <xref linkend="repmgrd-configuration-debian-ubuntu"> for some specifics related
+        to configuring the <application>repmgrd</application> daemon.
       </para>
 
       <table id="debian-9-packages">
@@ -458,21 +456,14 @@ repmgr96-4.1.1-0.0git320.g5113ab0.1.el7.x86_64.rpm</programlisting>
 
   <sect1 id="packages-old-versions" xreflabel="Installing old package versions">
     <title>Installing old package versions</title>
-
     <indexterm>
       <primary>old packages</primary>
     </indexterm>
-
     <indexterm>
       <primary>packages</primary>
       <secondary>old versions</secondary>
     </indexterm>
 
-    <indexterm>
-      <primary>installation</primary>
-      <secondary>old package versions</secondary>
-    </indexterm>
-
     <sect2 id="packages-old-versions-debian" xreflabel="old Debian package versions">
       <title>Debian/Ubuntu</title>
       <para>
@@ -483,12 +474,34 @@ repmgr96-4.1.1-0.0git320.g5113ab0.1.el7.x86_64.rpm</programlisting>
 
     <sect2 id="packages-old-versions-rhel-centos" xreflabel="old RHEL/CentOS package versions">
       <title>RHEL/CentOS</title>
+      <para>
+        Old RPM packages (<literal>3.2</literal> and later) can be retrieved from the
+        (deprecated) 2ndQuadrant repository at
+        <ulink url="http://packages.2ndquadrant.com/">http://packages.2ndquadrant.com/</ulink>
+        by installing the appropriate repository RPM:
+      </para>
+
+      <itemizedlist spacing="compact" mark="bullet">
+
+        <listitem>
+          <simpara>
+            <ulink url="http://packages.2ndquadrant.com/repmgr/yum-repo-rpms/repmgr-fedora-1.0-1.noarch.rpm">http://packages.2ndquadrant.com/repmgr/yum-repo-rpms/repmgr-fedora-1.0-1.noarch.rpm</ulink>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <ulink url="http://packages.2ndquadrant.com/repmgr/yum-repo-rpms/repmgr-rhel-1.0-1.noarch.rpm">http://packages.2ndquadrant.com/repmgr/yum-repo-rpms/repmgr-rhel-1.0-1.noarch.rpm</ulink>
+          </simpara>
+        </listitem>
+
+      </itemizedlist>
 
       <para>
         Old versions can be located with e.g.:
         <programlisting>
           yum --showduplicates list repmgr96</programlisting>
-        (substitute the appropriate package name; see <xref linkend="packages-centos"/>) and installed with:
+        (substitute the appropriate package name; see <xref linkend="packages-centos">) and installed with:
         <programlisting>
           yum install {package_name}-{version}</programlisting>
         where <literal>{package_name}</literal> is the base package name (e.g. <literal>repmgr96</literal>)
@@ -500,32 +513,6 @@ repmgr96-4.1.1-0.0git320.g5113ab0.1.el7.x86_64.rpm</programlisting>
           yum install repmgr96-4.0.6-1.rhel6</programlisting>
       </para>
 
-      <sect3 id="packages-old-versions-rhel-centos-repmgr3">
-        <title>repmgr 3 packages</title>
-        <para>
-          Old &repmgr; 3 RPM packages (<literal>3.2</literal> and later) can be retrieved from the
-          (deprecated) 2ndQuadrant repository at
-          <ulink url="http://packages.2ndquadrant.com/repmgr/yum/">http://packages.2ndquadrant.com/repmgr/yum/</ulink>
-          by installing the appropriate repository RPM:
-        </para>
-
-        <itemizedlist spacing="compact" mark="bullet">
-
-          <listitem>
-            <simpara>
-              <ulink url="http://packages.2ndquadrant.com/repmgr/yum-repo-rpms/repmgr-fedora-1.0-1.noarch.rpm">http://packages.2ndquadrant.com/repmgr/yum-repo-rpms/repmgr-fedora-1.0-1.noarch.rpm</ulink>
-            </simpara>
-          </listitem>
-
-          <listitem>
-            <simpara>
-              <ulink url="http://packages.2ndquadrant.com/repmgr/yum-repo-rpms/repmgr-rhel-1.0-1.noarch.rpm">http://packages.2ndquadrant.com/repmgr/yum-repo-rpms/repmgr-rhel-1.0-1.noarch.rpm</ulink>
-            </simpara>
-          </listitem>
-
-        </itemizedlist>
-      </sect3>
-
     </sect2>
   </sect1>
 
@@ -552,13 +539,13 @@ repmgr96-4.1.1-0.0git320.g5113ab0.1.el7.x86_64.rpm</programlisting>
 		char		package_conf_file[MAXPGPATH] = "";</programlisting>
         </para>
         <para>
-          See also: <xref linkend="configuration-file"/>
+          See also: <xref linkend="configuration-file">
         </para>
       </listitem>
 
       <listitem>
         <para>
-          PID file location: the default &repmgrd; PID file
+          PID file location: the default <application>repmgrd</application> PID file
           location can be hard-coded by patching <varname>package_pid_file</varname>
           in <filename>repmgrd.c</filename>:
           <programlisting>
@@ -566,7 +553,7 @@ repmgr96-4.1.1-0.0git320.g5113ab0.1.el7.x86_64.rpm</programlisting>
 		char		package_pid_file[MAXPGPATH] = "";</programlisting>
         </para>
         <para>
-          See also: <xref linkend="repmgrd-pid-file"/>
+          See also: <xref linkend="repmgrd-pid-file">
         </para>
       </listitem>
 

doc/appendix-release-notes.sgml

@@ -12,557 +12,9 @@
   </para>
 
   <para>
-    See also: <xref linkend="upgrading-repmgr"/>
+    See also: <xref linkend="upgrading-repmgr">
   </para>
 
-  <sect1 id="release-4.4">
-    <title>Release 4.4</title>
-    <para><emphasis>?? June, 2019</emphasis></para>
-
-	<sect2>
-      <title>repmgr client enhancements</title>
-      <para>
-	    <itemizedlist>
-
-		  <listitem>
-            <para>
-			  <link linkend="repmgr-standby-clone"><command>repmgr standby clone</command></link>:
-			  prevent a standby from being cloned from a witness server (PostgreSQL 9.6 and later only).
-			</para>
-		  </listitem>
-
-		  <listitem>
-            <para>
-			  <link linkend="repmgr-witness-register"><command>repmgr witness register</command></link>:
-			  prevent a witness server from being registered on the replication cluster primary server
-              (PostgreSQL 9.6 and later only).
-			</para>
-            <para>
-              Registering a witness on the primary node would defeat the purpose of having a witness server,
-              which is intended to remain running even if the cluster's primary goes down.
-            </para>
-		  </listitem>
-
-          <listitem>
-            <para>
-              &repmgr;: when executing <link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link>,
-              if <option>--siblings-follow</option> is not supplied, list all nodes which repmgr considers
-              to be siblings (this will include the witness server, if in use), and
-              which will remain attached to the old primary.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              &repmgr;: when executing <link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link>,
-              ignore nodes which are unreachable and marked as inactive.
-              Previously it would abort if any node was unreachable,
-              as that means it was unable to check if repmgrd is running.
-            </para>
-            <para>
-              However if the node has been marked as inactive in the repmgr metadata, it's
-              reasonable to assume the node is no longer part of the replication cluster
-              and does not need to be checked.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              <link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link>
-              and <link linkend="repmgr-standby-promote"><command>repmgr standby promote</command></link>:
-              when executing with the <option>--dry-run</option> option, continue checks as far as possible
-              even if errors are encountered.
-            </para>
-          </listitem>
-
-
-          <listitem>
-            <para>
-              <link linkend="repmgr-standby-promote"><command>repmgr standby promote</command></link>:
-              add <option>--siblings-follow</option> (similar to
-              <link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link>).
-            </para>
-            <note>
-              <para>
-                If using &repmgrd;, when invoking
-                <command>repmgr standby promote</command> (either directly via
-                the <option>promote_command</option>, or in a script called
-                via <option>promote_command</option>), <option>--siblings-follow</option>
-                <emphasis>must not</emphasis> be included as a
-                command line option for <link linkend="repmgr-standby-promote"><command>repmgr standby promote</command></link>.
-              </para>
-            </note>
-          </listitem>
-
-		  <listitem>
-            <para>
-			  <link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link>:
-			  add <option>--repmgrd-force-unpause</option> to unpause all &repmgrd; instances after executing a switchover.
-			  This will ensure that	any &repmgrd; instances which were paused before the switchover will be
-			  unpaused.
-			</para>
-		  </listitem>
-
-          <listitem>
-            <para>
-              <link linkend="repmgr-daemon-status"><command>repmgr daemon status</command></link>:
-			  make output similar to that of
-			  <link linkend="repmgr-cluster-show"><command>repmgr cluster show</command></link>
-			  for consistency and to make it easier to identify nodes not in the expected
-			  state.
-            </para>
-          </listitem>
-
-		  <listitem>
-            <para>
-              <link linkend="repmgr-cluster-show"><command>repmgr cluster show</command></link>:
-			  display each node's timeline ID (PostgreSQL 9.6 and later only).
-			</para>
-		  </listitem>
-
-		  <listitem>
-            <para>
-              <link linkend="repmgr-cluster-show"><command>repmgr cluster show</command></link>
-			  and <link linkend="repmgr-daemon-status"><command>repmgr daemon status</command></link>:
-			  show the upstream node name as reported by each individual node - this helps visualise
-			  situations where the cluster is in an unexpected state, and provide a better idea of the
-			  actual cluster state.
-			</para>
-			<para>
-			  For example, if a cluster has divided somehow and a set of nodes are
-			  following a new primary, when running either of these commands, &repmgr;
-			  will now show the name of the primary those nodes are actually
-			  following, rather than the now outdated node name recorded
-			  on the other side of the &quot;split&quot;. A warning will also be issued
-			  about the unexpected situation.
-            </para>
-          </listitem>
-
-		  <listitem>
-            <para>
-              <link linkend="repmgr-cluster-show"><command>repmgr cluster show</command></link>
-			  and <link linkend="repmgr-daemon-status"><command>repmgr daemon status</command></link>:
-			  check if a node is attached to its advertised upstream node, and issue a
-			  warning if the node is not attached.
-			</para>
-		  </listitem>
-
-		</itemizedlist>
-	  </para>
-    </sect2>
-
-    <sect2>
-      <title>repmgrd enhancements</title>
-      <para>
-        <itemizedlist>
-
-          <listitem>
-            <para>
-              On the primary node, &repmgrd; is now able to monitor standby connections and,
-              if the number of nodes connected falls below a certain (configurable) value,
-              execute a custom script.
-            </para>
-            <para>
-              This provided an additional method for fencing an isolated primary node, and/or taking
-              other action if one or more standys become disconnected.
-            </para>
-            <para>
-              See section <link linkend="repmgrd-primary-child-disconnection">Monitoring standby disconnections on the primary node</link>
-              for more details.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              In a failover situation, &repmgrd; nodes on the standbys of the failed primary
-              are now able confirm among themselves that none can still see the primary
-              before continuing with the failover.
-            </para>
-            <para>
-              The <filename>repmgr.conf</filename> option <option>primary_visibility_consensus</option> must
-              be set to <literal>true</literal> to enable this functionality.
-            </para>
-            <para>
-              See section <xref linkend="repmgrd-primary-visibility-consensus"/>
-              for more details.
-            </para>
-          </listitem>
-        </itemizedlist>
-      </para>
-    </sect2>
-
-    <sect2>
-      <title>Bug fixes</title>
-      <para>
-        <itemizedlist>
-          <listitem>
-            <para>
-              Ensure BDR2-specific functionality cannot be used on BDR3 and later.
-            </para>
-            <para>
-              The BDR support present in &repmgr; is for specific BDR2 use cases.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              &repmgr;: when executing <link linkend="repmgr-standby-clone"><command>repmgr standby clone</command></link>
-              in <option>--dry-run</option> mode, ensure provision of the <option>--force</option> option
-              does not result in an existing data directory being modified in any way.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              &repmgr;: when executing <link linkend="repmgr-primary-register"><command>repmgr primary register</command></link>
-              with the <option>--force</option> option, if another primary record exists but the associated node is
-              unreachable (or running as a standby), set that node's record to inactive to enable the current node
-              to be registered as a primary.
-            </para>
-          </listitem>
-
-		  <listitem>
-			<para>
-              &repmgr;: when executing <link linkend="repmgr-standby-clone"><command>repmgr standby clone</command></link>
-              with the <option>--upstream-conninfo</option>, ensure that <varname>application_name</varname>
-              is set correctly in <varname>primary_conninfo</varname>.
-            </para>
-          </listitem>
-
-		  <listitem>
-			<para>
-              &repmgr;: when executing <link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link>,
-              don't abort if one or more nodes are not reachable <emphasis>and</emphasis>
-			  they are marked as inactive.
-			</para>
-		  </listitem>
-
-          <listitem>
-            <para>
-              &repmgr;: canonicalize the data directory path when parsing the configuration file, so
-              the provided path matches the path PostgreSQL reports as its data directory.
-              Otherwise, if e.g. the data directory is configured with a trailing slash,
-              <link linkend="repmgr-node-check"><command>repmgr node check --data-directory-config</command></link>
-              will return a spurious error.
-            </para>
-          </listitem>
-
-		  <listitem>
-			<para>
-              &repmgrd;: fix memory leak which occurs while the monitored PostgreSQL node is <emphasis>not</emphasis>
-              running.
-            </para>
-          </listitem>
-
-        </itemizedlist>
-	  </para>
-    </sect2>
-
-
-   <sect2>
-      <title>Other</title>
-      <para>
-        <itemizedlist>
-          <listitem>
-            <para>
-              The &repmgr; documentation has been converted to DocBook XML format,
-              as currently used by the main PostgreSQL project.
-              This means it can now be built against any PostgreSQL version from 9.5
-              (previously it was not possible to build the documentation against
-              PostgreSQL 10 or later), and makes it easier to provide the documentation
-              in other formats such as PDF.
-            </para>
-            <para>
-              For further details see: <xref linkend="installation-build-repmgr-docs"/>
-            </para>
-          </listitem>
-        </itemizedlist>
-      </para>
-   </sect2>
-  </sect1>
-
-
-  <sect1 id="release-4.3">
-    <title>Release 4.3</title>
-    <para><emphasis>Tue April 2, 2019</emphasis></para>
-    <para>
-      &repmgr; 4.3 is a major release.
-    </para>
-    <para>
-      For details on how to upgrade an existing &repmgr; instrallation, see
-      documentation section <link linkend="upgrading-major-version">Upgrading a major version release</link>.
-    </para>
-    <para>
-      If &repmgrd; is in use, a PostgreSQL restart <emphasis>is</emphasis> required;
-      in that case we suggest combining this &repmgr; upgrade with the next PostgreSQL
-      minor release, which will require a PostgreSQL restart in any case.
-    </para>
-
-
-	<important>
-	  <para>
-	    On Debian-based systems, including Ubuntu, if using &repmgrd;
-	    please ensure that in the file <filename>/etc/init.d/repmgrd</filename>, the parameter
-	    <varname>REPMGRD_OPTS</varname> contains &quot;<literal>--daemonize=false</literal>&quot;, e.g.:
-	    <programlisting>
-# additional options
-REPMGRD_OPTS="--daemonize=false"</programlisting>
-	  </para>
-	  <para>
-	    For further details, see <link linkend="repmgrd-configuration-debian-ubuntu">repmgrd configuration on Debian/Ubuntu</link>.
-	  </para>
-	</important>
-
-    <sect2>
-      <title>repmgr client enhancements</title>
-      <para>
-        <itemizedlist>
-
-          <listitem>
-            <para>
-              <link linkend="repmgr-standby-follow"><command>repmgr standby follow</command></link>:
-              option <option>--upstream-node-id</option> can now be used to specify another standby
-              to follow.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              <link linkend="repmgr-standby-follow"><command>repmgr standby follow</command></link>:
-              verify that it is actually possible to follow another node.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              <link linkend="repmgr-node-rejoin"><command>repmgr node rejoin</command></link>:
-              verify that it is actually possible to attach the node to the current primary.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              New commands <link linkend="repmgr-daemon-start"><command>repmgr daemon start</command></link> and
-              <link linkend="repmgr-daemon-stop"><command>repmgr daemon stop</command></link>:
-              these provide a standardized way of starting and stopping &repmgrd;.
-              GitHub #528.
-            </para>
-            <note>
-              <para>
-                These commands require the configuration file settings
-                <varname>repmgrd_service_start_command</varname> and <varname>repmgrd_service_stop_command</varname>
-                in <filename>repmgr.conf</filename> to be set.
-              </para>
-            </note>
-          </listitem>
-
-          <listitem>
-            <para>
-              <link linkend="repmgr-daemon-status"><command>repmgr daemon status</command></link>
-              additionally displays the node priority and the interval (in seconds) since the
-              &repmgrd; instance last verified its upstream node was available.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              Add <option>--compact</option> option to <command><link linkend="repmgr-cluster-show">repmgr cluster show</link></command> (GitHub #521).
-            </para>
-            <para>
-              This makes it easier to copy the output into emails, chats etc. as a compact table.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              <command><link linkend="repmgr-cluster-show">repmgr cluster show</link></command>:
-	      differentiate between unreachable nodes and nodes which are running but rejecting connections.
-            </para>
-            <para>
-	      This makes it possible to see whether a node is unreachable at network level,
-	      or if it is running but rejecting connections for some reason.
-            </para>
-          </listitem>
-
-
-          <listitem>
-            <para>
-              Add <option>--dry-run</option> to <command><link linkend="repmgr-standby-promote">repmgr standby promote</link></command> (GitHub #522).
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              <command>repmgr --version-number</command> outputs the &quot;raw&quot;
-              repmgr version number (e.g. <literal>40300</literal>). This is intended
-              for use by scripts etc. requiring an easily parseable representation
-              of the &repmgr; version.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              <link linkend="repmgr-node-check"><command>repmgr node check --data-directory-config</command></link>
-              option added; this is to confirm &repmgr; is correctly configured. GitHub #523.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              Add check to <link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link>
-              to ensure the data directory on the demotion candidate is configured correctly in <filename>repmgr.conf</filename>.
-              This is to ensure that &repmgr;, when remotely executed on the demotion candidate, can correctly verify
-              that PostgreSQL on the demotion candidate was shut down cleanly. GitHub #523.
-            </para>
-          </listitem>
-
-
-       </itemizedlist>
-      </para>
-    </sect2>
-
-    <sect2>
-      <title>repmgrd enhancements</title>
-      <para>
-        <itemizedlist>
-
-          <listitem>
-            <para>
-              &repmgrd; will no longer consider nodes where &repmgrd;
-			  is not running as promotion candidates.
-            </para>
-            <para>
-              Previously, if &repmgrd; was not running on a node, but
-              that node qualified as the promotion candidate, it would never be promoted due to
-              the absence of a running &repmgrd;.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              Add option <option>connection_check_type</option> to enable selection of the method
-              &repmgrd; uses to determine whether the upstream node is available.
-            </para>
-            <para>
-              Possible values are <literal>ping</literal> (default; uses <command>PQping()</command> to
-              determine server availability), <literal>connection</literal> (attempst to make a new connection to
-              the upstream node), and <literal>query</literal> (determines server availability
-              by executing an SQL statement on the node via the existing connection).
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              New configuration option <link linkend="repmgrd-failover-validation"><option>failover_validation_command</option></link>
-              to allow an external mechanism to validate the failover decision made by &repmgrd;.
-            </para>
-          </listitem>
-
-         <listitem>
-            <para>
-              New configuration option <link linkend="repmgrd-standby-disconnection-on-failover"><option>standby_disconnect_on_failover</option></link>
-              to force standbys to disconnect their WAL receivers before making a failover decision.
-            </para>
-          </listitem>
-
-         <listitem>
-            <para>
-			  In a failover situation, &repmgrd; will not attempt to promote a
-			  node if another primary has already appeared (e.g. by being promoted manually).
-			  GitHub #420.
-			</para>
-          </listitem>
-
-		</itemizedlist>
-	  </para>
-	</sect2>
-
-    <sect2>
-      <title>Bug fixes</title>
-      <para>
-        <itemizedlist>
-
-          <listitem>
-            <para>
-              <command><link linkend="repmgr-cluster-show">repmgr cluster show</link></command>:
-	          fix display of node IDs with multiple digits.
-            </para>
-	      </listitem>
-
-          <listitem>
-            <para>
-              ensure <command><link linkend="repmgr-primary-unregister">repmgr primary unregister</link></command>
-	          behaves correctly when executed on a witness server. GitHub #548.
-            </para>
-	      </listitem>
-
-          <listitem>
-            <para>
-              ensure <command><link linkend="repmgr-standby-register">repmgr standby register</link></command>
-	          fails when <option>--upstream-node-id</option> is the same as the local node ID.
-            </para>
-	      </listitem>
-
-          <listitem>
-            <para>
-              &repmgr;: when executing <link linkend="repmgr-standby-clone"><command>repmgr standby clone</command></link>,
-              recheck primary/upstream connection(s) after the data copy operation is complete, as these may
-              have gone away.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              &repmgr;: when executing <command><link linkend="repmgr-standby-switchover">repmgr standby switchover</link></command>,
-              prevent escaping issues with connection URIs when executing <command><link linkend="repmgr-node-rejoin">repmgr node rejoin</link></command>
-              on the demotion candidate. GitHub #525.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              &repmgr;: when executing <link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link>,
-	          verify the standby (promotion candidate) is currently attached to the primary (demotion candidate). GitHub #519.
-            </para>
-          </listitem>
-
-         <listitem>
-            <para>
-              &repmgr;: when executing <link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link>,
-              avoid a potential race condition when comparing received WAL on the standby to the primary's shutdown location,
-	          as the standby's walreceiver may not have yet flushed all received WAL to disk. GitHub #518.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              &repmgr;: when executing <command><link linkend="repmgr-witness-register">repmgr witness register</link></command>,
-              check the node to connected is actually the primary (i.e. not the witness server).  GitHub #528.
-            </para>
-          </listitem>
-
-          <listitem>
-            <para>
-              <command><link linkend="repmgr-node-check">repmgr node check</link></command>
-	          will only consider physical replication slots, as the purpose
-	          of slot checks is to warn about potential issues with
-	          streaming replication standbys which are no longer attached.
-	        </para>
-	      </listitem>
-
-          <listitem>
-            <para>
-              &repmgrd;: on a cascaded standby, don't fail over if
-              <literal>failover=manual</literal>. GitHub #531.
-            </para>
-          </listitem>
-
-        </itemizedlist>
-      </para>
-    </sect2>
-
-  </sect1>
-
   <sect1 id="release-4.2">
     <title>Release 4.2</title>
     <para><emphasis>Wed October 24, 2018</emphasis></para>
@@ -579,20 +31,6 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
       <link linkend="upgrading-major-version">Upgrading a major version release</link>.
     </para>
 
-	<important>
-	  <para>
-	    On Debian-based systems, including Ubuntu, if using &repmgrd;
-	    please ensure that the in the file <filename>/etc/init.d/repmgrd</filename>, the parameter
-	    <varname>REPMGRD_OPTS</varname> contains &quot;<literal>--daemonize=false</literal>&quot;, e.g.:
-	    <programlisting>
-# additional options
-REPMGRD_OPTS="--daemonize=false"</programlisting>
-	  </para>
-	  <para>
-	    For further details, see <link linkend="repmgrd-configuration-debian-ubuntu">repmgrd daemon configuration on Debian/Ubuntu</link>.
-	  </para>
-	</important>
-
     <sect2>
       <title>Configuration file changes</title>
       <para>
@@ -676,12 +114,12 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
 
           <listitem>
             <para>
-              &repmgrd; can now be &quot;paused&quot;, i.e. instructed
+              <application>repmgrd</application> can now be &quot;paused&quot;, i.e. instructed
               not to take any action such as a failover, even if the prerequisites for such an
               action are detected.
             </para>
             <para>
-              This removes the need to stop &repmgrd; on all nodes when
+              This removes the need to stop <application>repmgrd</application> on all nodes when
               performing a planned operation such as a switchover.
             </para>
             <para>
@@ -705,9 +143,10 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
             </para>
           </listitem>
 
+
           <listitem>
             <para>
-              &repmgrd;: fix parsing of <option>-d/--daemonize</option> option.
+              <application>repmgrd</application>: fix parsing of <option>-d/--daemonize</option> option.
             </para>
           </listitem>
 
@@ -725,8 +164,8 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
     <para>
 	  We recommend upgrading to this version as soon as possible.
 	  This release can be installed as a simple package upgrade from repmgr 4.0 ~ 4.1.0;
-      &repmgrd; (if running) should be restarted.
-      See <xref linkend="upgrading-repmgr"/> for more details.
+      <application>repmgrd</application> (if running) should be restarted.
+      See <xref linkend="upgrading-repmgr"> for more details.
 	</para>
 
     <sect2>
@@ -807,8 +246,8 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
             <para>
               Check <varname>promote_command</varname> and <varname>follow_command</varname>
               are defined when reloading configuration. These were checked on startup but
-              not reload by &repmgrd;, which made it possible to
-              make &repmgrd; with invalid values. It's unlikely
+              not reload by <application>repmgrd</application>, which made it possible to
+              make <application>repmgrd</application> with invalid values. It's unlikely
               anyone would want to do this, but we should make it impossible anyway.
               (GitHub #486).
             </para>
@@ -849,7 +288,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
 
           <listitem>
             <para>
-              &repmgrd;: fix startup on witness node when local data is stale. (GitHub #488, #489).
+              <application>repmgrd</application>: fix startup on witness node when local data is stale. (GitHub #488, #489).
             </para>
           </listitem>
 
@@ -875,7 +314,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
     <title>Release 4.1.0</title>
     <para><emphasis>Tue July 31, 2018</emphasis></para>
     <para>
-      &repmgr; 4.1.0 introduces some changes to &repmgrd;
+      &repmgr; 4.1.0 introduces some changes to <application>repmgrd</application>
       behaviour and some additional configuration parameters.
     </para>
     <para>
@@ -891,7 +330,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
           </listitem>
           <listitem>
             <para>
-              &repmgrd; must be restarted on all nodes where it is running.
+              <application>repmgrd</application> must be restarted on all nodes where it is running.
             </para>
           </listitem>
 
@@ -901,7 +340,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
        for this release (unless upgrading from repmgr 3.x).
     </para>
     <para>
-       See <xref linkend="upgrading-repmgr-extension"/> for more details.
+       See <xref linkend="upgrading-repmgr-extension"> for more details.
     </para>
 
     <para>
@@ -916,7 +355,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
       </para>
       <para>
         Coinciding with this release, the 2ndQuadrant repository structure has changed.
-        See section <xref linkend="installation-packages"/> for details, particularly
+        See section <xref linkend="installation-packages"> for details, particularly
         if you are using a RPM-based system.
       </para>
     </note>
@@ -929,7 +368,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
 
           <listitem>
             <para>
-              Default for <xref linkend="repmgr-conf-log-level"/> is now <option>INFO</option>.
+              Default for <xref linkend="repmgr-conf-log-level"> is now <option>INFO</option>.
               This produces additional informative log output, without creating excessive additional
               log file volume, and matches the setting assumed for examples in the documentation.
               (GitHub #470).
@@ -1013,14 +452,14 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
 
           <listitem>
             <para>
-              &repmgrd;: create a PID file by default
-              (GitHub #457). For details, see <xref linkend="repmgrd-pid-file"/>.
+              <application>repmgrd</application>: create a PID file by default
+              (GitHub #457). For details, see <xref linkend="repmgrd-pid-file">.
             </para>
           </listitem>
 
           <listitem>
             <para>
-              &repmgrd;: daemonize process by default.
+              <application>repmgrd</application>: daemonize process by default.
 			  In case, for whatever reason, the user does not wish to daemonize the
 			  process, provide <option>--daemonize=false</option>.
 			  (GitHub #458).
@@ -1089,7 +528,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
 	<para>
 	  We recommend upgrading to this version as soon as possible.
 	  This release can be installed as a simple package upgrade from repmgr 4.0 ~ 4.0.5;
-      &repmgrd; (if running) should be restarted. See <xref linkend="upgrading-repmgr"/>
+      <application>repmgrd</application> (if running) should be restarted. See <xref linkend="upgrading-repmgr">
       for more details.
 	</para>
 
@@ -1176,7 +615,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
 
           <listitem>
             <para>
-              &repmgrd;: ensure local node is counted as quorum member
+              <application>repmgrd</application>: ensure local node is counted as quorum member
 			  (GitHub #439)
            </para>
           </listitem>
@@ -1193,7 +632,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
     <para>
       &repmgr; 4.0.5 contains a number of usability enhancements related to
       <application>pg_rewind</application> usage, <filename>recovery.conf</filename>
-      generation and (in &repmgrd;) handling of various
+      generation and (in <application>repmgrd</application>) handling of various
       corner-case situations, as well as a number of bug fixes.
     </para>
 
@@ -1225,7 +664,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
           <listitem>
             <para>
               Add sanity check if <option>--upstream-node-id</option> not supplied when executing
-              <xref linkend="repmgr-standby-register"/> (GitHub #395).
+              <xref linkend="repmgr-standby-register"> (GitHub #395).
             </para>
           </listitem>
 
@@ -1258,7 +697,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
 
           <listitem>
             <para>
-              &repmgrd;: set <literal>connect_timeout=2</literal> (if not explicitly set)
+              <application>repmgrd</application>: set <literal>connect_timeout=2</literal> (if not explicitly set)
               when pinging a server.
            </para>
           </listitem>
@@ -1314,20 +753,20 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
 
           <listitem>
             <para>
-              &repmgrd;: handle <command>pg_ctl promote</command> timeout (GitHub #425).
+              <application>repmgrd</application>: handle <command>pg_ctl promote</command> timeout (GitHub #425).
            </para>
           </listitem>
 
           <listitem>
             <para>
-              &repmgrd;: handle failover situation with only two nodes in the primary
+              <application>repmgrd</application>: handle failover situation with only two nodes in the primary
           location, and at least one node in another location (GitHub #407).
             </para>
           </listitem>
 
           <listitem>
             <para>
-               &repmgrd;: prevent standby connection handle from going stale.
+               <application>repmgrd</application>: prevent standby connection handle from going stale.
            </para>
           </listitem>
 
@@ -1351,7 +790,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
     </para>
     <para>
       This release can be installed as a simple package upgrade from repmgr 4.0 ~ 4.0.3;
-      &repmgrd; (if running) should be restarted. See <xref linkend="upgrading-repmgr"/>
+      <application>repmgrd</application> (if running) should be restarted. See <xref linkend="upgrading-repmgr">
       for more details.
     </para>
 
@@ -1430,14 +869,14 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
 
           <listitem>
             <para>
-              &repmgrd;: improve detection of status change from primary to
+              <application>repmgrd</application>: improve detection of status change from primary to
               standby
            </para>
           </listitem>
 
           <listitem>
             <para>
-              &repmgrd;:  improve reconnection to the local node after a
+              <application>repmgrd</application>:  improve reconnection to the local node after a
               failover (previously a connection error due to the node starting up was being
               interpreted as the node being unavailable)
            </para>
@@ -1445,14 +884,14 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
 
           <listitem>
             <para>
-              &repmgrd;: when running on a witness server, correctly connect
+              <application>repmgrd</application>: when running on a witness server, correctly connect
               to new primary after a failover
            </para>
           </listitem>
 
           <listitem>
             <para>
-              &repmgrd;: add <link linkend="event-notifications">event notification</link>
+              <application>repmgrd</application>: add <link linkend="event-notifications">event notification</link>
               <literal>repmgrd_shutdown</literal> (GitHub #393)
            </para>
           </listitem>
@@ -1621,7 +1060,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
     </para>
     <para>
       This release can be installed as a simple package upgrade from &repmgr; 4.0.1 or 4.0;
-      &repmgrd; (if running) should be restarted.
+      <application>repmgrd</application> (if running) should be restarted.
     </para>
 
     <sect2>
@@ -1738,14 +1177,14 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
 
         <listitem>
           <para>
-            Fix <xref linkend="repmgr-cluster-show"/> when <literal>repmgr</literal> schema not set in search path
+            Fix <xref linkend="repmgr-cluster-show"> when <literal>repmgr</literal> schema not set in search path
             (GitHub #341)
           </para>
         </listitem>
 
         <listitem>
           <para>
-            When using <literal>--force-rewind</literal> with <xref linkend="repmgr-node-rejoin"/>
+            When using <literal>--force-rewind</literal> with <xref linkend="repmgr-node-rejoin">
             delete any replication slots copied by <application>pg_rewind</application>
             (GitHub #334)
           </para>
@@ -1801,7 +1240,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
   </note>
 
   <para>
-    For detailed instructions on upgrading from repmgr 3.x, see <xref linkend="upgrading-from-repmgr-3"/>.
+    For detailed instructions on upgrading from repmgr 3.x, see <xref linkend="upgrading-from-repmgr-3">.
   </para>
 
   <sect2>
@@ -1815,7 +1254,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
             the <command>switchover</command> process has been improved and streamlined,
             speeding up the switchover process and can also instruct other standbys
             to follow the new primary once the switchover has completed. See
-            <xref linkend="performing-switchover"/> for more details.
+             <xref linkend="performing-switchover"> for more details.
           </para>
         </listitem>
 
@@ -1833,7 +1272,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
             <emphasis>easier upgrades</emphasis>: &repmgr; is now implemented as a native
             PostgreSQL extension, which means future upgrades can be carried out by
             installing the upgraded package and issuing
-            <ulink url="https://www.postgresql.org/docs/current/sql-alterextension.html">ALTER EXTENSION repmgr UPDATE</ulink>.
+            <ulink url="https://www.postgresql.org/docs/current/static/sql-alterextension.html">ALTER EXTENSION repmgr UPDATE</ulink>.
           </para>
         </listitem>
 
@@ -1841,10 +1280,10 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
         <listitem>
           <para>
             <emphasis>improved logging output</emphasis>:
-            &repmgr; (and &repmgrd;) now provide more explicit
+            &repmgr; (and <application>repmgrd</application>) now provide more explicit
             logging output giving a better picture of what is going on. Where appropriate,
             <literal>DETAIL</literal> and <literal>HINT</literal> log lines provide additional
-            detail and suggestions for resolving problems. Additionally, &repmgrd;
+            detail and suggestions for resolving problems. Additionally, <application>repmgrd</application>
             now emits informational log lines at regular, configurable intervals
             to confirm that it's running correctly and which node(s) it's monitoring.
           </para>
@@ -1866,8 +1305,8 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
         <listitem>
           <para>
             <emphasis>monitoring and status checks</emphasis>:
-            New commands <xref linkend="repmgr-node-check"/> and
-            <xref linkend="repmgr-node-status"/> providing information
+            New commands <xref linkend="repmgr-node-check"> and
+            <xref linkend="repmgr-node-status"> providing information
             about a node's status and replication-related monitoring
             output.
           </para>
@@ -1877,7 +1316,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
         <listitem>
           <para>
             <emphasis>node rejoin</emphasis>:
-            New commands <xref linkend="repmgr-node-rejoin"/> enables a failed
+            New commands <xref linkend="repmgr-node-rejoin"> enables a failed
             primary to be rejoined to a replication cluster, optionally using
             <application>pg_rewind</application> to synchronise its data,
             (note that <application>pg_rewind</application> may not be useable
@@ -1891,11 +1330,11 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
             <emphasis>automatic failover</emphasis>:
             improved detection of node status; promotion decision based on a consensual
             model, with the promoted primary explicitly informing other standbys to
-            follow it. The &repmgrd; daemon will continue
+            follow it. The <application>repmgrd</application> daemon will continue
             functioning even if the monitored PostgreSQL instance is down, and resume
             monitoring if it reappears. Additionally, if the instance's role has changed
             (typically from a primary to a standby, e.g. following reintegration of a
-            failed primary using <xref linkend="repmgr-node-rejoin"/>) &repmgrd;
+            failed primary using <xref linkend="repmgr-node-rejoin">) <application>repmgrd</application>
             will automatically resume monitoring it as a standby.
           </para>
         </listitem>
@@ -1959,7 +1398,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
             by the configuration file option <varname>replication_user</varname>.
             The value (which defaults to the user provided in the <varname>conninfo</varname>
             string) will be stored in the &repmgr; metadata for use by
-            <xref linkend="repmgr-standby-clone"/> and <xref linkend="repmgr-standby-follow"/>.
+            <xref linkend="repmgr-standby-clone"> and <xref linkend="repmgr-standby-follow">.
         </para></listitem>
 
         <listitem><para>
@@ -1974,14 +1413,14 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
             to <varname>primary_conninfo</varname> by default; to force the inclusion
             of a password (not recommended), use the new configuration file parameter
             <varname>use_primary_conninfo_password</varname>. For details, ee section
-            <xref linkend="cloning-advanced-managing-passwords"/>.
+            <xref linkend="cloning-advanced-managing-passwords">.
         </para></listitem>
 
       </itemizedlist>
     </para>
 
     <para>
-      &repmgrd;
+      <application>repmgrd</application>
       <itemizedlist>
 
         <listitem><para>
@@ -2103,7 +1542,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
       <listitem>
         <simpara>
           new parameter <varname>log_status_interval</varname>, which causes
-          &repmgrd; to emit a status log
+          <application>repmgrd</application> to emit a status log
           line at the specified interval
         </simpara>
       </listitem>

doc/appendix-support.xml

@@ -1,99 +0,0 @@
-<appendix id="appendix-support" xreflabel="repmgr support">
-
-  <title>&repmgr; support</title>
-
-  <indexterm>
-    <primary>support</primary>
-  </indexterm>
-
-  <para>
-    <ulink url="https://2ndquadrant.com/">2ndQuadrant</ulink> provides 24x7
-    production support for &repmgr; and other PostgreSQL
-    products, including configuration assistance, installation
-    verification and training for running a robust replication cluster.
-  </para>
-  <para>
-    For further details see: <ulink url="https://2ndquadrant.com/en/support/">https://2ndquadrant.com/en/support/</ulink>
-  </para>
-
-  <para>
-    A mailing list/forum is provided via Google groups to discuss contributions or issues: <ulink url="https://groups.google.com/group/repmgr">https://groups.google.com/group/repmgr</ulink>.
-  </para>
-  <para>
-    Please report bugs and other issues to: <ulink url="https://github.com/2ndQuadrant/repmgr">https://github.com/2ndQuadrant/repmgr</ulink>.
-  </para>
-
-  <important>
-    <para>
-      Please read the <link linkend="appendix-support-reporting-issues">following section</link> before submitting questions or issue reports.
-    </para>
-  </important>
-
-  <sect1 id="appendix-support-reporting-issues" xreflabel="Reportins Issues">
-    <title>Reporting Issues</title>
-
-    <indexterm>
-      <primary>support</primary>
-      <secondary>reporting issues</secondary>
-    </indexterm>
-
-
-    <para>
-      When asking questions or reporting issues, it is extremely helpful if the following information is included:
-
-    <itemizedlist spacing="compact" mark="bullet">
-
-     <listitem>
-      <simpara>
-        &repmgr; version
-      </simpara>
-     </listitem>
-
-     <listitem>
-      <simpara>
-        How was &repmgr; installed? From source? From packages? If
-        so from which repository?
-      </simpara>
-     </listitem>
-
-     <listitem>
-      <simpara>
-        <filename>repmpgr.conf</filename> files (suitably anonymized if necessary)
-      </simpara>
-     </listitem>
-
-     <listitem>
-      <simpara>
-        Contents of the <literal>repmgr.nodes</literal> table (suitably anonymized if necessary)
-      </simpara>
-     </listitem>
-
-     <listitem>
-      <simpara>
-        PostgreSQL version
-      </simpara>
-     </listitem>
-
-    </itemizedlist>
-    </para>
-    <para>
-      If issues are encountered with a &repmgr; client command, please provide
-      the output of that command executed with the options
-      <option>-LDEBUG --verbose</option>, which will ensure &repmgr; emits
-      the maximum level of logging output.
-    </para>
-    <para>
-      If issues are encountered with &repmgrd;,
-      please provide relevant extracts from the &repmgr; log files
-      and if possible the PostgreSQL log itself. Please ensure these
-      logs do not contain any confidential data.
-    </para>
-    <para>
-      In all cases it is <emphasis>extremely</emphasis> useful to receive
-      information on how to reliably reproduce an issue with as much detail as
-      possible.
-    </para>
-
-  </sect1>
-
-</appendix>

doc/cloning-standbys.sgml

@@ -2,8 +2,6 @@
  <title>Cloning standbys</title>
 
  <sect1 id="cloning-from-barman" xreflabel="Cloning from Barman">
-   <title>Cloning a standby from Barman</title>
-
    <indexterm>
     <primary>cloning</primary>
     <secondary>from Barman</secondary>
@@ -13,8 +11,9 @@
     <secondary>cloning a standby</secondary>
    </indexterm>
 
+   <title>Cloning a standby from Barman</title>
    <para>
-    <xref linkend="repmgr-standby-clone"/> can use
+    <xref linkend="repmgr-standby-clone"> can use
     <ulink url="https://www.2ndquadrant.com/">2ndQuadrant</ulink>'s
     <ulink url="https://www.pgbarman.org/">Barman</ulink> application
     to clone a standby (and also as a fallback source for WAL files).
@@ -74,7 +73,7 @@
       <para>
         the <varname>restore_command</varname> setting in <filename>repmgr.conf</filename> is configured to
         use a copy of the <command>barman-wal-restore</command> script shipped with the
-        <literal>barman-cli</literal> package (see section <xref linkend="cloning-from-barman-restore-command"/>
+        <literal>barman-cli</literal> package (see section <xref linkend="cloning-from-barman-restore-command">
         below).
       </para>
      </listitem>
@@ -127,13 +126,12 @@
    </para>
   </sect2>
   <sect2 id="cloning-from-barman-restore-command" xreflabel="Using Barman as a WAL file source">
-   <title>Using Barman as a WAL file source</title>
-
-   <indexterm>
+  <indexterm>
     <primary>Barman</primary>
     <secondary>fetching archived WAL</secondary>
    </indexterm>
 
+   <title>Using Barman as a WAL file source</title>
    <para>
     As a fallback in case streaming replication is interrupted, PostgreSQL can optionally
     retrieve WAL files from an archive, such as that provided by Barman. This is done by
@@ -174,9 +172,7 @@
   </sect2>
  </sect1>
 
- <sect1 id="cloning-replication-slots" xreflabel="Cloning and replication slots">
-   <title>Cloning and replication slots</title>
-
+<sect1 id="cloning-replication-slots" xreflabel="Cloning and replication slots">
    <indexterm>
      <primary>cloning</primary>
      <secondary>replication slots</secondary>
@@ -186,6 +182,7 @@
      <primary>replication slots</primary>
      <secondary>cloning</secondary>
    </indexterm>
+   <title>Cloning and replication slots</title>
    <para>
     Replication slots were introduced with PostgreSQL 9.4 and are designed to ensure
     that any standby connected to the primary using a replication slot will always
@@ -247,27 +244,25 @@
     <simpara>
      As an alternative we recommend using 2ndQuadrant's <ulink url="https://www.pgbarman.org/">Barman</ulink>,
      which offloads WAL management to a separate server, removing the requirement to use a replication
-     slot for each individual standby to reserve WAL. See section <xref linkend="cloning-from-barman"/>
+     slot for each individual standby to reserve WAL. See section <xref linkend="cloning-from-barman">
      for more details on using &repmgr; together with Barman.
     </simpara>
    </tip>
  </sect1>
 
  <sect1 id="cloning-cascading" xreflabel="Cloning and cascading replication">
-   <title>Cloning and cascading replication</title>
-
    <indexterm>
      <primary>cloning</primary>
      <secondary>cascading replication</secondary>
    </indexterm>
-
+   <title>Cloning and cascading replication</title>
    <para>
     Cascading replication, introduced with PostgreSQL 9.2, enables a standby server
     to replicate from another standby server rather than directly from the primary,
     meaning replication changes "cascade" down through a hierarchy of servers. This
     can be used to reduce load on the primary and minimize bandwith usage between
     sites. For more details, see the
-    <ulink url="https://www.postgresql.org/docs/current/warm-standby.html#CASCADING-REPLICATION">
+    <ulink url="https://www.postgresql.org/docs/current/static/warm-standby.html#CASCADING-REPLICATION">
     PostgreSQL cascading replication documentation</ulink>.
    </para>
    <para>
@@ -281,7 +276,7 @@
    </para>
    <para>
     To demonstrate cascading replication, first ensure you have a primary and standby
-    set up as shown in the <xref linkend="quickstart"/>.
+    set up as shown in the <xref linkend="quickstart">.
     Then create an additional standby server with <filename>repmgr.conf</filename> looking
     like this:
     <programlisting>
@@ -344,11 +339,11 @@
  </sect1>
 
  <sect1 id="cloning-advanced" xreflabel="Advanced cloning options">
-   <title>Advanced cloning options</title>
    <indexterm>
      <primary>cloning</primary>
      <secondary>advanced options</secondary>
    </indexterm>
+   <title>Advanced cloning options</title>
 
    <sect2 id="cloning-advanced-pg-basebackup-options" xreflabel="pg_basebackup options when cloning a standby">
     <title>pg_basebackup options when cloning a standby</title>
@@ -370,7 +365,7 @@
       <simpara>
         If <application>Barman</application> is set up for the cluster, it's possible to
         clone the standby directly from Barman, without any impact on the server the standby
-        is being cloned from. For more details see <xref linkend="cloning-from-barman"/>.
+        is being cloned from. For more details see <xref linkend="cloning-from-barman">.
       </simpara>
     </tip>
     <para>
@@ -396,7 +391,7 @@
       a symlink will automatically be created from the main data directory.
     </para>
     <para>
-     See the <ulink url="https://www.postgresql.org/docs/current/app-pgbasebackup.html">PostgreSQL pg_basebackup documentation</ulink>
+     See the <ulink url="https://www.postgresql.org/docs/current/static/app-pgbasebackup.html">PostgreSQL pg_basebackup documentation</ulink>
      for more details of available options.
     </para>
    </sect2>
@@ -418,7 +413,7 @@
      user's <filename>~/.pgpass</filename> file. It's also possible to store the password in the
      environment variable <varname>PGPASSWORD</varname>, however this is not recommended for
      security reasons. For more details see the
-     <ulink url="https://www.postgresql.org/docs/current/libpq-pgpass.html">PostgreSQL password file documentation</ulink>.
+     <ulink url="https://www.postgresql.org/docs/current/static/libpq-pgpass.html">PostgreSQL password file documentation</ulink>.
     </para>
 
     <note>
@@ -438,7 +433,7 @@
      (but not <filename>~/.pgpass</filename>) and place it into the <varname>primary_conninfo</varname>
      string in <filename>recovery.conf</filename>. Note that <varname>PGPASSWORD</varname>
      will need to be set during any action which causes <filename>recovery.conf</filename> to be
-     rewritten, e.g. <xref linkend="repmgr-standby-follow"/>.
+     rewritten, e.g. <xref linkend="repmgr-standby-follow">.
     </para>
     <para>
      It is of course also possible to include the password value in the <varname>conninfo</varname>
@@ -465,7 +460,7 @@
      replication connections and generating <filename>recovery.conf</filename>. This
      value will also be stored in the parameter <literal>repmgr.nodes</literal>
      table for each node; it no longer needs to be explicitly specified when
-     cloning a node or executing <xref linkend="repmgr-standby-follow"/>.
+     cloning a node or executing <xref linkend="repmgr-standby-follow">.
     </para>
    </sect2>
  </sect1>

doc/configuration-file-log-settings.sgml

@@ -1,6 +1,4 @@
 <sect1 id="configuration-file-log-settings" xreflabel="log settings">
-  <title>Log settings</title>
-
   <indexterm>
     <primary>repmgr.conf</primary>
     <secondary>log settings</secondary>
@@ -9,9 +7,10 @@
     <primary>log settings</primary>
     <secondary>configuration in repmgr.conf</secondary>
   </indexterm>
+  <title>Log settings</title>
 
   <para>
-    By default, &repmgr; and &repmgrd; write log output to
+    By default, &repmgr; and <application>repmgrd</application> write log output to
     <literal>STDERR</literal>. An alternative log destination can be specified
     (either a file or <literal>syslog</literal>).
   </para>
@@ -25,7 +24,7 @@
     <para>
       This behaviour can be overriden with the command line option <option>--log-to-file</option>,
       which will redirect all logging output to the configured log destination. This is recommended
-      when &repmgr; is executed by another application, particularly &repmgrd;,
+      when &repmgr; is executed by another application, particularly <application>repmgrd</application>,
       to enable log output generated by the &repmgr; application to be stored for later reference.
     </para>
   </note>
@@ -33,11 +32,12 @@
   <variablelist>
 
    <varlistentry id="repmgr-conf-log-level" xreflabel="log_level">
-    <term><varname>log_level</varname> (<type>string</type>)</term>
-    <listitem>
+    <term><varname>log_level</varname> (<type>string</type>)
      <indexterm>
       <primary><varname>log_level</varname> configuration file parameter</primary>
      </indexterm>
+    </term>
+    <listitem>
      <para>
        One of <option>DEBUG</option>, <option>INFO</option>, <option>NOTICE</option>,
        <option>WARNING</option>, <option>ERROR</option>, <option>ALERT</option>, <option>CRIT</option>
@@ -76,11 +76,11 @@
     </term>
     <listitem>
      <para>
-       If <xref linkend="repmgr-conf-log-facility"/> is set to <option>STDERR</option>, log output
+       If <xref linkend="repmgr-conf-log-facility"> is set to <option>STDERR</option>, log output
        can be redirected to the specified file.
      </para>
      <para>
-       See <xref linkend="repmgrd-log-rotation"/> for information on configuring log rotation.
+       See <xref linkend="repmgrd-log-rotation"> for information on configuring log rotation.
      </para>
     </listitem>
    </varlistentry>
@@ -93,12 +93,12 @@
     </term>
     <listitem>
      <para>
-       This setting causes &repmgrd; to emit a status log
+       This setting causes <application>repmgrd</application> to emit a status log
        line at the specified interval (in seconds, default <literal>300</literal>)
-       describing &repmgrd;'s current state, e.g.:
+       describing <application>repmgrd</application>'s current state, e.g.:
      </para>
      <programlisting>
-      [2018-07-12 00:47:32] [INFO] monitoring connection to upstream node "node1" (ID: 1)</programlisting>
+      [2018-07-12 00:47:32] [INFO] monitoring connection to upstream node "node1" (node ID: 1)</programlisting>
     </listitem>
    </varlistentry>
 

doc/configuration-file-required-settings.sgml

@@ -1,12 +1,10 @@
 <sect1 id="configuration-file-settings" xreflabel="required configuration file settings">
-
- <title>Required configuration file settings</title>
-
   <indexterm>
     <primary>repmgr.conf</primary>
     <secondary>required settings</secondary>
   </indexterm>
 
+ <title>Required configuration file settings</title>
  <para>
    Each <filename>repmgr.conf</filename> file must contain the following parameters:
  </para>
@@ -41,10 +39,6 @@
        called <varname>standby1</varname> (for example), things will be confusing
        to say the least.
      </para>
-     <para>
-       The string's maximum length is 63 characters and it should
-       contain only printable ASCII characters.
-     </para>
     </listitem>
    </varlistentry>
 
@@ -62,7 +56,7 @@
      </para>
      <para>
        For details on conninfo strings, see section <ulink
-       url="https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-CONNSTRING">Connection Strings</ulink>
+       url="https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING">Connection Strings</>
         in the PosgreSQL documentation.
      </para>
      <para>
@@ -70,19 +64,19 @@
         <varname>connect_timeout</varname> in the <varname>conninfo</varname>
         string to determine the length of time which elapses before a network
         connection attempt is abandoned; for details see <ulink
-        url="https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-CONNECT-CONNECT-TIMEOUT">
-        the PostgreSQL documentation</ulink>.
+        url="https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNECT-CONNECT-TIMEOUT">
+        the PostgreSQL documentation</>.
      </para>
     </listitem>
    </varlistentry>
 
    <varlistentry id="repmgr-conf-data-directory" xreflabel="data_directory">
-    <term><varname>data_directory</varname> (<type>string</type>)</term>
+    <term><varname>data_directory</varname> (<type>string</type>)
+     <indexterm>
+      <primary><varname>data_directory</varname> configuration file parameter</primary>
+     </indexterm>
+    </term>
     <listitem>
-      <indexterm>
-        <primary><varname>data_directory</varname> configuration file parameter</primary>
-      </indexterm>
-
      <para>
        The node's data directory. This is needed by repmgr
        when performing operations when the PostgreSQL instance
@@ -96,6 +90,33 @@
   </variablelist>
  </para>
 
+  <para>
+    For a full list of annotated configuration items, see the file
+    <ulink url="https://raw.githubusercontent.com/2ndQuadrant/repmgr/master/repmgr.conf.sample">repmgr.conf.sample</ulink>.
+  </para>
+  <para>
+    For <application>repmgrd</application>-specific settings, see <xref linkend="repmgrd-configuration">.
+  </para>
 
+  <note>
+    <para>
+    The following parameters in the configuration file can be overridden with
+    command line options:
+    <itemizedlist>
+     <listitem>
+       <simpara>
+         <literal>-L/--log-level</literal> overrides <literal>log_level</literal> in
+         <filename>repmgr.conf</filename>
+       </simpara>
+     </listitem>
+     <listitem>
+       <simpara>
+         <literal>-b/--pg_bindir</literal> overrides <literal>pg_bindir</literal> in
+         <filename>repmgr.conf</filename>
+       </simpara>
+     </listitem>
+    </itemizedlist>
+    </para>
+  </note>
 
 </sect1>

doc/configuration-file-service-commands.sgml

@@ -1,6 +1,4 @@
 <sect1 id="configuration-file-service-commands" xreflabel="service command settings">
-  <title>Service command settings</title>
-
   <indexterm>
     <primary>repmgr.conf</primary>
     <secondary>service command settings</secondary>
@@ -9,9 +7,10 @@
     <primary>service command settings</primary>
     <secondary>configuration in repmgr.conf</secondary>
   </indexterm>
+  <title>Service command settings</title>
 
   <para>
-    In some circumstances, &repmgr; (and &repmgrd;) need to
+    In some circumstances, &repmgr; (and <application>repmgrd</application>) need to
     be able to stop, start or restart PostgreSQL. &repmgr; commands which need to do this
     include <link linkend="repmgr-standby-follow"><command>repmgr standby follow</command></link>,
     <link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link> and
@@ -69,7 +68,7 @@
     </para>
     <para>
       Do not confuse this with <varname>promote_command</varname>, which is used
-      by &repmgrd; to execute <xref linkend="repmgr-standby-promote"/>.
+      by <application>repmgrd</application> to execute <xref linkend="repmgr-standby-promote">.
     </para>
   </note>
 

doc/configuration-file.sgml

@@ -1,7 +1,4 @@
 <sect1 id="configuration-file" xreflabel="configuration file">
-
-  <title>Configuration file</title>
-
   <indexterm>
     <primary>repmgr.conf</primary>
   </indexterm>
@@ -11,35 +8,37 @@
     <secondary>repmgr.conf</secondary>
   </indexterm>
 
+  <title>Configuration file</title>
+
   <para>
-    <application>repmgr</application> and &repmgrd;
+    <application>repmgr</application> and <application>repmgrd</application>
     use a common configuration file, by default called
     <filename>repmgr.conf</filename> (although any name can be used if explicitly specified).
     <filename>repmgr.conf</filename> must contain a number of required parameters, including
     the database connection string for the local node and the location
     of its data directory; other values will be inferred from defaults if
-    not explicitly supplied. See section <xref linkend="configuration-file-settings"/>
+    not explicitly supplied. See section <xref linkend="configuration-file-settings">
     for more details.
   </para>
 
   <sect2 id="configuration-file-format" xreflabel="configuration file format">
 
-    <title>Configuration file format</title>
-
     <indexterm>
       <primary>repmgr.conf</primary>
       <secondary>format</secondary>
     </indexterm>
 
+    <title>Configuration file format</title>
+
     <para>
       <filename>repmgr.conf</filename> is a plain text file with one parameter/value
       combination per line.
     </para>
     <para>
       Whitespace is insignificant (except within a quoted parameter value) and blank lines are ignored.
-      Hash marks (<literal>#</literal>) designate the remainder of the line as a comment.
-      Parameter values that are not simple identifiers or numbers should be single-quoted.
-      Note that single quote cannot be embedded in a parameter value.
+      Hash marks (#) designate the remainder of the line as a comment. Parameter values that are not simple
+      identifiers or numbers should be single-quoted. Note that single quote can not be embedded
+      in a parameter value.
     </para>
     <important>
       <para>
@@ -62,79 +61,14 @@ data_directory = /var/lib/pgsql/11/data</programlisting>
   </sect2>
 
 
-  <sect2 id="configuration-file-items" xreflabel="configuration file items">
-
-    <title>Configuration file items</title>
-    <para>
-      The following sections document some sections of the configuration file:
-       <itemizedlist>
-          <listitem>
-            <simpara>
-              <xref linkend="configuration-file-settings"/>
-            </simpara>
-          </listitem>
-
-          <listitem>
-            <simpara>
-              <xref linkend="configuration-file-optional-settings"/>
-            </simpara>
-          </listitem>
-
-          <listitem>
-            <simpara>
-              <xref linkend="configuration-file-log-settings"/>
-            </simpara>
-          </listitem>
-
-
-          <listitem>
-            <simpara>
-              <xref linkend="configuration-file-service-commands"/>
-            </simpara>
-          </listitem>
-
-       </itemizedlist>
-
-    </para>
-    <para>
-      For a full list of annotated configuration items, see the file
-      <ulink url="https://raw.githubusercontent.com/2ndQuadrant/repmgr/master/repmgr.conf.sample">repmgr.conf.sample</ulink>.
-    </para>
-    <para>
-      For &repmgrd;-specific settings, see <xref linkend="repmgrd-configuration"/>.
-    </para>
-
-    <note>
-      <para>
-        The following parameters in the configuration file can be overridden with
-        command line options:
-        <itemizedlist>
-          <listitem>
-            <simpara>
-              <literal>-L/--log-level</literal> overrides <literal>log_level</literal> in
-              <filename>repmgr.conf</filename>
-            </simpara>
-          </listitem>
-          <listitem>
-            <simpara>
-              <literal>-b/--pg_bindir</literal> overrides <literal>pg_bindir</literal> in
-              <filename>repmgr.conf</filename>
-            </simpara>
-          </listitem>
-        </itemizedlist>
-      </para>
-    </note>
-
-  </sect2>
 
   <sect2 id="configuration-file-location" xreflabel="configuration file location">
-  <title>Configuration file location</title>
-
   <indexterm>
     <primary>repmgr.conf</primary>
     <secondary>location</secondary>
   </indexterm>
 
+  <title>Configuration file location</title>
 
   <para>
    The configuration file will be searched for in the following locations:
@@ -171,10 +105,10 @@ data_directory = /var/lib/pgsql/11/data</programlisting>
   <note>
     <para>
       If providing the configuration file location with <literal>-f/--config-file</literal>,
-      avoid using a relative path, particularly when executing <xref linkend="repmgr-primary-register"/>
-      and <xref linkend="repmgr-standby-register"/>, as &repmgr; stores the configuration file location
+      avoid using a relative path, particularly when executing <xref linkend="repmgr-primary-register">
+      and <xref linkend="repmgr-standby-register">, as &repmgr; stores the configuration file location
       in the repmgr metadata for use when &repmgr; is executed remotely (e.g. during
-      <xref linkend="repmgr-standby-switchover"/>). &repmgr; will attempt to convert the
+      <xref linkend="repmgr-standby-switchover">). &repmgr; will attempt to convert the
       a relative path into an absolute one, but this may not be the same as the path you
       would explicitly provide (e.g. <filename>./repmgr.conf</filename> might be converted
       to <filename>/path/to/./repmgr.conf</filename>, whereas you'd normally write

doc/configuration.sgml

@@ -2,8 +2,6 @@
   <title>repmgr configuration</title>
 
   <sect1 id="configuration-prerequisites" xreflabel="Prerequisites for configuration">
-    <title>Prerequisites for configuration</title>
-
     <indexterm>
       <primary>configuration</primary>
       <secondary>prerequisites</secondary>
@@ -14,6 +12,7 @@
       <secondary>ssh</secondary>
     </indexterm>
 
+    <title>Prerequisites for configuration</title>
     <para>
      Following software must be installed on both servers:
      <itemizedlist spacing="compact" mark="bullet">
@@ -63,8 +62,6 @@
     </tip>
 
   <sect2 id="configuration-postgresql" xreflabel="PostgreSQL configuration">
-      <title>PostgreSQL configuration for &repmgr;</title>
-
     <indexterm>
       <primary>configuration</primary>
       <secondary>PostgreSQL</secondary>
@@ -74,6 +71,7 @@
       <primary>PostgreSQL configuration</primary>
     </indexterm>
 
+    <title>PostgreSQL configuration for &repmgr;</title>
     <para>
       The following PostgreSQL configuration parameters may need to be changed in order
       for &repmgr; (and replication itself) to function correctly.
@@ -83,14 +81,13 @@
 
       <varlistentry>
 
+        <indexterm>
+          <primary>hot_standby</primary>
+          <secondary>PostgreSQL configuration</secondary>
+        </indexterm>
+
         <term><option>hot_standby</option></term>
         <listitem>
-
-          <indexterm>
-            <primary>hot_standby</primary>
-            <secondary>PostgreSQL configuration</secondary>
-          </indexterm>
-
           <para>
             <option>hot_standby</option> must always be set to <literal>on</literal>, as &repmgr; needs
             to be able to connect to each server it manages.
@@ -107,15 +104,13 @@
 
       <varlistentry>
 
+        <indexterm>
+          <primary>wal_level</primary>
+          <secondary>PostgreSQL configuration</secondary>
+        </indexterm>
+
         <term><option>wal_level</option></term>
-
         <listitem>
-
-          <indexterm>
-            <primary>wal_level</primary>
-            <secondary>PostgreSQL configuration</secondary>
-          </indexterm>
-
           <para>
             <option>wal_level</option> must be one of <option>replica</option> or <option>logical</option>
             (PostgreSQL 9.5 and earlier: one of <option>hot_standby</option> or <option>logical</option>).
@@ -128,15 +123,13 @@
 
       <varlistentry>
 
+        <indexterm>
+          <primary>max_wal_senders</primary>
+          <secondary>PostgreSQL configuration</secondary>
+        </indexterm>
+
         <term><option>max_wal_senders</option></term>
-
         <listitem>
-
-          <indexterm>
-            <primary>max_wal_senders</primary>
-            <secondary>PostgreSQL configuration</secondary>
-          </indexterm>
-
           <para>
             <option>max_wal_senders</option> must be set to a value of <literal>2</literal> or greater.
             In general you will need one WAL sender for each standby which will attach to the PostgreSQL
@@ -156,15 +149,13 @@
 
       <varlistentry>
 
+        <indexterm>
+          <primary>max_replication_slots</primary>
+          <secondary>PostgreSQL configuration</secondary>
+        </indexterm>
+
         <term><option>max_replication_slots</option></term>
-
         <listitem>
-
-          <indexterm>
-            <primary>max_replication_slots</primary>
-            <secondary>PostgreSQL configuration</secondary>
-          </indexterm>
-
           <para>
             If you are intending to use replication slots, <option>max_replication_slots</option>
             must be set to a non-zero value.
@@ -183,20 +174,19 @@
 
       <varlistentry>
 
+        <indexterm>
+          <primary>wal_log_hints</primary>
+          <secondary>PostgreSQL configuration</secondary>
+        </indexterm>
+
         <term><option>wal_log_hints</option></term>
         <listitem>
-          <indexterm>
-            <primary>wal_log_hints</primary>
-            <secondary>PostgreSQL configuration</secondary>
-          </indexterm>
-
-
           <para>If you are intending to use <application>pg_rewind</application>,
             and the cluster was not initialised using data checksums, you may want to consider enabling
             <option>wal_log_hints</option>.
           </para>
           <para>
-            For more details see <xref linkend="repmgr-node-rejoin-pg-rewind"/>.
+            For more details see <xref linkend="repmgr-node-rejoin-pg-rewind">.
           </para>
           <para>
             PostgreSQL documentation: <ulink url="https://www.postgresql.org/docs/current/runtime-config-wal.html#GUC-WAL-LOG-HINTS">wal_log_hints</ulink>.
@@ -206,15 +196,13 @@
 
       <varlistentry>
 
+        <indexterm>
+          <primary>archive_mode</primary>
+          <secondary>PostgreSQL configuration</secondary>
+        </indexterm>
+
         <term><option>archive_mode</option></term>
-
         <listitem>
-
-          <indexterm>
-            <primary>archive_mode</primary>
-            <secondary>PostgreSQL configuration</secondary>
-          </indexterm>
-
           <para>
             We suggest setting <option>archive_mode</option> to <literal>on</literal> (and
             <option>archive_command</option> to <literal>/bin/true</literal>; see below)
@@ -237,15 +225,13 @@
 
       <varlistentry>
 
+        <indexterm>
+          <primary>archive_command</primary>
+          <secondary>PostgreSQL configuration</secondary>
+        </indexterm>
+
         <term><option>archive_command</option></term>
-
         <listitem>
-
-          <indexterm>
-            <primary>archive_command</primary>
-            <secondary>PostgreSQL configuration</secondary>
-          </indexterm>
-
           <para>
             If you have set  <option>archive_mode</option> to <literal>on</literal> but are not currently planning
             to use WAL file archiving, set <option>archive_command</option> to a command which does nothing but returns
@@ -260,15 +246,13 @@
 
       <varlistentry>
 
+        <indexterm>
+          <primary>wal_keep_segments</primary>
+          <secondary>PostgreSQL configuration</secondary>
+        </indexterm>
+
         <term><option>wal_keep_segments</option></term>
-
         <listitem>
-
-          <indexterm>
-            <primary>wal_keep_segments</primary>
-            <secondary>PostgreSQL configuration</secondary>
-          </indexterm>
-
           <para>
             Normally there is no need to set <option>wal_keep_segments</option> (default: <literal>0</literal>), as it
             is <emphasis>not</emphasis> a reliable way of ensuring that all required WAL segments are available to standbys.
@@ -305,18 +289,16 @@
 
   &configuration-file;
   &configuration-file-required-settings;
-  &configuration-file-optional-settings;
   &configuration-file-log-settings;
   &configuration-file-service-commands;
 
   <sect1 id="configuration-permissions" xreflabel="Database user permissions">
-    <title>repmgr database user permissions</title>
-
     <indexterm>
       <primary>configuration</primary>
       <secondary>database user permissions</secondary>
     </indexterm>
 
+    <title>repmgr database user permissions</title>
     <para>
       &repmgr; will create an extension database containing objects
       for administering &repmgr; metadata. The user defined in the <varname>conninfo</varname>

doc/configuring-witness-server.sgml

@@ -0,0 +1,93 @@
+<chapter id="using-witness-server">
+ <indexterm>
+  <primary>witness server</primary>
+  <seealso>Using a witness server with repmgrd</seealso>
+ </indexterm>
+
+
+ <title>Using a witness server</title>
+ <para>
+   A <xref linkend="witness-server"> is a normal PostgreSQL instance which
+   is not part of the streaming replication cluster; its purpose is, if a
+   failover situation occurs, to provide proof that the primary server
+   itself is unavailable.
+ </para>
+
+ <para>
+   A typical use case for a witness server is a two-node streaming replication
+   setup, where the primary and standby are in different locations (data centres).
+   By creating a witness server in the same location (data centre) as the primary,
+   if the primary becomes unavailable it's possible for the standby to decide whether
+   it can promote itself without risking a "split brain" scenario: if it can't see either the
+   witness or the primary server, it's likely there's a network-level interruption
+   and it should not promote itself. If it can seen the witness but not the primary,
+   this proves there is no network interruption and the primary itself is unavailable,
+   and it can therefore promote itself (and ideally take action to fence the
+   former primary).
+ </para>
+ <note>
+   <para>
+     <emphasis>Never</emphasis> install a witness server on the same physical host
+     as another node in the replication cluster managed by &repmgr; - it's essential
+     the witness is not affected in any way by failure of another node.
+   </para>
+ </note>
+ <para>
+   For more complex replication scenarios,e.g. with multiple datacentres, it may
+   be preferable to use location-based failover, which ensures that only nodes
+   in the same location as the primary will ever be promotion candidates;
+   see <xref linkend="repmgrd-network-split"> for more details.
+ </para>
+
+ <note>
+   <simpara>
+     A witness server will only be useful if <application>repmgrd</application>
+     is in use.
+   </simpara>
+ </note>
+
+ <sect1 id="creating-witness-server">
+   <title>Creating a witness server</title>
+ <para>
+   To create a witness server, set up a normal PostgreSQL instance on a server
+   in the same physical location as the cluster's primary server.
+ </para>
+ <para>
+   This instance should *not* be on the same physical host as the primary server,
+   as otherwise if the primary server fails due to hardware issues, the witness
+   server will be lost too.
+ </para>
+ <note>
+   <simpara>
+     &repmgr; 3.3 and earlier provided a <command>repmgr create witness</command>
+     command, which would automatically create a PostgreSQL instance. However
+     this often resulted in an unsatisfactory, hard-to-customise instance.
+   </simpara>
+ </note>
+ <para>
+   The witness server should be configured in the same way as a normal
+   &repmgr; node; see section <xref linkend="configuration">.
+ </para>
+ <para>
+   Register the witness server with <xref linkend="repmgr-witness-register">.
+   This will create the &repmgr; extension on the witness server, and make
+   a copy of the &repmgr; metadata.
+ </para>
+ <note>
+   <simpara>
+    As the witness server is not part of the replication cluster, further
+    changes to the &repmgr; metadata will be synchronised by
+    <application>repmgrd</application>.
+   </simpara>
+ </note>
+ <para>
+   Once the witness server has been configured, <application>repmgrd</application>
+   should be started; for more details see <xref linkend="repmgrd-witness-server">.
+ </para>
+
+ <para>
+  To unregister a witness server, use <xref linkend="repmgr-witness-unregister">.
+ </para>
+
+ </sect1>
+</chapter>

doc/event-notifications.sgml

@@ -1,12 +1,12 @@
 <chapter id="event-notifications" xreflabel="event notifications">
- <title>Event Notifications</title>
 
  <indexterm>
    <primary>event notifications</primary>
  </indexterm>
 
+ <title>Event Notifications</title>
  <para>
-  Each time &repmgr; or &repmgrd; perform a significant event, a record
+  Each time &repmgr; or <application>repmgrd</application> perform a significant event, a record
   of that event is written into the <literal>repmgr.events</literal> table together with
   a timestamp, an indication of failure or success, and further details
   if appropriate. This is useful for gaining an overview of events
@@ -27,7 +27,7 @@
     (3 rows)</programlisting>
  </para>
  <para>
-  Alternatively, use <xref linkend="repmgr-cluster-event"/> to output a
+  Alternatively, use <xref linkend="repmgr-cluster-event"> to output a
   formatted list of events.
  </para>
  <para>
@@ -88,10 +88,11 @@
 
  <para>
   The values provided for <literal>%t</literal> and <literal>%d</literal>
-  may contain spaces, so should be quoted in the provided command
+  will probably contain spaces, so should be quoted in the provided command
   configuration, e.g.:
   <programlisting>
-    event_notification_command='/path/to/some/script %n %e %s "%t" "%d"'</programlisting>
+    event_notification_command='/path/to/some/script %n %e %s "%t" "%d"'
+  </programlisting>
  </para>
 
  <para>
@@ -103,10 +104,10 @@
    <term><option>%p</option></term>
    <listitem>
     <para>
-     node ID of the current primary (<xref linkend="repmgr-standby-register"/> and <xref linkend="repmgr-standby-follow"/>)
+     node ID of the current primary (<xref linkend="repmgr-standby-register"> and <xref linkend="repmgr-standby-follow">)
     </para>
     <para>
-     node ID of the demoted primary (<xref linkend="repmgr-standby-switchover"/> only)
+     node ID of the demoted primary (<xref linkend="repmgr-standby-switchover"> only)
     </para>
    </listitem>
   </varlistentry>
@@ -115,7 +116,7 @@
    <listitem>
     <para>
      <literal>conninfo</literal> string of the primary node
-     (<xref linkend="repmgr-standby-register"/> and <xref linkend="repmgr-standby-follow"/>)
+     (<xref linkend="repmgr-standby-register"> and <xref linkend="repmgr-standby-follow">)
     </para>
     <para>
       <literal>conninfo</literal> string of the next available node
@@ -128,7 +129,7 @@
    <term><option>%a</option></term>
    <listitem>
     <para>
-     name of the current primary node (<xref linkend="repmgr-standby-register"/> and <xref linkend="repmgr-standby-follow"/>)
+     name of the current primary node (<xref linkend="repmgr-standby-register"> and <xref linkend="repmgr-standby-follow">)
     </para>
     <para>
      name of the next available node (<varname>bdr_failover</varname> and  <varname>bdr_recovery</varname>)
@@ -146,10 +147,7 @@
  <para>
   By default, all notification types will be passed to the designated script;
   the notification types can be filtered to explicitly named ones using the
-  <varname>event_notifications</varname> parameter, e.g.:
-    <programlisting>
-    event_notifications=primary_register,standby_register,witness_register</programlisting>
-
+  <varname>event_notifications</varname> parameter.
  </para>
 
  <para>
@@ -207,7 +205,7 @@
  </para>
 
  <para>
-   Events generated by &repmgrd; (streaming replication mode):
+   Events generated by <application>repmgrd</application> (streaming replication mode):
 
    <itemizedlist spacing="compact" mark="bullet">
    <listitem>
@@ -257,24 +255,11 @@
     <simpara><literal>standby_recovery</literal></simpara>
    </listitem>
 
-   <listitem>
-     <simpara><literal><link linkend="repmgrd-primary-child-disconnection-events">child_node_disconnect</link></literal></simpara>
-   </listitem>
-   <listitem>
-     <simpara><literal><link linkend="repmgrd-primary-child-disconnection-events">child_node_reconnect</link></literal></simpara>
-   </listitem>
-   <listitem>
-     <simpara><literal><link linkend="repmgrd-primary-child-disconnection-events">child_node_new_connect</link></literal></simpara>
-   </listitem>
-   <listitem>
-     <simpara><literal><link linkend="repmgrd-primary-child-disconnection-events">child_nodes_disconnect_command</link></literal></simpara>
-   </listitem>
-
    </itemizedlist>
  </para>
 
   <para>
-   Events generated by &repmgrd; (BDR mode):
+   Events generated by <application>repmgrd</application> (BDR mode):
    <itemizedlist spacing="compact" mark="bullet">
    <listitem>
     <simpara><literal>bdr_failover</literal></simpara>

doc/filelist.sgml

@@ -0,0 +1,93 @@
+<!-- doc/filelist.sgml -->
+
+<!ENTITY legal      SYSTEM "legal.sgml">
+
+<!ENTITY bookindex  SYSTEM "bookindex.sgml">
+
+<!--
+ Some parts of the documentation are also source for some plain-text
+ files used during installation.  To selectively ignore or include
+ some parts (e.g., external xref's) when generating these files we use
+ these parameter entities.  See also standalone-install.sgml.
+ -->
+<!ENTITY % standalone-ignore  "INCLUDE">
+<!ENTITY % standalone-include "IGNORE">
+
+<!-- doc/filelist.sgml -->
+
+<!--
+ By default, no index is included.  Use -i include-index on the command line
+ to include it.
+ -->
+<!ENTITY % include-index "IGNORE">
+
+<!--
+ Create empty index element for processing by XSLT stylesheet.
+ -->
+<!ENTITY % include-xslt-index "IGNORE">
+
+<!--
+ Include external documentation sections
+ -->
+
+<!ENTITY overview      SYSTEM "overview.sgml">
+<!ENTITY install SYSTEM "install.sgml">
+<!ENTITY install-requirements      SYSTEM "install-requirements.sgml">
+<!ENTITY install-packages      SYSTEM "install-packages.sgml">
+<!ENTITY install-source      SYSTEM "install-source.sgml">
+<!ENTITY quickstart      SYSTEM "quickstart.sgml">
+<!ENTITY configuration      SYSTEM "configuration.sgml">
+<!ENTITY configuration-file      SYSTEM "configuration-file.sgml">
+<!ENTITY configuration-file-required-settings      SYSTEM "configuration-file-required-settings.sgml">
+<!ENTITY configuration-file-log-settings      SYSTEM "configuration-file-log-settings.sgml">
+<!ENTITY configuration-file-service-commands   SYSTEM "configuration-file-service-commands.sgml">
+<!ENTITY cloning-standbys  SYSTEM "cloning-standbys.sgml">
+<!ENTITY promoting-standby  SYSTEM "promoting-standby.sgml">
+<!ENTITY follow-new-primary  SYSTEM "follow-new-primary.sgml">
+<!ENTITY switchover  SYSTEM "switchover.sgml">
+<!ENTITY configuring-witness-server SYSTEM "configuring-witness-server.sgml">
+
+<!ENTITY event-notifications  SYSTEM "event-notifications.sgml">
+<!ENTITY upgrading-repmgr  SYSTEM "upgrading-repmgr.sgml">
+
+<!ENTITY repmgrd-automatic-failover SYSTEM "repmgrd-automatic-failover.sgml">
+<!ENTITY repmgrd-configuration SYSTEM "repmgrd-configuration.sgml">
+<!ENTITY repmgrd-demonstration SYSTEM "repmgrd-demonstration.sgml">
+<!ENTITY repmgrd-monitoring SYSTEM "repmgrd-monitoring.sgml">
+<!ENTITY repmgrd-degraded-monitoring SYSTEM "repmgrd-degraded-monitoring.sgml">
+<!ENTITY repmgrd-cascading-replication SYSTEM "repmgrd-cascading-replication.sgml">
+<!ENTITY repmgrd-network-split SYSTEM "repmgrd-network-split.sgml">
+<!ENTITY repmgrd-witness-server SYSTEM "repmgrd-witness-server.sgml">
+<!ENTITY repmgrd-pausing SYSTEM "repmgrd-pausing.sgml">
+<!ENTITY repmgrd-bdr SYSTEM "repmgrd-bdr.sgml">
+
+<!ENTITY repmgr-primary-register SYSTEM "repmgr-primary-register.sgml">
+<!ENTITY repmgr-primary-unregister SYSTEM "repmgr-primary-unregister.sgml">
+<!ENTITY repmgr-standby-clone SYSTEM "repmgr-standby-clone.sgml">
+<!ENTITY repmgr-standby-register SYSTEM "repmgr-standby-register.sgml">
+<!ENTITY repmgr-standby-unregister SYSTEM "repmgr-standby-unregister.sgml">
+<!ENTITY repmgr-standby-promote SYSTEM "repmgr-standby-promote.sgml">
+<!ENTITY repmgr-standby-follow SYSTEM "repmgr-standby-follow.sgml">
+<!ENTITY repmgr-standby-switchover SYSTEM "repmgr-standby-switchover.sgml">
+<!ENTITY repmgr-witness-register SYSTEM "repmgr-witness-register.sgml">
+<!ENTITY repmgr-witness-unregister SYSTEM "repmgr-witness-unregister.sgml">
+<!ENTITY repmgr-node-status SYSTEM "repmgr-node-status.sgml">
+<!ENTITY repmgr-node-check SYSTEM "repmgr-node-check.sgml">
+<!ENTITY repmgr-node-rejoin SYSTEM "repmgr-node-rejoin.sgml">
+<!ENTITY repmgr-node-service SYSTEM "repmgr-node-service.sgml">
+<!ENTITY repmgr-cluster-show SYSTEM "repmgr-cluster-show.sgml">
+<!ENTITY repmgr-cluster-matrix SYSTEM "repmgr-cluster-matrix.sgml">
+<!ENTITY repmgr-cluster-crosscheck SYSTEM "repmgr-cluster-crosscheck.sgml">
+<!ENTITY repmgr-cluster-event SYSTEM "repmgr-cluster-event.sgml">
+<!ENTITY repmgr-cluster-cleanup SYSTEM "repmgr-cluster-cleanup.sgml">
+<!ENTITY repmgr-daemon-status SYSTEM "repmgr-daemon-status.sgml">
+<!ENTITY repmgr-daemon-pause SYSTEM "repmgr-daemon-pause.sgml">
+<!ENTITY repmgr-daemon-unpause SYSTEM "repmgr-daemon-unpause.sgml">
+
+<!ENTITY appendix-release-notes  SYSTEM "appendix-release-notes.sgml">
+<!ENTITY appendix-faq      SYSTEM "appendix-faq.sgml">
+<!ENTITY appendix-signatures      SYSTEM "appendix-signatures.sgml">
+<!ENTITY appendix-packages      SYSTEM "appendix-packages.sgml">
+
+<!ENTITY bookindex  SYSTEM "bookindex.sgml">
+

doc/filelist.xml

@@ -1,70 +0,0 @@
-<!-- doc/filelist.xml -->
-
-<!ENTITY legal      SYSTEM "legal.xml">
-
-<!ENTITY bookindex  SYSTEM "bookindex.xml">
-
-
-<!--
- Include external documentation sections
- -->
-
-<!ENTITY overview      SYSTEM "overview.xml">
-<!ENTITY install SYSTEM "install.xml">
-<!ENTITY install-requirements      SYSTEM "install-requirements.xml">
-<!ENTITY install-packages      SYSTEM "install-packages.xml">
-<!ENTITY install-source      SYSTEM "install-source.xml">
-<!ENTITY quickstart      SYSTEM "quickstart.xml">
-<!ENTITY configuration      SYSTEM "configuration.xml">
-<!ENTITY configuration-file      SYSTEM "configuration-file.xml">
-<!ENTITY configuration-file-required-settings      SYSTEM "configuration-file-required-settings.xml">
-<!ENTITY configuration-file-optional-settings      SYSTEM "configuration-file-optional-settings.xml">
-<!ENTITY configuration-file-log-settings      SYSTEM "configuration-file-log-settings.xml">
-<!ENTITY configuration-file-service-commands   SYSTEM "configuration-file-service-commands.xml">
-<!ENTITY cloning-standbys  SYSTEM "cloning-standbys.xml">
-<!ENTITY promoting-standby  SYSTEM "promoting-standby.xml">
-<!ENTITY follow-new-primary  SYSTEM "follow-new-primary.xml">
-<!ENTITY switchover  SYSTEM "switchover.xml">
-
-<!ENTITY event-notifications  SYSTEM "event-notifications.xml">
-<!ENTITY upgrading-repmgr  SYSTEM "upgrading-repmgr.xml">
-
-<!ENTITY repmgrd-overview SYSTEM "repmgrd-overview.xml">
-<!ENTITY repmgrd-automatic-failover SYSTEM "repmgrd-automatic-failover.xml">
-<!ENTITY repmgrd-configuration SYSTEM "repmgrd-configuration.xml">
-<!ENTITY repmgrd-operation SYSTEM "repmgrd-operation.xml">
-<!ENTITY repmgrd-bdr SYSTEM "repmgrd-bdr.xml">
-
-<!ENTITY repmgr-primary-register SYSTEM "repmgr-primary-register.xml">
-<!ENTITY repmgr-primary-unregister SYSTEM "repmgr-primary-unregister.xml">
-<!ENTITY repmgr-standby-clone SYSTEM "repmgr-standby-clone.xml">
-<!ENTITY repmgr-standby-register SYSTEM "repmgr-standby-register.xml">
-<!ENTITY repmgr-standby-unregister SYSTEM "repmgr-standby-unregister.xml">
-<!ENTITY repmgr-standby-promote SYSTEM "repmgr-standby-promote.xml">
-<!ENTITY repmgr-standby-follow SYSTEM "repmgr-standby-follow.xml">
-<!ENTITY repmgr-standby-switchover SYSTEM "repmgr-standby-switchover.xml">
-<!ENTITY repmgr-witness-register SYSTEM "repmgr-witness-register.xml">
-<!ENTITY repmgr-witness-unregister SYSTEM "repmgr-witness-unregister.xml">
-<!ENTITY repmgr-node-status SYSTEM "repmgr-node-status.xml">
-<!ENTITY repmgr-node-check SYSTEM "repmgr-node-check.xml">
-<!ENTITY repmgr-node-rejoin SYSTEM "repmgr-node-rejoin.xml">
-<!ENTITY repmgr-node-service SYSTEM "repmgr-node-service.xml">
-<!ENTITY repmgr-cluster-show SYSTEM "repmgr-cluster-show.xml">
-<!ENTITY repmgr-cluster-matrix SYSTEM "repmgr-cluster-matrix.xml">
-<!ENTITY repmgr-cluster-crosscheck SYSTEM "repmgr-cluster-crosscheck.xml">
-<!ENTITY repmgr-cluster-event SYSTEM "repmgr-cluster-event.xml">
-<!ENTITY repmgr-cluster-cleanup SYSTEM "repmgr-cluster-cleanup.xml">
-<!ENTITY repmgr-daemon-status SYSTEM "repmgr-daemon-status.xml">
-<!ENTITY repmgr-daemon-start SYSTEM "repmgr-daemon-start.xml">
-<!ENTITY repmgr-daemon-stop SYSTEM "repmgr-daemon-stop.xml">
-<!ENTITY repmgr-daemon-pause SYSTEM "repmgr-daemon-pause.xml">
-<!ENTITY repmgr-daemon-unpause SYSTEM "repmgr-daemon-unpause.xml">
-
-<!ENTITY appendix-release-notes  SYSTEM "appendix-release-notes.xml">
-<!ENTITY appendix-faq      SYSTEM "appendix-faq.xml">
-<!ENTITY appendix-signatures      SYSTEM "appendix-signatures.xml">
-<!ENTITY appendix-packages      SYSTEM "appendix-packages.xml">
-<!ENTITY appendix-support SYSTEM "appendix-support.xml">
-
-<!ENTITY bookindex  SYSTEM "bookindex.xml">
-

doc/follow-new-primary.sgml

@@ -1,22 +1,21 @@
 <chapter id="follow-new-primary">
- <title>Following a new primary</title>
-
  <indexterm>
   <primary>Following a new primary</primary>
   <seealso>repmgr standby follow</seealso>
  </indexterm>
 
+ <title>Following a new primary</title>
  <para>
    Following the failure or removal of the replication cluster's existing primary
-   server, <xref linkend="repmgr-standby-follow"/> can be used to make &quot;orphaned&quot; standbys
+   server, <xref linkend="repmgr-standby-follow"> can be used to make 'orphaned' standbys
    follow the new primary and catch up to its current state.
  </para>
  <para>
   To demonstrate this, assuming a replication cluster in the same state as the
-  end of the preceding section (<xref linkend="promoting-standby"/>),
+  end of the preceding section (<xref linkend="promoting-standby">),
   execute this:
   <programlisting>
-    $ repmgr -f /etc/repmgr.conf standby follow
+    $ repmgr -f /etc/repmgr.conf repmgr standby follow
     INFO: changing node 3's primary to node 2
     NOTICE: restarting server using "pg_ctl -l /var/log/postgresql/startup.log -w -D '/var/lib/postgresql/data' restart"
     waiting for server to shut down......... done

doc/install-packages.sgml

@@ -1,11 +1,5 @@
 <sect1 id="installation-packages" xreflabel="Installing from packages">
  <title>Installing &repmgr; from packages</title>
-
-  <indexterm>
-   <primary>installation</primary>
-   <secondary>from packages</secondary>
-  </indexterm>
-
  <para>
   We recommend installing &repmgr; using the available packages for your
   system.
@@ -13,13 +7,12 @@
 
  <sect2 id="installation-packages-redhat" xreflabel="Installing from packages on RHEL, CentOS and Fedora">
 
-  <title>RedHat/CentOS/Fedora</title>
-
   <indexterm>
    <primary>installation</primary>
    <secondary>on Red Hat/CentOS/Fedora etc.</secondary>
   </indexterm>
 
+  <title>RedHat/CentOS/Fedora</title>
   <para>
 	&repmgr; RPM packages for RedHat/CentOS variants and Fedora are available from the
 	<ulink url="https://2ndquadrant.com">2ndQuadrant</ulink>
@@ -47,7 +40,7 @@
   <para>
     For more information on the package contents, including details of installation
     paths and relevant <link linkend="configuration-file-service-commands">service commands</link>,
-    see the appendix section <xref linkend="packages-centos"/>.
+    see the appendix section <xref linkend="packages-centos">.
   </para>
 
 
@@ -106,7 +99,7 @@ sudo yum repolist</programlisting>
 
         <listitem>
           <para>
-            Install the &repmgr; version appropriate for your PostgreSQL version (e.g. <literal>repmgr10</literal>):
+            Install the &repmgr version appropriate for your PostgreSQL version (e.g. <literal>repmgr10</literal>):
             <programlisting>
 sudo yum install repmgr10</programlisting>
           </para>
@@ -167,28 +160,17 @@ yum search repmgr</programlisting>
       <programlisting>
         [root@localhost ~]# yum install repmgr10-4.0.3-1.rhel7</programlisting>
     </para>
-
-    <para>
-      <emphasis>Installing old packages</emphasis>
-    </para>
-    <para>
-      See appendix <link linkend="packages-old-versions-rhel-centos">Installing old package versions</link>
-      for details on how to retrieve older package versions.
-    </para>
-
   </sect3>
-
  </sect2>
 
  <sect2 id="installation-packages-debian" xreflabel="Installing from packages on Debian or Ubuntu">
 
-  <title>Debian/Ubuntu</title>
-
   <indexterm>
    <primary>installation</primary>
    <secondary>on Debian/Ubuntu etc.</secondary>
   </indexterm>
 
+  <title>Debian/Ubuntu</title>
   <para>.deb packages for &repmgr; are available from the
   PostgreSQL Community APT repository (<ulink url="http://apt.postgresql.org/">http://apt.postgresql.org/</ulink>).
   Instructions can be found in the APT section of the PostgreSQL Wiki
@@ -197,7 +179,7 @@ yum search repmgr</programlisting>
   <para>
     For more information on the package contents, including details of installation
     paths and relevant <link linkend="configuration-file-service-commands">service commands</link>,
-    see the appendix section <xref linkend="packages-debian-ubuntu"/>.
+    see the appendix section <xref linkend="packages-debian-ubuntu">.
   </para>
 
   <sect3 id="installation-packages-debian-ubuntu-2ndq">
@@ -242,9 +224,10 @@ curl https://dl.2ndquadrant.com/default/release/get/deb | sudo bash</programlist
           </note>
         </listitem>
 
+
 	<listitem>
 	  <para>
-            Install the &repmgr; version appropriate for your PostgreSQL version (e.g. <literal>repmgr10</literal>):
+            Install the &repmgr version appropriate for your PostgreSQL version (e.g. <literal>repmgr10</literal>):
             <programlisting>
 sudo apt-get install postgresql-10-repmgr</programlisting>
 	  </para>
@@ -261,15 +244,6 @@ sudo apt-get install postgresql-10-repmgr</programlisting>
 
     </para>
 
-    <para>
-      <emphasis>Installing old packages</emphasis>
-    </para>
-    <para>
-      See appendix <link linkend="packages-old-versions-debian">Installing old package versions</link>
-      for details on how to retrieve older package versions.
-    </para>
-
-
   </sect3>
  </sect2>
 

doc/install-requirements.sgml

@@ -1,12 +1,11 @@
 <sect1 id="install-requirements" xreflabel="installation requirements">
 
-  <title>Requirements for installing repmgr</title>
-
   <indexterm>
    <primary>installation</primary>
    <secondary>requirements</secondary>
   </indexterm>
 
+  <title>Requirements for installing repmgr</title>
   <para>
     repmgr is developed and tested on Linux and OS X, but should work on any
     UNIX-like system supported by PostgreSQL itself. There is no support for
@@ -21,7 +20,7 @@
 
   <note>
    <simpara>
-    If upgrading from &repmgr; 3.x, please see the section <xref linkend="upgrading-from-repmgr-3"/>.
+    If upgrading from &repmgr; 3.x, please see the section <xref linkend="upgrading-from-repmgr-3">.
    </simpara>
   </note>
 
@@ -46,14 +45,14 @@
    </simpara>
    <simpara>
      If different &quot;major&quot; &repmgr; versions (e.g. 3.3.x and 4.1.x)
-     are installed on different nodes, in the best case &repmgr; (in particular &repmgrd;)
+     are installed on different nodes, in the best case &repmgr; (in particular <application>repmgrd</application>)
      will not run. In the worst case, you will end up with a broken cluster.
    </simpara>
   </note>
 
   <para>
    A dedicated system user for &repmgr; is <emphasis>not</emphasis> required; as many &repmgr; and
-   &repmgrd; actions require direct access to the PostgreSQL data directory,
+   <application>repmgrd</application> actions require direct access to the PostgreSQL data directory,
    these commands should be executed by the <literal>postgres</literal> user.
   </para>
 
@@ -73,8 +72,6 @@
 
   <sect2 id="install-compatibility-matrix">
 
-    <title>&repmgr; compatibility matrix</title>
-
     <indexterm>
       <primary>repmgr</primary>
       <secondary>compatibility matrix</secondary>
@@ -84,6 +81,7 @@
       <primary>compatibility matrix</primary>
     </indexterm>
 
+    <title>&repmgr; compatibility matrix</title>
     <para>
       The following table provides an overview of which &repmgr; version supports
       which PostgreSQL version.
@@ -93,7 +91,7 @@
     <table id="repmgr-compatibility-matrix">
       <title>&repmgr; compatibility matrix</title>
 
-      <tgroup cols="3">
+      <tgroup cols="2">
         <thead>
           <row>
             <entry>

doc/install-source.sgml

@@ -1,20 +1,19 @@
 <sect1 id="installation-source" xreflabel="Installing from source code">
+  <indexterm>
+   <primary>installation</primary>
+   <secondary>from source</secondary>
+  </indexterm>
 
  <title>Installing &repmgr; from source</title>
 
- <indexterm>
-  <primary>installation</primary>
-  <secondary>from source</secondary>
- </indexterm>
-
  <sect2 id="installation-source-prereqs">
   <title>Prerequisites for installing from source</title>
   <para>
    To install &repmgr; the prerequisites for compiling
    &postgres; must be installed. These are described in &postgres;'s
    documentation
-   on <ulink url="https://www.postgresql.org/docs/current/install-requirements.html">build requirements</ulink>
-   and <ulink url="https://www.postgresql.org/docs/current/docguide-toolsets.html">build requirements for documentation</ulink>.
+   on <ulink url="https://www.postgresql.org/docs/current/static/install-requirements.html">build requirements</ulink>
+   and <ulink url="https://www.postgresql.org/docs/current/static/docguide-toolsets.html">build requirements for documentation</ulink>.
   </para>
 
   <para>
@@ -62,28 +61,28 @@ deb-src http://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main</programlisti
          <itemizedlist spacing="compact" mark="bullet">
 
            <listitem>
-             <simpara><literal>libedit-dev</literal></simpara>
+             <simpara><literal>llibedit-dev</literal></simpara>
            </listitem>
            <listitem>
-             <simpara><literal>libkrb5-dev</literal></simpara>
+             <simpara><literal>llibkrb5-dev</literal></simpara>
            </listitem>
            <listitem>
-             <simpara><literal>libpam0g-dev</literal></simpara>
+             <simpara><literal>llibpam0g-dev</literal></simpara>
            </listitem>
            <listitem>
-             <simpara><literal>libreadline-dev</literal></simpara>
+             <simpara><literal>llibreadline-dev</literal></simpara>
            </listitem>
            <listitem>
-             <simpara><literal>libselinux1-dev</literal></simpara>
+             <simpara><literal>llibselinux1-dev</literal></simpara>
            </listitem>
            <listitem>
-             <simpara><literal>libssl-dev</literal></simpara>
+             <simpara><literal>llibssl-dev</literal></simpara>
            </listitem>
            <listitem>
-             <simpara><literal>libxml2-dev</literal></simpara>
+             <simpara><literal>llibxml2-dev</literal></simpara>
            </listitem>
            <listitem>
-             <simpara><literal>libxslt1-dev</literal></simpara>
+             <simpara><literal>llibxslt1-dev</literal></simpara>
            </listitem>
          </itemizedlist>
        </para>
@@ -137,16 +136,6 @@ deb-src http://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main</programlisti
          </itemizedlist>
        </para>
      </note>
-
-     <tip>
-       <para>
-         If building against PostgreSQL 11 or later configured with the <option>--with-llvm</option> option
-         (this is the case with the PGDG-provided packages) you'll also need to install the
-         <literal>llvm-toolset-7-clang</literal> package. This is available via the
-         <ulink url="https://wiki.centos.org/AdditionalResources/Repositories/SCL">Software Collections (SCL) Repository</ulink>.
-       </para>
-     </tip>
-
     </listitem>
    </itemizedlist>
   </para>
@@ -201,7 +190,7 @@ deb-src http://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main</programlisti
     &repmgr; website along with a tarball checksum and a matching GnuPG
     signature. See
     <ulink url="http://repmgr.org/">http://repmgr.org/</ulink>
-    for the download information. See <xref linkend="appendix-signatures"/>
+    for the download information. See <xref linkend="appendix-signatures">
     for information on verifying digital signatures.
    </para>
 
@@ -209,11 +198,11 @@ deb-src http://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main</programlisti
     You will need to download the repmgr source, e.g. <filename>repmgr-4.0.tar.gz</filename>.
     You may optionally verify the package checksums from the
     <literal>.md5</literal> files and/or verify the GnuPG signatures
-    per <xref linkend="appendix-signatures"/>.
+    per <xref linkend="appendix-signatures">.
    </para>
 
    <para>
-    After you unpack the source code archives using <command>tar xf</command>
+    After you unpack the source code archives using <literal>tar xf</literal>
     the installation process is the same as if you were installing from a git
     clone.
    </para>
@@ -228,7 +217,7 @@ deb-src http://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main</programlisti
    To installing &repmgr; from source, simply execute:
 
    <programlisting>
-    ./configure &amp;&amp; make install</programlisting>
+    ./configure && make install</programlisting>
 
    Ensure <command>pg_config</command> for the target PostgreSQL version is in
    <varname>$PATH</varname>.
@@ -237,30 +226,16 @@ deb-src http://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main</programlisti
 
 
 
- <sect2 id="installation-build-repmgr-docs" xreflabel="Building repmgr documentation">
+ <sect2 id="installation-build-repmgr-docs">
    <title>Building &repmgr; documentation</title>
    <para>
     The &repmgr; documentation is (like the main PostgreSQL project)
-    written in DocBook XML format. To build it locally as HTML, you'll need to
+    written in DocBook format. To build it locally as HTML, you'll need to
     install the required packages as described in the
-    <ulink url="https://www.postgresql.org/docs/current/docguide-toolsets.html">PostgreSQL documentation</ulink>.
-   </para>
-   <para>
-	 The minimum PostgreSQL version for building the &repmgr; documentation is
-	 PostgreSQL 9.5.
-   </para>
-
-   <note>
-     <simpara>
-       In &repmgr; 4.3 and earlier, the documentation can only be built against
-       PostgreSQL 9.6 or earlier.
-     </simpara>
-   </note>
-
-   <para>
-     To build the documentation as HTML, execute:
+    <ulink url="https://www.postgresql.org/docs/9.6/static/docguide-toolsets.html">
+      PostgreSQL documentation</ulink> then execute:
    <programlisting>
-    ./configure &amp;&amp; make doc</programlisting>
+    ./configure && make install-doc</programlisting>
    </para>
    <para>
      The generated HTML files will be placed in the <filename>doc/html</filename>
@@ -268,20 +243,19 @@ deb-src http://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main</programlisti
    </para>
 
    <para>
-     To build the documentation as a single HTML file, after configuring and building
-     the main &repmgr; source as described above, execute:
+     To build the documentation as a single HTML file, execute:
    <programlisting>
-     ./configure &amp;&amp; make doc-repmgr.html</programlisting>
+    cd doc/ && make repmgr.html</programlisting>
    </para>
 
-   <para>
-     To build the documentation as a PDF file, after configuring and building
-     the main &repmgr; source as described above, execute:
-   <programlisting>
-     ./configure &amp;&amp; make doc-repmgr-A4.pdf</programlisting>
-   </para>
-
-
+   <note>
+     <simpara>
+       Due to changes in PostgreSQL's documentation build system from PostgreSQL 10,
+       the documentation can currently only be built against PostgreSQL 9.6 or earlier.
+       This limitation will be fixed when time and resources permit.
+     </simpara>
+   </note>
  </sect2>
 
+
 </sect1>

doc/install.sgml

@@ -1,11 +1,10 @@
 <chapter id="installation" xreflabel="Installation">
-
- <title>Installation</title>
-
  <indexterm>
   <primary>installation</primary>
  </indexterm>
 
+ <title>Installation</title>
+
  <para>
   &repmgr; can be installed from binary packages provided by your operating
   system's packaging system, or from source.
@@ -19,7 +18,7 @@
   only option if there are no packages for your operating system yet.
  </para>
  <para>
-  Before installing &repmgr; make sure you satisfy the <xref linkend="install-requirements"/>.
+  Before installing &repmgr; make sure you satisfy the <xref linkend="install-requirements">.
  </para>
 
  &install-requirements;

doc/legal.sgml

@@ -1,9 +1,9 @@
-<!-- doc/legal.xml -->
+<!-- doc/legal.sgml -->
 
 <date>2017</date>
 
 <copyright>
- <year>2010-2019</year>
+ <year>2010-2018</year>
  <holder>2ndQuadrant, Ltd.</holder>
 </copyright>
 
@@ -11,7 +11,7 @@
  <title>Legal Notice</title>
 
  <para>
-  <productname>repmgr</productname> is Copyright &copy; 2010-2019
+  <productname>repmgr</productname> is Copyright &copy; 2010-2018
   by 2ndQuadrant, Ltd. All rights reserved.
  </para>
 

doc/overview.sgml

@@ -7,18 +7,18 @@
  </para>
  <sect1 id="repmgr-concepts" xreflabel="Concepts">
 
-  <title>Concepts</title>
-
   <indexterm>
     <primary>concepts</primary>
   </indexterm>
 
+  <title>Concepts</title>
+
   <para>
    This guide assumes that you are familiar with PostgreSQL administration and
    streaming replication concepts. For further details on streaming
    replication, see the PostgreSQL documentation section on <ulink
-   url="https://www.postgresql.org/docs/current/warm-standby.html#STREAMING-REPLICATION">
-   streaming replication</ulink>.
+   url="https://www.postgresql.org/docs/current/interactive/warm-standby.html#STREAMING-REPLICATION">
+   streaming replication</>.
   </para>
   <para>
    The following terms are used throughout the &repmgr; documentation.
@@ -58,7 +58,7 @@
      <listitem>
       <simpara>
        This is the action which occurs if a primary server fails and a suitable standby
-       is  promoted as the new primary. The &repmgrd; daemon supports automatic failover
+       is  promoted as the new primary. The <application>repmgrd</application> daemon supports automatic failover
        to minimise downtime.
       </simpara>
      </listitem>
@@ -107,7 +107,7 @@
         promotes a (local) standby.
       </para>
       <para>
-        A witness server only needs to be created if &repmgrd;
+        A witness server only needs to be created if <application>repmgrd</application>
         is in use.
       </para>
      </listitem>
@@ -198,7 +198,7 @@
         </listitem>
         <listitem>
           <simpara><literal>repmgr.monitoring_history</literal>: historical standby monitoring information
-            written by &repmgrd;</simpara>
+            written by <application>repmgrd</application></simpara>
         </listitem>
        </itemizedlist>
       </para>
@@ -214,7 +214,7 @@
            name of the server's upstream node</simpara>
         </listitem>
         <listitem>
-          <simpara>repmgr.replication_status: when &repmgrd;'s monitoring is enabled, shows
+          <simpara>repmgr.replication_status: when <application>repmgrd</application>'s monitoring is enabled, shows
             current monitoring status for each standby.</simpara>
         </listitem>
        </itemizedlist>

doc/promoting-standby.sgml

@@ -1,13 +1,13 @@
 <chapter id="promoting-standby" xreflabel="Promoting a standby">
- <title>Promoting a standby server with repmgr</title>
  <indexterm>
    <primary>promoting a standby</primary>
    <seealso>repmgr standby promote</seealso>
  </indexterm>
+ <title>Promoting a standby server with repmgr</title>
  <para>
    If a primary server fails or needs to be removed from the replication cluster,
    a new primary server must be designated, to ensure the cluster continues
-   to function correctly. This can be done with <xref linkend="repmgr-standby-promote"/>,
+   to function correctly. This can be done with <xref linkend="repmgr-standby-promote">,
    which promotes the standby on the current server to primary.
  </para>
 
@@ -31,7 +31,7 @@
   At this point the replication cluster will be in a partially disabled state, with
   both standbys accepting read-only connections while attempting to connect to the
   stopped primary. Note that the &repmgr; metadata table will not yet have been updated;
-  executing <xref linkend="repmgr-cluster-show"/> will note the discrepancy:
+  executing <xref linkend="repmgr-cluster-show"> will note the discrepancy:
   <programlisting>
     $ repmgr -f /etc/repmgr.conf cluster show
      ID | Name  | Role    | Status        | Upstream | Location | Connection string
@@ -60,7 +60,7 @@
     DETAIL: node 2 was successfully promoted to primary</programlisting>
  </para>
  <para>
-  Executing <xref linkend="repmgr-cluster-show"/> will show the current state; as there is now an
+  Executing <xref linkend="repmgr-cluster-show"> will show the current state; as there is now an
   active primary, the previous warning will not be displayed:
   <programlisting>
     $ repmgr -f /etc/repmgr.conf cluster show
@@ -72,8 +72,8 @@
  </para>
  <para>
   However the sole remaining standby (<literal>node3</literal>) is still trying to replicate from the failed
-  primary; <xref linkend="repmgr-standby-follow"/> must now be executed to rectify this situation
-  (see <xref linkend="follow-new-primary"/> for example).
+  primary; <xref linkend="repmgr-standby-follow"> must now be executed to rectify this situation
+  (see <xref linkend="follow-new-primary"> for example).
  </para>
 </chapter>
 

doc/quickstart.sgml

@@ -17,7 +17,7 @@
  <note>
    <simpara>
      To upgrade an existing &repmgr; 3.x installation, see section
-     <xref linkend="upgrading-from-repmgr-3"/>.
+     <xref linkend="upgrading-from-repmgr-3">.
    </simpara>
  </note>
 
@@ -76,25 +76,19 @@
    </para>
    <programlisting>
 
-    # Enable replication connections; set this value to at least one more
+    # Enable replication connections; set this figure to at least one more
     # than the number of standbys which will connect to this server
-    # (note that repmgr will execute "pg_basebackup" in WAL streaming mode,
-    # which requires two free WAL senders).
-    #
-    # See: https://www.postgresql.org/docs/current/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
+    # (note that repmgr will execute `pg_basebackup` in WAL streaming mode,
+    # which requires two free WAL senders)
 
     max_wal_senders = 10
 
-    # If using replication slots, set this value to at least one more
+    # Enable replication slots; set this figure to at least one more
     # than the number of standbys which will connect to this server.
     # Note that repmgr will only make use of replication slots if
-    # "use_replication_slots" is set to "true" in "repmgr.conf".
-    # (If you are not intending to use replication slots, this value
-    # can be set to "0").
-    #
-    # See: https://www.postgresql.org/docs/current/runtime-config-replication.html#GUC-MAX-REPLICATION-SLOTS
+    # "use_replication_slots" is set to "true" in repmgr.conf
 
-    max_replication_slots = 10
+    max_replication_slots = 0
 
     # Ensure WAL files contain enough information to enable read-only queries
     # on the standby.
@@ -103,47 +97,39 @@
     #  PostgreSQL 9.6 and later: one of 'replica' or 'logical'
     #    ('hot_standby' will still be accepted as an alias for 'replica')
     #
-    # See: https://www.postgresql.org/docs/current/runtime-config-wal.html#GUC-WAL-LEVEL
+    # See: https://www.postgresql.org/docs/current/static/runtime-config-wal.html#GUC-WAL-LEVEL
 
     wal_level = 'hot_standby'
 
     # Enable read-only queries on a standby
     # (Note: this will be ignored on a primary but we recommend including
-    # it anyway, in case the primary later becomes a standby)
-    #
-    # See: https://www.postgresql.org/docs/current/runtime-config-replication.html#GUC-HOT-STANDBY
+    # it anyway)
 
     hot_standby = on
 
     # Enable WAL file archiving
-    #
-    # See: https://www.postgresql.org/docs/current/runtime-config-wal.html#GUC-ARCHIVE-MODE
-
     archive_mode = on
 
-    # Set archive command to a dummy command; this can later be changed without
-    # needing to restart the PostgreSQL instance.
-    #
-    # See: https://www.postgresql.org/docs/current/runtime-config-wal.html#GUC-ARCHIVE-COMMAND
-
+    # Set archive command to a script or application that will safely store
+    # you WALs in a secure place. /bin/true is an example of a command that
+    # ignores archiving. Use something more sensible.
     archive_command = '/bin/true'
    </programlisting>
    <tip>
     <simpara>
       Rather than editing these settings in the default <filename>postgresql.conf</filename>
-      file, create a separate file such as <filename>postgresql.replication.conf</filename> and
+     file, create a separate file such as <filename>postgresql.replication.conf</filename> and
       include it from the end of the main configuration file with:
-     <command>include 'postgresql.replication.conf'</command>.
+     <command>include 'postgresql.replication.conf</command>.
     </simpara>
    </tip>
    <para>
      Additionally, if you are intending to use <application>pg_rewind</application>,
      and the cluster was not initialised using data checksums, you may want to consider enabling
-     <varname>wal_log_hints</varname>; for more details see <xref linkend="repmgr-node-rejoin-pg-rewind"/>.
+     <varname>wal_log_hints</varname>; for more details see <xref linkend="repmgr-node-rejoin-pg-rewind">.
    </para>
     <para>
-      See also the <link linkend="configuration-postgresql">PostgreSQL configuration</link> section in the
-      <link linkend="configuration">repmgr configuration guide</link>.
+      See also the <link linkend="configuration-postgresql">PostgreSQL configuration</link> section in the <link linkend="configuration">repmgr configuaration guide</link>.
     </para>
  </sect1>
 
@@ -238,7 +224,7 @@
   <note>
    <para>
     &repmgr; stores connection information as <ulink
-    url="https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-CONNSTRING">libpq
+    url="https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING">libpq
     connection strings</ulink> throughout. This documentation refers to them as <literal>conninfo</literal>
     strings; an alternative name is <literal>DSN</literal> (<literal>data source name</literal>).
     We'll use these in place of the <command>-h hostname -d databasename -U username</command> syntax.
@@ -262,7 +248,7 @@
   <para>
    <filename>repmgr.conf</filename> should not be stored inside the PostgreSQL data directory,
    as it could be overwritten when setting up or reinitialising the PostgreSQL
-   server. See sections <xref linkend="configuration"/> and <xref linkend="configuration-file"/>
+   server. See sections <xref linkend="configuration"> and <xref linkend="configuration-file">
    for further details about <filename>repmgr.conf</filename>.
   </para>
 
@@ -303,7 +289,7 @@
 
   <para>
    See the file
-   <ulink url="https://raw.githubusercontent.com/2ndQuadrant/repmgr/master/repmgr.conf.sample">repmgr.conf.sample</ulink>
+   <ulink url="https://raw.githubusercontent.com/2ndQuadrant/repmgr/master/repmgr.conf.sample">repmgr.conf.sample</>
     for details of all available configuration parameters.
   </para>
 
@@ -352,7 +338,7 @@
     slot_name        |
     config_file      | /etc/repmgr.conf</programlisting>
   <para>
-    Each server in the replication cluster will have its own record. If &repmgrd;
+    Each server in the replication cluster will have its own record. If <application>repmgrd</application>
     is in use, the fields <literal>upstream_node_id</literal>, <literal>active</literal> and
     <literal>type</literal> will be updated when the node's status or role changes.
   </para>
@@ -460,7 +446,7 @@
   </para>
   <para>
     From PostgreSQL 9.6 you can also use the view
-    <ulink url="https://www.postgresql.org/docs/current/monitoring-stats.html#PG-STAT-WAL-RECEIVER-VIEW">
+    <ulink url="https://www.postgresql.org/docs/current/static/monitoring-stats.html#PG-STAT-WAL-RECEIVER-VIEW">
     <literal>pg_stat_wal_receiver</literal></ulink> to check the replication status from the standby.
 
    <programlisting>

doc/repmgr-cluster-cleanup.sgml

@@ -38,7 +38,7 @@
     <title>Notes</title>
 
     <para>
-      Monitoring history will only be written if &repmgrd; is active, and
+      Monitoring history will only be written if <application>repmgrd</application> is active, and
       <varname>monitoring_history</varname> is set to <literal>true</literal> in
       <filename>repmgr.conf</filename>.
     </para>
@@ -69,8 +69,8 @@
   <refsect1>
     <title>See also</title>
     <para>
-      For more details see the sections <xref linkend="repmgrd-monitoring"/> and
-      <xref linkend="repmgrd-monitoring-configuration"/>.
+      For more details see the sections <xref linkend="repmgrd-monitoring"> and
+      <xref linkend="repmgrd-monitoring-configuration">.
     </para>
   </refsect1>
 

doc/repmgr-cluster-crosscheck.sgml

@@ -16,9 +16,9 @@
   <refsect1>
     <title>Description</title>
     <para>
-      <command>repmgr cluster crosscheck</command> is similar to <xref linkend="repmgr-cluster-matrix"/>,
+      <command>repmgr cluster crosscheck</command> is similar to <xref linkend="repmgr-cluster-matrix">,
         but cross-checks connections between each combination of nodes. In "Example 3" in
-        <xref linkend="repmgr-cluster-matrix"/> we have no information about the state of <literal>node3</literal>.
+        <xref linkend="repmgr-cluster-matrix"> we have no information about the state of <literal>node3</literal>.
         However by running <command>repmgr cluster crosscheck</command> it's possible to get a better
         overview of the cluster situation:
           <programlisting>
@@ -42,7 +42,7 @@
   <refsect1>
     <title>Exit codes</title>
     <para>
-      One of the following exit codes will be emitted by <command>repmgr cluster crosscheck</command>:
+      Following exit codes can be emitted by <command>repmgr cluster crosscheck</command>:
     </para>
     <variablelist>
 

doc/repmgr-cluster-event.sgml

@@ -40,12 +40,12 @@
           <simpara><literal>--node-name</literal>: restrict entries to node with this name</simpara>
         </listitem>
         <listitem>
-          <simpara><literal>--event</literal>: filter specific event (see <xref linkend="event-notifications"/> for a full list)</simpara>
+          <simpara><literal>--event</literal>: filter specific event (see <xref linkend="event-notifications"> for a full list)</simpara>
         </listitem>
       </itemizedlist>
     </para>
     <para>
-      The &quot;Details&quot; column can be omitted by providing <literal>--compact</literal>.
+      The "Details" column can be omitted by providing <literal>--terse</literal>.
     </para>
   </refsect1>
 
@@ -71,9 +71,9 @@
       <programlisting>
     $ repmgr -f /etc/repmgr.conf cluster event --event=standby_register
      Node ID | Name  | Event            | OK | Timestamp           | Details
-    ---------+-------+------------------+----+---------------------+-------------------------------------------------------
-     3       | node3 | standby_register | t  | 2019-04-16 10:59:59 | standby registration succeeded; upstream node ID is 1
-     2       | node2 | standby_register | t  | 2019-04-16 10:59:57 | standby registration succeeded; upstream node ID is 1</programlisting>
+    ---------+-------+------------------+----+---------------------+--------------------------------
+     3       | node3 | standby_register | t  | 2017-08-17 10:28:55 | standby registration succeeded
+     2       | node2 | standby_register | t  | 2017-08-17 10:28:53 | standby registration succeeded</programlisting>
     </para>
   </refsect1>
 </refentry>

doc/repmgr-cluster-matrix.sgml

@@ -93,7 +93,7 @@
    connection from <literal>node3</literal>.
   </para>
   <para>
-    In this case, the <xref linkend="repmgr-cluster-crosscheck"/> command will produce a more
+    In this case, the <xref linkend="repmgr-cluster-crosscheck"> command will produce a more
     useful result.
   </para>
   </refsect1>
@@ -102,7 +102,7 @@
   <refsect1>
     <title>Exit codes</title>
     <para>
-      One of the following exit codes will be emitted by <command>repmgr cluster matrix</command>:
+      Following exit codes can be emitted by <command>repmgr cluster matrix</command>:
     </para>
     <variablelist>
 

doc/repmgr-cluster-show.sgml

@@ -0,0 +1,192 @@
+<refentry id="repmgr-cluster-show">
+  <indexterm>
+    <primary>repmgr cluster show</primary>
+  </indexterm>
+
+  <refmeta>
+    <refentrytitle>repmgr cluster show</refentrytitle>
+  </refmeta>
+
+  <refnamediv>
+    <refname>repmgr cluster show</refname>
+    <refpurpose>display information about each registered node in the replication cluster</refpurpose>
+  </refnamediv>
+
+
+  <refsect1>
+    <title>Description</title>
+    <para>
+      Displays information about each registered node in the replication cluster. This
+      command polls each registered server and shows its role (<literal>primary</literal> /
+      <literal>standby</literal> / <literal>bdr</literal>) and status. It polls each server
+      directly and can be run on any node in the cluster; this is also useful when analyzing
+      connectivity from a particular node.
+    </para>
+  </refsect1>
+
+  <refsect1>
+    <title>Execution</title>
+    <para>
+      This command requires either a valid <filename>repmgr.conf</filename> file or a database
+      connection string to one of the registered nodes; no additional arguments are needed.
+    </para>
+
+    <para>
+      To show database connection errors when polling nodes, run the command in
+      <literal>--verbose</literal> mode.
+    </para>
+
+  </refsect1>
+
+  <refsect1>
+    <title>Example</title>
+    <para>
+    <programlisting>
+    $ repmgr -f /etc/repmgr.conf cluster show
+
+     ID | Name  | Role    | Status    | Upstream | Location | Connection string
+    ----+-------+---------+-----------+----------+----------+-----------------------------------------
+     1  | node1 | primary | * running |          | default  | host=db_node1 dbname=repmgr user=repmgr
+     2  | node2 | standby |   running | node1    | default  | host=db_node2 dbname=repmgr user=repmgr
+     3  | node3 | standby |   running | node1    | default  | host=db_node3 dbname=repmgr user=repmgr</programlisting>
+  </para>
+  </refsect1>
+  <refsect1>
+    <title>Notes</title>
+    <para>
+      The column <literal>Role</literal> shows the expected server role according to the
+      &repmgr; metadata. <literal>Status</literal> shows whether the server is running or unreachable.
+      If the node has an unexpected role not reflected in the &repmgr; metadata, e.g. a node was manually
+      promoted to primary, this will be highlighted with an exclamation mark, e.g.:
+      <programlisting>
+    $ repmgr -f /etc/repmgr.conf cluster show
+
+     ID | Name  | Role    | Status               | Upstream | Location | Connection string
+    ----+-------+---------+----------------------+----------+----------+-----------------------------------------
+     1  | node1 | primary | ? unreachable        |          | default  | host=db_node1 dbname=repmgr user=repmgr
+     2  | node2 | standby | ! running as primary | node1    | default  | host=db_node2 dbname=repmgr user=repmgr
+     3  | node3 | standby |   running            | node1    | default  | host=db_node3 dbname=repmgr user=repmgr
+
+    WARNING: following issues were detected
+      node "node1" (ID: 1) is registered as an active primary but is unreachable
+      node "node2" (ID: 2) is registered as standby but running as primary</programlisting>
+    </para>
+    <para>
+      Node availability is tested by connecting from the node where
+      <command>repmgr cluster show</command> is executed, and does not necessarily imply the node
+      is down. See <xref linkend="repmgr-cluster-matrix"> and <xref linkend="repmgr-cluster-crosscheck"> to get
+          a better overviews of connections between nodes.
+    </para>
+  </refsect1>
+
+  <refsect1>
+    <title>Options</title>
+
+    <variablelist>
+
+      <varlistentry>
+        <term><option>--csv</option></term>
+        <listitem>
+		  <para>
+			<command>repmgr cluster show</command> accepts an optional parameter <literal>--csv</literal>, which
+			outputs the replication cluster's status in a simple CSV format, suitable for
+			parsing by scripts, e.g.:
+			<programlisting>
+    $ repmgr -f /etc/repmgr.conf cluster show --csv
+    1,-1,-1
+    2,0,0
+    3,0,1</programlisting>
+		  </para>
+		  <para>
+			The columns have following meanings:
+			<itemizedlist spacing="compact" mark="bullet">
+			  <listitem>
+				<simpara>
+				  node ID
+				</simpara>
+			  </listitem>
+			  <listitem>
+				<simpara>
+            availability (0 = available, -1 = unavailable)
+				</simpara>
+			  </listitem>
+			  <listitem>
+				<simpara>
+				  recovery state (0 = not in recovery, 1 = in recovery, -1 = unknown)
+				</simpara>
+			  </listitem>
+			</itemizedlist>
+		  </para>
+		</listitem>
+	  </varlistentry>
+
+      <varlistentry>
+        <term><option>--verbose</option></term>
+        <listitem>
+          <para>
+			Display the full text of any database connection error messages
+          </para>
+        </listitem>
+      </varlistentry>
+
+	</variablelist>
+
+  </refsect1>
+
+
+  <refsect1>
+    <title>Exit codes</title>
+    <para>
+      Following exit codes can be emitted by <command>repmgr cluster show</command>:
+    </para>
+    <variablelist>
+
+      <varlistentry>
+        <term><option>SUCCESS (0)</option></term>
+        <listitem>
+          <para>
+            No issues were detected.
+          </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>ERR_BAD_CONFIG (1)</option></term>
+        <listitem>
+          <para>
+            An issue was encountered while attempting to retrieve
+            &repmgr; metadata.
+          </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>ERR_DB_CONN (6)</option></term>
+        <listitem>
+          <para>
+            &repmgr; was unable to connect to the local PostgreSQL instance.
+          </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>ERR_NODE_STATUS (25)</option></term>
+        <listitem>
+          <para>
+            One or more issues were detected with the replication configuration,
+            e.g. a node was not in its expected state.
+          </para>
+        </listitem>
+      </varlistentry>
+
+   </variablelist>
+  </refsect1>
+
+  <refsect1>
+    <title>See also</title>
+    <para>
+     <xref linkend="repmgr-node-status">, <xref linkend="repmgr-node-check">, <xref linkend="repmgr-daemon-status">
+    </para>
+  </refsect1>
+
+</refentry>

doc/repmgr-cluster-show.xml

@@ -1,240 +0,0 @@
-<refentry id="repmgr-cluster-show">
-  <indexterm>
-    <primary>repmgr cluster show</primary>
-  </indexterm>
-
-  <refmeta>
-    <refentrytitle>repmgr cluster show</refentrytitle>
-  </refmeta>
-
-  <refnamediv>
-    <refname>repmgr cluster show</refname>
-    <refpurpose>display information about each registered node in the replication cluster</refpurpose>
-  </refnamediv>
-
-
-  <refsect1>
-    <title>Description</title>
-    <para>
-      Displays information about each registered node in the replication cluster. This
-      command polls each registered server and shows its role (<literal>primary</literal> /
-      <literal>standby</literal> / <literal>bdr</literal>) and status. It polls each server
-      directly and can be run on any node in the cluster; this is also useful when analyzing
-      connectivity from a particular node.
-    </para>
-	<para>
-	  For PostgreSQL 9.6 and later, the output will also contain the node's current timeline ID.
-	</para>
-    <para>
-      Node availability is tested by connecting from the node where
-      <command>repmgr cluster show</command> is executed, and does not necessarily imply the node
-      is down. See <xref linkend="repmgr-cluster-matrix"/> and <xref linkend="repmgr-cluster-crosscheck"/> to get
-      better overviews of connections between nodes.
-    </para>
-
-  </refsect1>
-
-  <refsect1>
-    <title>Execution</title>
-    <para>
-      This command requires either a valid <filename>repmgr.conf</filename> file or a database
-      connection string to one of the registered nodes; no additional arguments are needed.
-    </para>
-
-    <para>
-      To show database connection errors when polling nodes, run the command in
-      <literal>--verbose</literal> mode.
-    </para>
-
-  </refsect1>
-
-  <refsect1>
-    <title>Example</title>
-    <para>
-    <programlisting>
-    $ repmgr -f /etc/repmgr.conf cluster show
-
-     ID | Name  | Role    | Status    | Upstream | Location | Priority | Timeline | Connection string
-    ----+-------+---------+-----------+----------+----------+----------+-----------------------------------------
-     1  | node1 | primary | * running |          | default  | 100      | 1        | host=db_node1 dbname=repmgr user=repmgr
-     2  | node2 | standby |   running | node1    | default  | 100      | 1        | host=db_node2 dbname=repmgr user=repmgr
-     3  | node3 | standby |   running | node1    | default  | 100      | 1        | host=db_node3 dbname=repmgr user=repmgr</programlisting>
-  </para>
-  </refsect1>
-  <refsect1>
-    <title>Notes</title>
-    <para>
-      The column <literal>Role</literal> shows the expected server role according to the
-      &repmgr; metadata.
-	</para>
-	<para>
-	  <literal>Status</literal> shows whether the server is running or unreachable.
-      If the node has an unexpected role not reflected in the &repmgr; metadata, e.g. a node was manually
-      promoted to primary, this will be highlighted with an exclamation mark.
-	  If a connection to the node cannot be made, this will be highlighted with a question mark.
-	  Note that the node will only be shown as <literal>? unreachable</literal>
-	  if a connection is not possible at network level; if the PostgreSQL instance on the
-	  node is pingable but not accepting connections, it will be shown as <literal>? running</literal>.
-	</para>
-	<para>
-	  In the following example, executed on <literal>node3</literal>, <literal>node1</literal> is not reachable
-	  at network level and assumed to be down; <literal>node2</literal> has been promoted to primary
-	  (but <literal>node3</literal> is not attached to it, and its metadata has not yet been updated);
-	  <literal>node4</literal> is running but rejecting connections (from <literal>node3</literal> at least).
-      <programlisting>
-	 ID | Name  | Role    | Status               | Upstream | Location | Priority | Connection string
-	----+-------+---------+----------------------+----------+----------+----------+-----------------------------------------
-	 1  | node1 | primary | ? unreachable        |          | default  | 100      | host=db_node1 dbname=repmgr user=repmgr
-	 2  | node2 | standby | ! running as primary | node1    | default  | 100      | host=db_node2 dbname=repmgr user=repmgr
-	 3  | node3 | standby |   running            | node1    | default  | 100      | host=db_node3 dbname=repmgr user=repmgr
-	 4  | node4 | standby | ? running            | node1    | default  | 100      | host=db_node4 dbname=repmgr user=repmgr
-
-	WARNING: following issues were detected
-	  - unable to connect to node "node1" (ID: 1)
-	  - node "node1" (ID: 1) is registered as an active primary but is unreachable
-	  - node "node2" (ID: 2) is registered as standby but running as primary
-	  - unable to connect to node "node4" (ID: 4)
-    HINT: execute with --verbose option to see connection error messages</programlisting>
-    </para>
-	<para>
-	  To diagnose connection issues, execute <command>repmgr cluster show</command>
-	  with the <option>--verbose</option> option; this will display the error message
-	  for each failed connection attempt.
-	</para>
-	<tip>
-	  <para>
-		Use <xref linkend="repmgr-cluster-matrix"/> and <xref linkend="repmgr-cluster-crosscheck"/>
-		to diagnose connection issues across the whole replication cluster.
-	  </para>
-	</tip>
-  </refsect1>
-
-  <refsect1>
-    <title>Options</title>
-
-    <variablelist>
-
-      <varlistentry>
-        <term><option>--csv</option></term>
-        <listitem>
-	  <para>
-	    <command>repmgr cluster show</command> accepts an optional parameter <literal>--csv</literal>, which
-	    outputs the replication cluster's status in a simple CSV format, suitable for
-	    parsing by scripts, e.g.:
-	    <programlisting>
-    $ repmgr -f /etc/repmgr.conf cluster show --csv
-    1,-1,-1
-    2,0,0
-    3,0,1</programlisting>
-	  </para>
-	  <para>
-	    The columns have following meanings:
-	    <itemizedlist spacing="compact" mark="bullet">
-	      <listitem>
-		<simpara>
-		  node ID
-		</simpara>
-	      </listitem>
-	      <listitem>
-		<simpara>
-            availability (0 = available, -1 = unavailable)
-		</simpara>
-	      </listitem>
-	      <listitem>
-		<simpara>
-            recovery state (0 = not in recovery, 1 = in recovery, -1 = unknown)
-		</simpara>
-	      </listitem>
-	    </itemizedlist>
-	  </para>
-	</listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>--compact</option></term>
-        <listitem>
-          <para>
-			Suppress display of the <literal>conninfo</literal> column.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>--terse</option></term>
-        <listitem>
-          <para>
-			Suppress warnings about connection issues.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>--verbose</option></term>
-        <listitem>
-          <para>
-			Display the full text of any database connection error messages
-          </para>
-        </listitem>
-      </varlistentry>
-
-	</variablelist>
-
-  </refsect1>
-
-
-  <refsect1>
-    <title>Exit codes</title>
-    <para>
-      One of the following exit codes will be emitted by <command>repmgr cluster show</command>:
-    </para>
-    <variablelist>
-
-      <varlistentry>
-        <term><option>SUCCESS (0)</option></term>
-        <listitem>
-          <para>
-            No issues were detected.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>ERR_BAD_CONFIG (1)</option></term>
-        <listitem>
-          <para>
-            An issue was encountered while attempting to retrieve
-            &repmgr; metadata.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>ERR_DB_CONN (6)</option></term>
-        <listitem>
-          <para>
-            &repmgr; was unable to connect to the local PostgreSQL instance.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>ERR_NODE_STATUS (25)</option></term>
-        <listitem>
-          <para>
-            One or more issues were detected with the replication configuration,
-            e.g. a node was not in its expected state.
-          </para>
-        </listitem>
-      </varlistentry>
-
-   </variablelist>
-  </refsect1>
-
-  <refsect1>
-    <title>See also</title>
-    <para>
-     <xref linkend="repmgr-node-status"/>, <xref linkend="repmgr-node-check"/>, <xref linkend="repmgr-daemon-status"/>
-    </para>
-  </refsect1>
-
-</refentry>

doc/repmgr-daemon-pause.sgml

@@ -3,41 +3,36 @@
     <primary>repmgr daemon pause</primary>
   </indexterm>
 
-  <indexterm>
-    <primary>repmgrd</primary>
-    <secondary>pausing</secondary>
-  </indexterm>
-
   <refmeta>
     <refentrytitle>repmgr daemon pause</refentrytitle>
   </refmeta>
 
   <refnamediv>
     <refname>repmgr daemon pause</refname>
-    <refpurpose>Instruct all &repmgrd; instances in the replication cluster to pause failover operations</refpurpose>
+    <refpurpose>Instruct all <application>repmgrd</application> instances in the replication cluster to pause failover operations</refpurpose>
   </refnamediv>
 
   <refsect1>
     <title>Description</title>
     <para>
       This command can be run on any active node in the replication cluster to instruct all
-      running &repmgrd; instances to &quot;pause&quot; themselves, i.e. take no
+      running <application>repmgrd</application> instances to &quot;pause&quot; themselves, i.e. take no
       action (such as promoting themselves or following a new primary) if a failover event is detected.
     </para>
     <para>
       This functionality is useful for performing maintenance operations, such as switchovers
-      or upgrades, which might otherwise trigger a failover if &repmgrd;
+      or upgrades, which might otherwise trigger a failover if <application>repmgrd</application>
       is running normally.
     </para>
     <note>
       <para>
         It's important to wait a few seconds after restarting PostgreSQL on any node before running
-        <command>repmgr daemon pause</command>, as the &repmgrd; instance
+        <command>repmgr daemon pause</command>, as the <application>repmgrd</application> instance
         on the restarted node will take a second or two before it has updated its status.
       </para>
     </note>
     <para>
-      <xref linkend="repmgr-daemon-unpause"/> will instruct all previously paused &repmgrd;
+      <xref linkend="repmgr-daemon-unpause"> will instruct all previously paused <application>repmgrd</application>
       instances to resume normal failover operation.
     </para>
   </refsect1>
@@ -69,7 +64,7 @@ NOTICE: node 3 (node3) paused</programlisting>
         <term><option>--dry-run</option></term>
         <listitem>
           <para>
-            Check if nodes are reachable but don't pause &repmgrd;.
+            Check if nodes are reachable but don't pause <application>repmgrd</application>.
           </para>
         </listitem>
       </varlistentry>
@@ -79,7 +74,7 @@ NOTICE: node 3 (node3) paused</programlisting>
   <refsect1>
     <title>Exit codes</title>
     <para>
-      One of the following exit codes will be emitted by <command>repmgr daemon unpause</command>:
+      Following exit codes can be emitted by <command>repmgr daemon unpause</command>:
     </para>
     <variablelist>
 
@@ -87,7 +82,7 @@ NOTICE: node 3 (node3) paused</programlisting>
         <term><option>SUCCESS (0)</option></term>
         <listitem>
           <para>
-            &repmgrd; could be paused on all nodes.
+            <application>repmgrd</application> could be paused on all nodes.
           </para>
         </listitem>
       </varlistentry>
@@ -96,7 +91,7 @@ NOTICE: node 3 (node3) paused</programlisting>
         <term><option>ERR_REPMGRD_PAUSE (26)</option></term>
         <listitem>
           <para>
-           &repmgrd; could not be paused on one or mode nodes.
+           <application>repmgrd</application> could not be paused on one or mode nodes.
           </para>
         </listitem>
       </varlistentry>
@@ -107,7 +102,7 @@ NOTICE: node 3 (node3) paused</programlisting>
   <refsect1>
     <title>See also</title>
     <para>
-      <xref linkend="repmgr-daemon-unpause"/>, <xref linkend="repmgr-daemon-status"/>
+      <xref linkend="repmgr-daemon-unpause">, <xref linkend="repmgr-daemon-status">
     </para>
   </refsect1>
 </refentry>

doc/repmgr-daemon-start.xml

@@ -1,204 +0,0 @@
-<refentry id="repmgr-daemon-start">
-  <indexterm>
-    <primary>repmgr daemon start</primary>
-  </indexterm>
-
-  <indexterm>
-    <primary>repmgrd</primary>
-    <secondary>starting</secondary>
-  </indexterm>
-
-  <refmeta>
-    <refentrytitle>repmgr daemon start</refentrytitle>
-  </refmeta>
-
-  <refnamediv>
-    <refname>repmgr daemon start</refname>
-    <refpurpose>Start the &repmgrd; daemon</refpurpose>
-  </refnamediv>
-
-  <refsect1>
-    <title>Description</title>
-    <para>
-      This command starts the &repmgrd; daemon on the
-      local node.
-    </para>
-    <para>
-      By default, &repmgr; will wait for up to 15 seconds to confirm that &repmgrd;
-      started. This behaviour can be overridden by specifying a diffent value using the <option>--wait</option>
-      option, or disabled altogether with the <option>--no-wait</option> option.
-    </para>
-
-    <important>
-      <para>
-        The <filename>repmgr.conf</filename> parameter <varname>repmgrd_service_start_command</varname>
-        must be set for <command>repmgr daemon start</command> to work; see section
-        <xref linkend="repmgr-daemon-start-configuration"/> for details.
-      </para>
-    </important>
-  </refsect1>
-
-
-
-  <refsect1>
-
-    <title>Options</title>
-
-    <variablelist>
-
-      <varlistentry>
-        <term><option>--dry-run</option></term>
-        <listitem>
-          <para>
-            Check prerequisites but don't actually attempt to start &repmgrd;.
-          </para>
-          <para>
-            This action will output the command which would be executed.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>-w</option></term>
-        <term><option>--wait</option></term>
-        <listitem>
-          <para>
-            Wait for the specified number of seconds to confirm that &repmgrd;
-            started successfully.
-          </para>
-          <para>
-            Note that providing <option>--wait=0</option> is the equivalent of <option>--no-wait</option>.
-          </para>
-
-         </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>--no-wait</option></term>
-        <listitem>
-          <para>
-            Don't wait to confirm that &repmgrd;
-            started successfully.
-          </para>
-          <para>
-            This is equivalent to providing <option>--wait=0</option>.
-          </para>
-         </listitem>
-      </varlistentry>
-
-    </variablelist>
-  </refsect1>
-
-  <refsect1 id="repmgr-daemon-start-configuration" xreflabel="repmgr daemon start configuration">
-    <title>Configuration file settings</title>
-    <para>
-     The following parameter in <filename>repmgr.conf</filename> is relevant
-     to <command>repmgr daemon start</command>:
-    </para>
-
-    <variablelist>
-
-      <varlistentry>
-
-        <term><option>repmgrd_service_start_command</option></term>
-        <listitem>
-          <indexterm>
-            <primary>repmgrd_service_start_command</primary>
-            <secondary>with &quot;repmgr daemon start&quot;</secondary>
-          </indexterm>
-
-          <para>
-            <command>repmgr daemon start</command> will execute the command defined by the
-            <varname>repmgrd_service_start_command</varname> parameter in <filename>repmgr.conf</filename>.
-            This must be set to a shell command which will start &repmgrd;;
-            if &repmgr; was installed from a package, this will be the service command defined by the
-            package. For more details see <link linkend="appendix-packages">Appendix: &repmgr; package details</link>.
-          </para>
-          <important>
-            <para>
-              If &repmgr; was installed from a system package, and you do not configure
-              <varname>repmgrd_service_start_command</varname> to an appropriate service command, this may
-              result in the system becoming confused about the state of the &repmgrd;
-              service; this is particularly the case with <literal>systemd</literal>.
-            </para>
-          </important>
-        </listitem>
-      </varlistentry>
-    </variablelist>
-
-  </refsect1>
-
-
-  <refsect1>
-    <title>Exit codes</title>
-    <para>
-      One of the following exit codes will be emitted by <command>repmgr daemon start</command>:
-    </para>
-    <variablelist>
-
-      <varlistentry>
-        <term><option>SUCCESS (0)</option></term>
-        <listitem>
-          <para>
-            The &repmgrd; start command (defined in
-            <varname>repmgrd_service_start_command</varname>) was successfully executed.
-          </para>
-          <para>
-            If the <option>--wait</option> option was provided, &repmgr; will confirm that
-            &repmgrd; has actually started up.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>ERR_BAD_CONFIG (1)</option></term>
-        <listitem>
-          <para>
-            <varname>repmgrd_service_start_command</varname> is not defined in
-            <filename>repmgr.conf</filename>.
-          </para>
-        </listitem>
-      </varlistentry>
-
-
-      <varlistentry>
-        <term><option>ERR_DB_CONN (6)</option></term>
-        <listitem>
-          <para>
-            &repmgr; was unable to connect to the local PostgreSQL node.
-          </para>
-          <para>
-            PostgreSQL must be running before &repmgrd;
-            can be started. Additionally, unless the <option>--no-wait</option> option was
-            provided, &repmgr; needs to be able to connect to the local PostgreSQL node
-            to determine the state of &repmgrd;.
-          </para>
-        </listitem>
-      </varlistentry>
-
-
-      <varlistentry>
-        <term><option>ERR_REPMGRD_SERVICE (27)</option></term>
-        <listitem>
-          <para>
-            The &repmgrd; start command (defined in
-            <varname>repmgrd_service_start_command</varname>) was not successfully executed.
-          </para>
-          <para>
-            This can also mean that &repmgr; was unable to confirm whether &repmgrd;
-            successfully started (unless the <option>--no-wait</option> option was provided).
-          </para>
-        </listitem>
-      </varlistentry>
-
-    </variablelist>
-  </refsect1>
-
-  <refsect1>
-    <title>See also</title>
-    <para>
-      <xref linkend="repmgr-daemon-stop"/>, <xref linkend="repmgr-daemon-status"/>, <xref linkend="repmgrd-daemon"/>
-    </para>
-  </refsect1>
-
-</refentry>

doc/repmgr-daemon-status.sgml

@@ -0,0 +1,165 @@
+<refentry id="repmgr-daemon-status">
+  <indexterm>
+    <primary>repmgr daemon status</primary>
+  </indexterm>
+
+  <refmeta>
+    <refentrytitle>repmgr daemon status</refentrytitle>
+  </refmeta>
+
+  <refnamediv>
+    <refname>repmgr daemon status</refname>
+    <refpurpose>display information about the status of <application>repmgrd</application> on each node in the cluster</refpurpose>
+  </refnamediv>
+
+  <refsect1>
+    <title>Description</title>
+    <para>
+      This command provides an overview over all active nodes in the cluster and the state
+      of each node's <application>repmgrd</application> instance. It can be used to check
+      the result of <xref linkend="repmgr-daemon-pause"> and <xref linkend="repmgr-daemon-unpause">
+      operations.
+    </para>
+  </refsect1>
+
+  <refsect1>
+    <title>Execution</title>
+    <para>
+      <command>repmgr daemon status</command> can be executed on any active node in the
+      replication cluster. A valid <filename>repmgr.conf</filename> file is required.
+    </para>
+
+    <note>
+      <para>
+        After restarting PostgreSQL on any node, the <application>repmgrd</application> instance
+        will take a second or two before it is able to update its status. Until then,
+        <application>repmgrd</application> will be shown as not running.
+      </para>
+    </note>
+
+  </refsect1>
+
+  <refsect1>
+    <title>Examples</title>
+    <para>
+      <application>repmgrd</application> running normally on all nodes:
+    <programlisting>$ repmgr -f /etc/repmgr.conf daemon status
+ ID | Name  | Role    | Status  | repmgrd | PID  | Paused?
+----+-------+---------+---------+---------+------+---------
+ 1  | node1 | primary | running | running | 7851 | no
+ 2  | node2 | standby | running | running | 7889 | no
+ 3  | node3 | standby | running | running | 7918 | no</programlisting>
+    </para>
+
+    <para>
+      <application>repmgrd</application> paused on all nodes (using <xref linkend="repmgr-daemon-pause">):
+    <programlisting>$ repmgr -f /etc/repmgr.conf daemon status
+ ID | Name  | Role    | Status  | repmgrd | PID  | Paused?
+----+-------+---------+---------+---------+------+---------
+ 1  | node1 | primary | running | running | 7851 | yes
+ 2  | node2 | standby | running | running | 7889 | yes
+ 3  | node3 | standby | running | running | 7918 | yes</programlisting>
+    </para>
+
+    <para>
+      <application>repmgrd</application> not running on one node:
+    <programlisting>$ repmgr -f /etc/repmgr.conf daemon status
+ ID | Name  | Role    | Status  | repmgrd     | PID  | Paused?
+----+-------+---------+---------+-------------+------+---------
+ 1  | node1 | primary | running | running     | 7851 | yes
+ 2  | node2 | standby | running | not running | n/a  | n/a
+ 3  | node3 | standby | running | running     | 7918 | yes</programlisting>
+    </para>
+
+  </refsect1>
+
+  <refsect1>
+    <title>Options</title>
+
+    <variablelist>
+
+      <varlistentry>
+        <term><option>--csv</option></term>
+        <listitem>
+		  <para>
+			<command>repmgr daemon status</command> accepts an optional parameter <literal>--csv</literal>, which
+			outputs the replication cluster's status in a simple CSV format, suitable for
+			parsing by scripts, e.g.:
+			<programlisting>
+    $ repmgr -f /etc/repmgr.conf daemon status --csv
+    1,node1,primary,1,1,10204,1
+    2,node2,standby,1,0,-1,1
+    3,node3,standby,1,1,10225,1</programlisting>
+		  </para>
+		  <para>
+			The columns have following meanings:
+			<itemizedlist spacing="compact" mark="bullet">
+			  <listitem>
+				<simpara>
+				  node ID
+				</simpara>
+			  </listitem>
+
+			  <listitem>
+				<simpara>
+                  node name
+				</simpara>
+			  </listitem>
+
+			  <listitem>
+				<simpara>
+                  node type (primary or standby)
+				</simpara>
+			  </listitem>
+
+			  <listitem>
+				<simpara>
+                  PostgreSQL server running
+				</simpara>
+			  </listitem>
+
+			  <listitem>
+				<simpara>
+                  <application>repmgrd</application> running (1 = running, 0 = not running)
+				</simpara>
+			  </listitem>
+
+			  <listitem>
+				<simpara>
+                  <application>repmgrd</application> PID (-1 if not running)
+				</simpara>
+			  </listitem>
+
+			  <listitem>
+				<simpara>
+                  <application>repmgrd</application> paused (1 = paused, 0 = not paused)
+				</simpara>
+			  </listitem>
+
+			</itemizedlist>
+		  </para>
+		</listitem>
+	  </varlistentry>
+
+      <varlistentry>
+        <term><option>--verbose</option></term>
+        <listitem>
+          <para>
+			Display the full text of any database connection error messages
+          </para>
+        </listitem>
+      </varlistentry>
+
+	</variablelist>
+
+  </refsect1>
+
+
+
+  <refsect1>
+    <title>See also</title>
+    <para>
+      <xref linkend="repmgr-daemon-pause">, <xref linkend="repmgr-daemon-unpause">, <xref linkend="repmgr-cluster-show">
+    </para>
+  </refsect1>
+</refentry>

doc/repmgr-daemon-status.xml

@@ -1,198 +0,0 @@
-<refentry id="repmgr-daemon-status">
-  <indexterm>
-    <primary>repmgr daemon status</primary>
-  </indexterm>
-
-  <indexterm>
-    <primary>repmgrd</primary>
-    <secondary>displaying daemon status</secondary>
-  </indexterm>
-
-  <refmeta>
-    <refentrytitle>repmgr daemon status</refentrytitle>
-  </refmeta>
-
-  <refnamediv>
-    <refname>repmgr daemon status</refname>
-    <refpurpose>display information about the status of &repmgrd; on each node in the cluster</refpurpose>
-  </refnamediv>
-
-  <refsect1>
-    <title>Description</title>
-    <para>
-      This command provides an overview over all active nodes in the cluster and the state
-      of each node's &repmgrd; instance. It can be used to check
-      the result of <xref linkend="repmgr-daemon-pause"/> and <xref linkend="repmgr-daemon-unpause"/>
-      operations.
-    </para>
-  </refsect1>
-
-  <refsect1>
-    <title>Execution</title>
-    <para>
-      <command>repmgr daemon status</command> can be executed on any active node in the
-      replication cluster. A valid <filename>repmgr.conf</filename> file is required.
-    </para>
-    <para>
-      If PostgreSQL is not running on a node, &repmgr; will not be able to determine the
-      status of that node's &repmgrd; instance.
-    </para>
-    <note>
-      <para>
-        After restarting PostgreSQL on any node, the &repmgrd; instance
-        will take a second or two before it is able to update its status. Until then,
-        &repmgrd; will be shown as not running.
-      </para>
-    </note>
-
-  </refsect1>
-
-  <refsect1>
-    <title>Examples</title>
-    <para>
-      &repmgrd; running normally on all nodes:
-    <programlisting>$ repmgr -f /etc/repmgr.conf daemon status
- ID | Name  | Role    | Status    | Upstream | repmgrd | PID   | Paused? | Upstream last seen
-----+-------+---------+-----------+----------+---------+-------+---------+--------------------
- 1  | node1 | primary | * running |          | running | 96563 | no      | n/a
- 2  | node2 | standby |   running | node1    | running | 96572 | no      | 1 second(s) ago
- 3  | node3 | standby |   running | node1    | running | 96584 | no      | 0 second(s) ago</programlisting>
-    </para>
-
-    <para>
-      &repmgrd; paused on all nodes (using <xref linkend="repmgr-daemon-pause"/>):
-    <programlisting>$ repmgr -f /etc/repmgr.conf daemon status
- ID | Name  | Role    | Status    | Upstream | repmgrd | PID   | Paused? | Upstream last seen
-----+-------+---------+-----------+----------+---------+-------+---------+--------------------
- 1  | node1 | primary | * running |          | running | 96563 | yes     | n/a
- 2  | node2 | standby |   running | node1    | running | 96572 | yes     | 1 second(s) ago
- 3  | node3 | standby |   running | node1    | running | 96584 | yes     | 0 second(s) ago</programlisting>
-    </para>
-
-    <para>
-      &repmgrd; not running on one node:
-    <programlisting>$ repmgr -f /etc/repmgr.conf daemon status
- ID | Name  | Role    | Status    | Upstream | repmgrd     | PID   | Paused? | Upstream last seen
-----+-------+---------+-----------+----------+-------------+-------+---------+--------------------
- 1  | node1 | primary | * running |          | running     | 96563 | yes     | n/a
- 2  | node2 | standby |   running | node1    | not running | n/a   | n/a     | n/a
- 3  | node3 | standby |   running | node1    | running     | 96584 | yes     | 0 second(s) ago</programlisting>
-    </para>
-  </refsect1>
-
-  <refsect1>
-    <title>Options</title>
-
-    <variablelist>
-
-      <varlistentry>
-        <term><option>--csv</option></term>
-        <listitem>
-          <para>
-            <command>repmgr daemon status</command> accepts an optional parameter <literal>--csv</literal>, which
-            outputs the replication cluster's status in a simple CSV format, suitable for
-            parsing by scripts, e.g.:
-            <programlisting>
-    $ repmgr -f /etc/repmgr.conf daemon status --csv
-    1,node1,primary,1,1,5722,1,100,-1,default
-    2,node2,standby,1,0,-1,1,100,1,default
-    3,node3,standby,1,1,5779,1,100,1,default</programlisting>
-          </para>
-          <para>
-            The columns have following meanings:
-            <itemizedlist spacing="compact" mark="bullet">
-              <listitem>
-                <simpara>
-                  node ID
-                </simpara>
-              </listitem>
-
-              <listitem>
-                <simpara>
-                  node name
-                </simpara>
-              </listitem>
-
-              <listitem>
-                <simpara>
-                  node type (primary or standby)
-                </simpara>
-              </listitem>
-
-              <listitem>
-                <simpara>
-                  PostgreSQL server running (1 = running, 0 = not running)
-                </simpara>
-              </listitem>
-
-              <listitem>
-                <simpara>
-                  &repmgrd; running (1 = running, 0 = not running, -1 = unknown)
-                </simpara>
-              </listitem>
-
-              <listitem>
-                <simpara>
-                  &repmgrd; PID (-1 if not running or status unknown)
-                </simpara>
-              </listitem>
-
-              <listitem>
-                <simpara>
-                  &repmgrd; paused (1 = paused, 0 = not paused, -1 = unknown)
-                </simpara>
-              </listitem>
-
-              <listitem>
-                <simpara>
-                  &repmgrd; node priority
-                </simpara>
-              </listitem>
-
-              <listitem>
-                <simpara>
-                  interval in seconds since the node's upstream was last seen (this will be -1 if the value could not be retrieved, or the node is primary)
-                </simpara>
-              </listitem>
-
-			  <listitem>
-                <simpara>
-                  node location
-                </simpara>
-              </listitem>
-
-            </itemizedlist>
-          </para>
-        </listitem>
-	  </varlistentry>
-
-	  <varlistentry>
-        <term><option>--detail</option></term>
-        <listitem>
-          <para>
-            Display additional information (<literal>location</literal>, <literal>priority</literal>)
-			about the &repmgr; configuration.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>--verbose</option></term>
-        <listitem>
-          <para>
-            Display the full text of any database connection error messages
-          </para>
-        </listitem>
-      </varlistentry>
-
-    </variablelist>
-
-  </refsect1>
-
-  <refsect1>
-    <title>See also</title>
-    <para>
-      <xref linkend="repmgr-daemon-pause"/>, <xref linkend="repmgr-daemon-unpause"/>, <xref linkend="repmgr-cluster-show"/>
-    </para>
-  </refsect1>
-</refentry>

doc/repmgr-daemon-stop.xml

@@ -1,201 +0,0 @@
-<refentry id="repmgr-daemon-stop">
-  <indexterm>
-    <primary>repmgr daemon stop</primary>
-  </indexterm>
-
-  <indexterm>
-    <primary>repmgrd</primary>
-    <secondary>stopping</secondary>
-  </indexterm>
-
-  <refmeta>
-    <refentrytitle>repmgr daemon stop</refentrytitle>
-  </refmeta>
-
-  <refnamediv>
-    <refname>repmgr daemon stop</refname>
-    <refpurpose>Stop the &repmgrd; daemon</refpurpose>
-  </refnamediv>
-
-  <refsect1>
-    <title>Description</title>
-    <para>
-      This command stops the &repmgrd; daemon on the
-      local node.
-    </para>
-
-    <para>
-      By default, &repmgr; will wait for up to 15 seconds to confirm that &repmgrd;
-      stopped. This behaviour can be overridden by specifying a diffent value using the <option>--wait</option>
-      option, or disabled altogether with the <option>--no-wait</option> option.
-    </para>
-    <note>
-      <para>
-        If PostgreSQL is not running on the local node, under some circumstances &repmgr; may not
-        be able to confirm if &repmgrd; has actually stopped.
-      </para>
-    </note>
-
-   <important>
-      <para>
-        The <filename>repmgr.conf</filename> parameter <varname>repmgrd_service_stop_command</varname>
-        must be set for <command>repmgr daemon stop</command> to work; see section
-        <xref linkend="repmgr-daemon-stop-configuration"/> for details.
-      </para>
-    </important>
-  </refsect1>
-
-  <refsect1>
-    <title>Configuration</title>
-    <para>
-      <command>repmgr daemon stop</command> will execute the command defined by the
-      <varname>repmgrd_service_stop_command</varname> parameter in <filename>repmgr.conf</filename>.
-      This must be set to a shell command which will stop &repmgrd;;
-      if &repmgr; was installed from a package, this will be the service command defined by the
-      package. For more details see <link linkend="appendix-packages">Appendix: &repmgr; package details</link>.
-    </para>
-
-    <important>
-      <para>
-        If &repmgr; was installed from a system package, and you do not configure
-        <varname>repmgrd_service_stop_command</varname> to an appropriate service command, this may
-        result in the system becoming confused about the state of the &repmgrd;
-        service; this is particularly the case with <literal>systemd</literal>.
-      </para>
-    </important>
-
-  </refsect1>
-
-  <refsect1>
-
-    <title>Options</title>
-
-    <variablelist>
-
-      <varlistentry>
-        <term><option>--dry-run</option></term>
-        <listitem>
-          <para>
-            Check prerequisites but don't actually attempt to stop &repmgrd;.
-          </para>
-          <para>
-            This action will output the command which would be executed.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>-w</option></term>
-        <term><option>--wait</option></term>
-        <listitem>
-          <para>
-            Wait for the specified number of seconds to confirm that &repmgrd;
-            stopped successfully.
-          </para>
-          <para>
-            Note that providing <option>--wait=0</option> is the equivalent of <option>--no-wait</option>.
-          </para>
-
-         </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>--no-wait</option></term>
-        <listitem>
-          <para>
-            Don't wait to confirm that &repmgrd;
-            stopped successfully.
-          </para>
-          <para>
-            This is equivalent to providing <option>--wait=0</option>.
-          </para>
-         </listitem>
-      </varlistentry>
-    </variablelist>
-  </refsect1>
-
-  <refsect1 id="repmgr-daemon-stop-configuration" xreflabel="repmgr daemon stop configuration">
-    <title>Configuration file settings</title>
-    <para>
-     The following parameter in <filename>repmgr.conf</filename> is relevant
-     to <command>repmgr daemon stop</command>:
-    </para>
-
-    <variablelist>
-
-      <varlistentry>
-
-        <term><option>repmgrd_service_stop_command</option></term>
-        <listitem>
-          <indexterm>
-            <primary>repmgrd_service_stop_command</primary>
-          <secondary>with &quot;repmgr daemon stop&quot;</secondary>
-          </indexterm>
-
-          <para>
-            <command>repmgr daemon stop</command> will execute the command defined by the
-            <varname>repmgrd_service_stop_command</varname> parameter in <filename>repmgr.conf</filename>.
-            This must be set to a shell command which will stop &repmgrd;;
-            if &repmgr; was installed from a package, this will be the service command defined by the
-            package. For more details see <link linkend="appendix-packages">Appendix: &repmgr; package details</link>.
-          </para>
-          <important>
-            <para>
-              If &repmgr; was installed from a system package, and you do not configure
-              <varname>repmgrd_service_stop_command</varname> to an appropriate service command, this may
-              result in the system becoming confused about the state of the &repmgrd;
-              service; this is particularly the case with <literal>systemd</literal>.
-            </para>
-          </important>
-        </listitem>
-      </varlistentry>
-    </variablelist>
-
-  </refsect1>
-
-  <refsect1>
-    <title>Exit codes</title>
-    <para>
-      One of the following exit codes will be emitted by <command>repmgr daemon stop</command>:
-    </para>
-    <variablelist>
-
-      <varlistentry>
-        <term><option>SUCCESS (0)</option></term>
-        <listitem>
-          <para>
-            &repmgrd; could be stopped.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>ERR_BAD_CONFIG (1)</option></term>
-        <listitem>
-          <para>
-            <varname>repmgrd_service_stop_command</varname> is not defined in
-            <filename>repmgr.conf</filename>.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>ERR_REPMGRD_SERVICE (27)</option></term>
-        <listitem>
-          <para>
-            &repmgrd; could not be stopped.
-          </para>
-        </listitem>
-      </varlistentry>
-
-    </variablelist>
-  </refsect1>
-
-  <refsect1>
-    <title>See also</title>
-    <para>
-      <xref linkend="repmgr-daemon-start"/>, <xref linkend="repmgr-daemon-status"/>, <xref linkend="repmgrd-daemon"/>
-    </para>
-  </refsect1>
-
-</refentry>

doc/repmgr-daemon-unpause.sgml

@@ -3,34 +3,28 @@
     <primary>repmgr daemon unpause</primary>
   </indexterm>
 
-  <indexterm>
-    <primary>repmgrd</primary>
-    <secondary>unpausing</secondary>
-  </indexterm>
-
-
   <refmeta>
     <refentrytitle>repmgr daemon unpause</refentrytitle>
   </refmeta>
 
   <refnamediv>
     <refname>repmgr daemon unpause</refname>
-    <refpurpose>Instruct all &repmgrd; instances in the replication cluster to resume failover operations</refpurpose>
+    <refpurpose>Instruct all <application>repmgrd</application> instances in the replication cluster to resume failover operations</refpurpose>
   </refnamediv>
 
   <refsect1>
     <title>Description</title>
     <para>
       This command can be run on any active node in the replication cluster to instruct all
-      running &repmgrd; instances to &quot;unpause&quot;
-      (following a previous execution of <xref linkend="repmgr-daemon-pause"/>)
+      running <application>repmgrd</application> instances to &quot;unpause&quot;
+      (following a previous execution of <xref linkend="repmgr-daemon-pause">)
       and resume normal failover/monitoring operation.
     </para>
 
     <note>
       <para>
         It's important to wait a few seconds after restarting PostgreSQL on any node before running
-        <command>repmgr daemon pause</command>, as the &repmgrd; instance
+        <command>repmgr daemon pause</command>, as the <application>repmgrd</application> instance
         on the restarted node will take a second or two before it has updated its status.
       </para>
     </note>
@@ -64,7 +58,7 @@ NOTICE: node 3 (node3) unpaused</programlisting>
         <term><option>--dry-run</option></term>
         <listitem>
           <para>
-            Check if nodes are reachable but don't unpause &repmgrd;.
+            Check if nodes are reachable but don't unpause <application>repmgrd</application>.
           </para>
         </listitem>
       </varlistentry>
@@ -74,7 +68,7 @@ NOTICE: node 3 (node3) unpaused</programlisting>
   <refsect1>
     <title>Exit codes</title>
     <para>
-      One of the following exit codes will be emitted by <command>repmgr daemon unpause</command>:
+      Following exit codes can be emitted by <command>repmgr daemon unpause</command>:
     </para>
     <variablelist>
 
@@ -82,7 +76,7 @@ NOTICE: node 3 (node3) unpaused</programlisting>
         <term><option>SUCCESS (0)</option></term>
         <listitem>
           <para>
-            &repmgrd; could be unpaused on all nodes.
+            <application>repmgrd</application> could be unpaused on all nodes.
           </para>
         </listitem>
       </varlistentry>
@@ -91,7 +85,7 @@ NOTICE: node 3 (node3) unpaused</programlisting>
         <term><option>ERR_REPMGRD_PAUSE (26)</option></term>
         <listitem>
           <para>
-           &repmgrd; could not be unpaused on one or mode nodes.
+           <application>repmgrd</application> could not be unpaused on one or mode nodes.
           </para>
         </listitem>
       </varlistentry>
@@ -102,7 +96,7 @@ NOTICE: node 3 (node3) unpaused</programlisting>
   <refsect1>
     <title>See also</title>
     <para>
-      <xref linkend="repmgr-daemon-pause"/>, <xref linkend="repmgr-daemon-status"/>
+      <xref linkend="repmgr-daemon-pause">, <xref linkend="repmgr-daemon-status">
     </para>
   </refsect1>
 </refentry>

doc/repmgr-node-check.sgml

@@ -18,14 +18,6 @@
       Performs some health checks on a node from a replication perspective.
       This command must be run on the local node.
     </para>
-	<note>
-	  <para>
-		Currently &repmgr; performs health checks on physical replication
-		slots only, with the aim of warning about streaming replication standbys which
-		have become detached and the associated risk of uncontrolled WAL file
-		growth.
-	  </para>
-	</note>
   </refsect1>
 
   <refsect1>
@@ -38,8 +30,8 @@
             Replication lag: OK (N/A - node is primary)
             WAL archiving: OK (0 pending files)
             Downstream servers: OK (2 of 2 downstream nodes attached)
-            Replication slots: OK (node has no physical replication slots)
-            Missing replication slots: OK (node has no missing physical replication slots)</programlisting>
+            Replication slots: OK (node has no replication slots)
+            Missing replication slots: OK (node has no missing replication slots)</programlisting>
     </para>
   </refsect1>
   <refsect1>
@@ -52,7 +44,7 @@
         OK (node is primary)</programlisting>
     </para>
     <para>
-	  Parameters for individual checks are as follows:
+   Parameters for individual checks are as follows:
     <itemizedlist spacing="compact" mark="bullet">
 
      <listitem>
@@ -84,26 +76,16 @@
 
      <listitem>
       <simpara>
-        <literal>--slots</literal>: checks there are no inactive physical replication slots
+        <literal>--slots</literal>: checks there are no inactive replication slots
       </simpara>
      </listitem>
 
      <listitem>
       <simpara>
-        <literal>--missing-slots</literal>: checks there are no missing physical replication slots
+        <literal>--missing-slots</literal>: checks there are no missing replication slots
       </simpara>
      </listitem>
 
-     <listitem>
-      <simpara>
-        <literal>--data-directory-config</literal>: checks the data directory configured in
-        <filename>repmgr.conf</filename> matches the actual data directory.
-        This check is not directly related to replication, but is useful to verify &repmgr;
-        is correctly configured.
-      </simpara>
-     </listitem>
-
-
     </itemizedlist>
   </para>
   </refsect1>
@@ -123,7 +105,6 @@
         <listitem>
           <simpara>
             <literal>--nagios</literal>: generate output in a Nagios-compatible format
-            (for individual checks only)
           </simpara>
         </listitem>
       </itemizedlist>
@@ -170,10 +151,9 @@
 
 
     <para>
-      One of the following exit codes will be emitted by <command>repmgr status check</command>
+      Following exit codes can be emitted by <command>repmgr status check</command>
       if no individual check was specified.
     </para>
-
     <variablelist>
 
       <varlistentry>
@@ -195,7 +175,6 @@
       </varlistentry>
 
    </variablelist>
-
   </refsect1>
 
 
@@ -203,7 +182,7 @@
   <refsect1>
     <title>See also</title>
     <para>
-     <xref linkend="repmgr-node-status"/>, <xref linkend="repmgr-cluster-show"/>
+     <xref linkend="repmgr-node-status">, <xref linkend="repmgr-cluster-show">
     </para>
   </refsect1>
 

doc/repmgr-node-rejoin.sgml

@@ -0,0 +1,264 @@
+<refentry id="repmgr-node-rejoin">
+
+  <indexterm>
+    <primary>repmgr node rejoin</primary>
+  </indexterm>
+
+  <refmeta>
+    <refentrytitle>repmgr node rejoin</refentrytitle>
+  </refmeta>
+
+  <refnamediv>
+    <refname>repmgr node rejoin</refname>
+    <refpurpose>rejoin a dormant (stopped) node to the replication cluster</refpurpose>
+  </refnamediv>
+
+  <refsect1>
+    <title>Description</title>
+    <para>
+      Enables a dormant (stopped) node to be rejoined to the replication cluster.
+    </para>
+    <para>
+      This can optionally use <application>pg_rewind</application> to re-integrate
+      a node which has diverged from the rest of the cluster, typically a failed primary.
+    </para>
+
+    <tip>
+      <para>
+        If the node is running and needs to be attached to the current primary, use
+        <xref linkend="repmgr-standby-follow">.
+      </para>
+      <para>
+        Note <xref linkend="repmgr-standby-follow"> can only be used for standbys which have not diverged
+        from the rest of the cluster.
+      </para>
+    </tip>
+  </refsect1>
+
+
+  <refsect1>
+    <title>Usage</title>
+
+    <para>
+      <programlisting>
+      repmgr node rejoin -d '$conninfo'</programlisting>
+
+      where <literal>$conninfo</literal> is the conninfo string of any reachable node in the cluster.
+      <filename>repmgr.conf</filename> for the stopped node *must* be supplied explicitly if not
+      otherwise available.
+    </para>
+  </refsect1>
+
+  <refsect1>
+
+    <title>Options</title>
+    <variablelist>
+
+      <varlistentry>
+        <term><option>--dry-run</option></term>
+        <listitem>
+          <para>
+            Check prerequisites but don't actually execute the rejoin.
+          </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>--force-rewind[=/path/to/pg_rewind]</option></term>
+        <listitem>
+          <para>
+            Execute <application>pg_rewind</application>.
+          </para>
+          <para>
+            It is only necessary to provide the <application>pg_rewind</application> path
+            if using PostgreSQL 9.3 or 9.4, and <application>pg_rewind</application>
+            is not installed in the PostgreSQL <filename>bin</filename> directory.
+          </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>--config-files</option></term>
+        <listitem>
+          <para>
+            comma-separated list of configuration files to retain after
+            executing <application>pg_rewind</application>.
+          </para>
+          <para>
+            Currently <application>pg_rewind</application> will overwrite
+            the local node's configuration files with the files from the source node,
+            so it's advisable to use this option to ensure they are kept.
+          </para>
+        </listitem>
+      </varlistentry>
+
+
+      <varlistentry>
+        <term><option>--config-archive-dir</option></term>
+        <listitem>
+          <para>
+            Directory to temporarily store configuration files specified with
+            <option>--config-files</option>; default: <filename>/tmp</filename>.
+          </para>
+        </listitem>
+      </varlistentry>
+
+
+      <varlistentry>
+        <term><option>-W/--no-wait</option></term>
+        <listitem>
+          <para>
+            Don't wait for the node to rejoin cluster.
+          </para>
+          <para>
+            If this option is supplied, &repmgr; will restart the node but
+            not wait for it to connect to the primary.
+          </para>
+        </listitem>
+      </varlistentry>
+
+    </variablelist>
+  </refsect1>
+  <refsect1>
+    <title>Configuration file settings</title>
+
+    <para>
+      <itemizedlist spacing="compact" mark="bullet">
+       <listitem>
+         <simpara>
+           <literal>node_rejoin_timeout</literal>:
+		   the maximum length of time (in seconds) to wait for
+		   the node to reconnect to the replication cluster (defaults to
+		   the value set in <literal>standby_reconnect_timeout</literal>,
+		   60 seconds).
+		 </simpara>
+	   </listitem>
+	  </itemizedlist>
+	</para>
+
+  </refsect1>
+
+  <refsect1 id="repmgr-node-rejoin-events">
+    <title>Event notifications</title>
+    <para>
+      A <literal>node_rejoin</literal> <link linkend="event-notifications">event notification</link> will be generated.
+    </para>
+  </refsect1>
+
+  <refsect1>
+    <title>Notes</title>
+    <para>
+      Currently <command>repmgr node rejoin</command> can only be used to attach
+      a standby to the current primary, not another standby.
+    </para>
+    <para>
+      The node must have been shut down cleanly; if this was not the case, it will
+      need to be manually started (remove any existing <filename>recovery.conf</filename> file first)
+      until it has reached a consistent recovery point, then shut down cleanly.
+    </para>
+    <tip>
+      <para>
+        If <application>PostgreSQL</application> is started in single-user mode and
+        input is directed from <filename>/dev/null/</filename>, it will perform recovery
+        then immediately quit, and will then be in a state suitable for use by
+        <application>pg_rewind</application>.
+        <programlisting>
+          rm -f /var/lib/pgsql/data/recovery.conf
+          postgres --single -D /var/lib/pgsql/data/ &lt; /dev/null</programlisting>
+      </para>
+    </tip>
+  </refsect1>
+
+  <refsect1 id="repmgr-node-rejoin-pg-rewind" xreflabel="Using pg_rewind">
+
+   <indexterm>
+      <primary>pg_rewind</primary>
+      <secondary>using with "repmgr node rejoin"</secondary>
+    </indexterm>
+
+    <title>Using <command>pg_rewind</command></title>
+    <para>
+      <command>repmgr node rejoin</command> can optionally use <command>pg_rewind</command> to re-integrate a
+      node which has diverged from the rest of the cluster, typically a failed primary.
+      <command>pg_rewind</command> is available in PostgreSQL 9.5 and later as part of the core distribution,
+      and can be installed from external sources for PostgreSQL 9.3 and 9.4.
+    </para>
+    <note>
+      <para>
+        <command>pg_rewind</command> <emphasis>requires</emphasis> that either
+        <varname>wal_log_hints</varname> is enabled, or that
+        data checksums were enabled when the cluster was initialized. See the
+        <ulink url="https://www.postgresql.org/docs/current/static/app-pgrewind.html"><command>pg_rewind</command> documentation</ulink> for details.
+      </para>
+    </note>
+
+    <para>
+      To have <command>repmgr node rejoin</command> use <command>pg_rewind</command>,
+      pass the command line option <literal>--force-rewind</literal>, which will tell &repmgr;
+      to execute <command>pg_rewind</command> to ensure the node can be rejoined successfully.
+    </para>
+
+    <para>
+      Be aware that if <command>pg_rewind</command> is executed and actually performs a
+      rewind operation, any configuration files in the PostgreSQL data directory will be
+      overwritten with those from the source server.
+    </para>
+    <para>
+      To prevent this happening, provide a comma-separated list of files to retain
+      using the <literal>--config-file</literal> command line option; the specified files
+      will be archived in a temporary directory (whose parent directory can be specified with
+      <literal>--config-archive-dir</literal>) and restored once the rewind operation is
+      complete.
+    </para>
+
+    <para>
+      Example, first using <literal>--dry-run</literal>, then actually executing the
+      <literal>node rejoin command</literal>.
+    <programlisting>
+    $ repmgr node rejoin -f /etc/repmgr.conf -d 'host=node1 dbname=repmgr user=repmgr' \
+         --force-rewind --config-files=postgresql.local.conf,postgresql.conf --verbose --dry-run
+    NOTICE: using provided configuration file "/etc/repmgr.conf"
+    INFO: prerequisites for using pg_rewind are met
+    INFO: file "postgresql.local.conf" would be copied to "/tmp/repmgr-config-archive-node1/postgresql.local.conf"
+    INFO: file "postgresql.conf" would be copied to "/tmp/repmgr-config-archive-node1/postgresql.local.conf"
+    INFO: 2 files would have been copied to "/tmp/repmgr-config-archive-node1"
+    INFO: directory "/tmp/repmgr-config-archive-node1" deleted
+    INFO: pg_rewind would now be executed
+    DETAIL: pg_rewind command is:
+      pg_rewind -D '/var/lib/postgresql/data' --source-server='host=node1 dbname=repmgr user=repmgr'</programlisting>
+
+    <note>
+      <para>
+        If <option>--force-rewind</option> is used with the <option>--dry-run</option> option,
+        this checks the prerequisites for using <application>pg_rewind</application>, but cannot
+        predict the outcome of actually executing <application>pg_rewind</application>.
+      </para>
+    </note>
+
+    <programlisting>
+    $ repmgr node rejoin -f /etc/repmgr.conf -d 'host=node1 dbname=repmgr user=repmgr' \
+         --force-rewind --config-files=postgresql.local.conf,postgresql.conf --verbose
+    NOTICE: using provided configuration file "/etc/repmgr.conf"
+    INFO: prerequisites for using pg_rewind are met
+    INFO: 2 files copied to "/tmp/repmgr-config-archive-node1"
+    NOTICE: executing pg_rewind
+    NOTICE: 2 files copied to /var/lib/pgsql/data
+    INFO: directory "/tmp/repmgr-config-archive-node1" deleted
+    INFO: deleting "recovery.done"
+    INFO: setting node 1's primary to node 2
+    NOTICE: starting server using "pg_ctl-l /var/log/postgres/startup.log -w -D '/var/lib/pgsql/data' start"
+    waiting for server to start.... done
+    server started
+    NOTICE: NODE REJOIN successful
+    DETAIL: node 1 is now attached to node 2</programlisting>
+    </para>
+
+  </refsect1>
+
+  <refsect1>
+    <title>See also</title>
+    <para>
+     <xref linkend="repmgr-standby-follow">
+    </para>
+  </refsect1>
+</refentry>

doc/repmgr-node-rejoin.xml

@@ -1,389 +0,0 @@
-<refentry id="repmgr-node-rejoin">
-
-  <indexterm>
-    <primary>repmgr node rejoin</primary>
-  </indexterm>
-
-  <refmeta>
-    <refentrytitle>repmgr node rejoin</refentrytitle>
-  </refmeta>
-
-  <refnamediv>
-    <refname>repmgr node rejoin</refname>
-    <refpurpose>rejoin a dormant (stopped) node to the replication cluster</refpurpose>
-  </refnamediv>
-
-  <refsect1>
-    <title>Description</title>
-    <para>
-      Enables a dormant (stopped) node to be rejoined to the replication cluster.
-    </para>
-    <para>
-      This can optionally use <application>pg_rewind</application> to re-integrate
-      a node which has diverged from the rest of the cluster, typically a failed primary.
-    </para>
-
-    <tip>
-      <para>
-        If the node is running and needs to be attached to the current primary, use
-        <xref linkend="repmgr-standby-follow"/>.
-      </para>
-      <para>
-        Note <xref linkend="repmgr-standby-follow"/> can only be used for standbys which have not diverged
-        from the rest of the cluster.
-      </para>
-    </tip>
-  </refsect1>
-
-
-  <refsect1>
-    <title>Usage</title>
-
-    <para>
-      <programlisting>
-      repmgr node rejoin -d '$conninfo'</programlisting>
-
-      where <literal>$conninfo</literal> is the conninfo string of any reachable node in the cluster.
-      <filename>repmgr.conf</filename> for the stopped node *must* be supplied explicitly if not
-      otherwise available.
-    </para>
-  </refsect1>
-
-  <refsect1>
-
-    <title>Options</title>
-    <variablelist>
-
-      <varlistentry>
-        <term><option>--dry-run</option></term>
-        <listitem>
-          <para>
-            Check prerequisites but don't actually execute the rejoin.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>--force-rewind[=/path/to/pg_rewind]</option></term>
-        <listitem>
-          <para>
-            Execute <application>pg_rewind</application>.
-          </para>
-          <para>
-            It is only necessary to provide the <application>pg_rewind</application> path
-            if using PostgreSQL 9.3 or 9.4, and <application>pg_rewind</application>
-            is not installed in the PostgreSQL <filename>bin</filename> directory.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>--config-files</option></term>
-        <listitem>
-          <para>
-            comma-separated list of configuration files to retain after
-            executing <application>pg_rewind</application>.
-          </para>
-          <para>
-            Currently <application>pg_rewind</application> will overwrite
-            the local node's configuration files with the files from the source node,
-            so it's advisable to use this option to ensure they are kept.
-          </para>
-        </listitem>
-      </varlistentry>
-
-
-      <varlistentry>
-        <term><option>--config-archive-dir</option></term>
-        <listitem>
-          <para>
-            Directory to temporarily store configuration files specified with
-            <option>--config-files</option>; default: <filename>/tmp</filename>.
-          </para>
-        </listitem>
-      </varlistentry>
-
-
-      <varlistentry>
-        <term><option>-W/--no-wait</option></term>
-        <listitem>
-          <para>
-            Don't wait for the node to rejoin cluster.
-          </para>
-          <para>
-            If this option is supplied, &repmgr; will restart the node but
-            not wait for it to connect to the primary.
-          </para>
-        </listitem>
-      </varlistentry>
-
-    </variablelist>
-  </refsect1>
-
-  <refsect1>
-    <title>Configuration file settings</title>
-
-    <para>
-      <itemizedlist spacing="compact" mark="bullet">
-       <listitem>
-         <simpara>
-           <literal>node_rejoin_timeout</literal>:
-		   the maximum length of time (in seconds) to wait for
-		   the node to reconnect to the replication cluster (defaults to
-		   the value set in <literal>standby_reconnect_timeout</literal>,
-		   60 seconds).
-		 </simpara>
-         <simpara>
-           Note that <literal>standby_reconnect_timeout</literal> must be
-           set to a value equal to or greater than
-           <literal>node_rejoin_timeout</literal>.
-         </simpara>
-	   </listitem>
-	  </itemizedlist>
-	</para>
-
-  </refsect1>
-
-  <refsect1 id="repmgr-node-rejoin-events">
-    <title>Event notifications</title>
-    <para>
-      A <literal>node_rejoin</literal> <link linkend="event-notifications">event notification</link> will be generated.
-    </para>
-  </refsect1>
-  <refsect1>
-    <title>Exit codes</title>
-    <para>
-      One of the following exit codes will be emitted by <command>repmgr node rejoin</command>:
-    </para>
-
-    <variablelist>
-
-      <varlistentry>
-        <term><option>SUCCESS (0)</option></term>
-        <listitem>
-          <para>
-            The node rejoin succeeded; or if <option>--dry-run</option> was provided,
-            no issues were detected which would prevent the node rejoin.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>ERR_BAD_CONFIG (1)</option></term>
-        <listitem>
-          <para>
-            A configuration issue was detected which prevented &repmgr; from
-            continuing with the node rejoin.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>ERR_NO_RESTART (4)</option></term>
-        <listitem>
-          <para>
-            The node could not be restarted.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>ERR_REJOIN_FAIL (24)</option></term>
-        <listitem>
-          <para>
-            The node rejoin operation failed.
-          </para>
-        </listitem>
-      </varlistentry>
-
-    </variablelist>
-
-  </refsect1>
-
-  <refsect1>
-    <title>Notes</title>
-    <para>
-      Currently <command>repmgr node rejoin</command> can only be used to attach
-      a standby to the current primary, not another standby.
-    </para>
-    <para>
-      The node must have been shut down cleanly; if this was not the case, it will
-      need to be manually started (remove any existing <filename>recovery.conf</filename> file first)
-      until it has reached a consistent recovery point, then shut down cleanly.
-    </para>
-    <tip>
-      <para>
-        If <application>PostgreSQL</application> is started in single-user mode and
-        input is directed from <filename>/dev/null/</filename>, it will perform recovery
-        then immediately quit, and will then be in a state suitable for use by
-        <application>pg_rewind</application>.
-        <programlisting>
-          rm -f /var/lib/pgsql/data/recovery.conf
-          postgres --single -D /var/lib/pgsql/data/ &lt; /dev/null</programlisting>
-      </para>
-    </tip>
-    <para>
-      &repmgr; will attempt to verify whether the node can rejoin as-is, or whether
-      <command>pg_rewind</command> must be used (see following section).
-    </para>
-  </refsect1>
-
-  <refsect1 id="repmgr-node-rejoin-pg-rewind" xreflabel="Using pg_rewind">
-
-   <title>Using <command>pg_rewind</command></title>
-
-   <indexterm>
-      <primary>pg_rewind</primary>
-      <secondary>using with "repmgr node rejoin"</secondary>
-    </indexterm>
-
-    <para>
-      <command>repmgr node rejoin</command> can optionally use <command>pg_rewind</command> to re-integrate a
-      node which has diverged from the rest of the cluster, typically a failed primary.
-      <command>pg_rewind</command> is available in PostgreSQL 9.5 and later as part of the core distribution,
-      and can be installed from external sources for PostgreSQL 9.3 and 9.4.
-    </para>
-    <note>
-      <para>
-        <command>pg_rewind</command> <emphasis>requires</emphasis> that either
-        <varname>wal_log_hints</varname> is enabled, or that
-        data checksums were enabled when the cluster was initialized. See the
-        <ulink url="https://www.postgresql.org/docs/current/app-pgrewind.html"><command>pg_rewind</command> documentation</ulink> for details.
-      </para>
-    </note>
-
-    <para>
-      We strongly recommend familiarizing yourself with <command>pg_rewind</command> before attempting
-      to use it with &repmgr;, as while it is an extremely useful tool, it is <emphasis>not</emphasis>
-      a &quot;magic bullet&quot; which can resolve all problematic replication situations.
-    </para>
-
-    <para>
-      A typical use-case for <command>pg_rewind</command> is when a scenario like the following
-      is encountered:
-      <programlisting>
-    $ repmgr node rejoin -f /etc/repmgr.conf -d 'host=node3 dbname=repmgr user=repmgr' \
-        --force-rewind --config-files=postgresql.local.conf,postgresql.conf --verbose --dry-run
-    INFO: replication connection to the rejoin target node was successful
-    INFO: local and rejoin target system identifiers match
-    DETAIL: system identifier is 6652184002263212600
-    ERROR: this node cannot attach to rejoin target node 3
-    DETAIL: rejoin target server's timeline 2 forked off current database system timeline 1 before current recovery point 0/610D710
-    HINT: use --force-rewind to execute pg_rewind</programlisting>
-
-      Here, <literal>node3</literal> was promoted to a primary while the local node was
-      still attached to the previous primary; this can potentially happen during e.g. a
-      network split. <command>pg_rewind</command> can re-sync the local node with <literal>node3</literal>,
-      removing the need for a full reclone.
-    </para>
-
-    <para>
-      To have <command>repmgr node rejoin</command> use <command>pg_rewind</command>,
-      pass the command line option <literal>--force-rewind</literal>, which will tell &repmgr;
-      to execute <command>pg_rewind</command> to ensure the node can be rejoined successfully.
-    </para>
-
-    <important>
-      <para>
-        Be aware that if <command>pg_rewind</command> is executed and actually performs a
-        rewind operation, any configuration files in the PostgreSQL data directory will be
-        overwritten with those from the source server.
-      </para>
-      <para>
-        To prevent this happening, provide a comma-separated list of files to retain
-        using the <literal>--config-file</literal> command line option; the specified files
-        will be archived in a temporary directory (whose parent directory can be specified with
-        <literal>--config-archive-dir</literal>) and restored once the rewind operation is
-        complete.
-      </para>
-    </important>
-
-    <para>
-      Example, first using <literal>--dry-run</literal>, then actually executing the
-      <literal>node rejoin command</literal>.
-    <programlisting>
-    $ repmgr node rejoin -f /etc/repmgr.conf -d 'host=node3 dbname=repmgr user=repmgr' \
-        --config-files=postgresql.local.conf,postgresql.conf --verbose --force-rewind --dry-run
-    INFO: replication connection to the rejoin target node was successful
-    INFO: local and rejoin target system identifiers match
-    DETAIL: system identifier is 6652460429293670710
-    NOTICE: pg_rewind execution required for this node to attach to rejoin target node 3
-    DETAIL: rejoin target server's timeline 2 forked off current database system timeline 1 before current recovery point 0/610D710
-    INFO: prerequisites for using pg_rewind are met
-    INFO: file "postgresql.local.conf" would be copied to "/tmp/repmgr-config-archive-node2/postgresql.local.conf"
-    INFO: file "postgresql.replication-setup.conf" would be copied to "/tmp/repmgr-config-archive-node2/postgresql.replication-setup.conf"
-    INFO: pg_rewind would now be executed
-    DETAIL: pg_rewind command is:
-      pg_rewind -D '/var/lib/postgresql/data' --source-server='host=node3 dbname=repmgr user=repmgr'
-    INFO: prerequisites for executing NODE REJOIN are met</programlisting>
-
-    <note>
-      <para>
-        If <option>--force-rewind</option> is used with the <option>--dry-run</option> option,
-        this checks the prerequisites for using <application>pg_rewind</application>, but is
-        not an absolute guarantee that actually executing <application>pg_rewind</application>
-        will succeed. See also section <xref linkend="repmgr-node-rejoin-caveats"/> below.
-      </para>
-
-    </note>
-
-    <programlisting>
-    $ repmgr node rejoin -f /etc/repmgr.conf -d 'host=node3 dbname=repmgr user=repmgr' \
-        --config-files=postgresql.local.conf,postgresql.conf --verbose --force-rewind
-    NOTICE: pg_rewind execution required for this node to attach to rejoin target node 3
-    DETAIL: rejoin target server's timeline 2 forked off current database system timeline 1 before current recovery point 0/610D710
-    NOTICE: executing pg_rewind
-    DETAIL: pg_rewind command is "pg_rewind -D '/var/lib/postgresql/data' --source-server='host=node3 dbname=repmgr user=repmgr'"
-    NOTICE: 2 files copied to /var/lib/postgresql/data
-    NOTICE: setting node 2's upstream to node 3
-    NOTICE: starting server using "pg_ctl -l /var/log/postgres/startup.log -w -D '/var/lib/pgsql/data' start"
-    NOTICE: NODE REJOIN successful
-    DETAIL: node 2 is now attached to node 3</programlisting>
-    </para>
-
-  </refsect1>
-
-  <refsect1 id="repmgr-node-rejoin-caveats" xreflabel="Caveats">
-
-   <title>Caveats when using <command>repmgr node rejoin</command></title>
-
-   <indexterm>
-     <primary>repmgr node rejoin</primary>
-     <secondary>caveats</secondary>
-   </indexterm>
-
-   <para>
-     <command>repmgr node rejoin</command> attempts to determine whether it will succeed by
-     comparing the timelines and relative WAL positions of the local node (rejoin candidate) and primary
-     (rejoin target). This is particularly important if planning to use <application>pg_rewind</application>,
-     which currently (as of PostgreSQL 11) may appear to succeed (or indicate there is no action
-     needed) but potentially allow an impossible action, such as trying to rejoin a standby to a
-     primary which is behind the standby. &repmgr; will prevent this situation from occurring.
-   </para>
-   <para>
-     Currently it is <emphasis>not</emphasis> possible to detect a situation where the rejoin target
-     is a standby which has been &quot;promoted&quot; by removing <filename>recovery.conf</filename>
-     (PostgreSQL 12 and later: <filename>standby.signal</filename>) and restarting it.
-     In this case there will be no information about the point the rejoin target diverged
-     from the current standby; the rejoin operation will fail and
-     the current standby's PostgreSQL log will contain entries with the text
-     &quot;<literal>record with incorrect prev-link</literal>&quot;.
-   </para>
-   <para>
-     We strongly recommend running <command>repmgr node rejoin</command> with the
-     <option>--dry-run</option> option first. Additionally it might be a good idea
-     to execute the <application>pg_rewind</application> command displayed by
-     &repmgr; with the <application>pg_rewind</application> <option>--dry-run</option>
-     option. Note that <application>pg_rewind</application> does not indicate that it
-     is running in <option>--dry-run</option> mode.
-   </para>
-
-  </refsect1>
-
-  <refsect1>
-    <title>See also</title>
-    <para>
-     <xref linkend="repmgr-standby-follow"/>
-    </para>
-  </refsect1>
-</refentry>

doc/repmgr-node-service.sgml

@@ -84,7 +84,7 @@
   <refsect1>
     <title>Exit codes</title>
     <para>
-      One of the following exit codes will be emitted by <command>repmgr node service</command>:
+      Following exit codes can be emitted by <command>repmgr node service</command>:
     </para>
     <variablelist>
 

doc/repmgr-node-status.sgml

@@ -55,7 +55,7 @@
   <refsect1>
     <title>Exit codes</title>
     <para>
-      One of the following exit codes will be emitted by <command>repmgr node status</command>:
+      Following exit codes can be emitted by <command>repmgr node status</command>:
     </para>
     <variablelist>
 
@@ -84,7 +84,7 @@
   <refsect1>
     <title>See also</title>
     <para>
-      See <xref linkend="repmgr-node-check"/> to diagnose issues and <xref linkend="repmgr-cluster-show"/>
+      See <xref linkend="repmgr-node-check"> to diagnose issues and <xref linkend="repmgr-cluster-show">
       for an overview of all nodes in the cluster.
     </para>
   </refsect1>

doc/repmgr-primary-register.sgml

@@ -21,15 +21,6 @@
       installing the &repmgr; extension. This command needs to be executed before any
       standby nodes are registered.
     </para>
-
-    <note>
-      <para>
-        It's possibly to install the &repmgr; extension manually before executing
-        <command>repmgr primary register</command>; in this case &repmgr; will
-        detect the presence of the extension and skip that step.
-      </para>
-    </note>
-
   </refsect1>
 
   <refsect1>
@@ -38,25 +29,23 @@
       Execute with the <option>--dry-run</option> option to check what would happen without
       actually registering the primary.
     </para>
-
-    <note>
-      <para>
-        If providing the configuration file location with <option>-f/--config-file</option>,
-        avoid using a relative path, as &repmgr; stores the configuration file location
-        in the repmgr metadata for use when &repmgr; is executed remotely (e.g. during
-        <xref linkend="repmgr-standby-switchover"/>). &repmgr; will attempt to convert the
-          a relative path into an absolute one, but this may not be the same as the path you
-          would explicitly provide (e.g. <filename>./repmgr.conf</filename> might be converted
-          to <filename>/path/to/./repmgr.conf</filename>, whereas you'd normally write
-          <filename>/path/to/repmgr.conf</filename>).
-      </para>
-    </note>
-
-	<para>
+    <para>
       <command>repmgr master register</command> can be used as an alias for
       <command>repmgr primary register</command>.
     </para>
 
+    <note>
+    <para>
+      If providing the configuration file location with <option>-f/--config-file</option>,
+      avoid using a relative path, as &repmgr; stores the configuration file location
+      in the repmgr metadata for use when &repmgr; is executed remotely (e.g. during
+      <xref linkend="repmgr-standby-switchover">). &repmgr; will attempt to convert the
+        a relative path into an absolute one, but this may not be the same as the path you
+        would explicitly provide (e.g. <filename>./repmgr.conf</filename> might be converted
+        to <filename>/path/to/./repmgr.conf</filename>, whereas you'd normally write
+        <filename>/path/to/repmgr.conf</filename>).
+    </para>
+    </note>
   </refsect1>
 
   <refsect1>

doc/repmgr-standby-clone.sgml

@@ -85,13 +85,12 @@
   </refsect1>
 
   <refsect1 id="repmgr-standby-clone-recovery-conf">
-    <title>Customising recovery.conf</title>
-    <indexterm>
+   <indexterm>
      <primary>recovery.conf</primary>
-     <secondary>customising with &quot;repmgr standby clone&quot;</secondary>
-    </indexterm>
-
+     <secondary>customising with "repmgr standby clone"</secondary>
+   </indexterm>
 
+   <title>Customising recovery.conf</title>
    <para>
      By default, &repmgr; will create a minimal <filename>recovery.conf</filename>
      containing following parameters:
@@ -143,7 +142,7 @@
        We recommend using <ulink url="https://www.pgbarman.org/">Barman</ulink> to manage
        WAL file archiving. For more details on combining &repmgr; and <application>Barman</application>,
        in particular using <varname>restore_command</varname> to configure Barman as a backup source of
-       WAL files, see <xref linkend="cloning-from-barman"/>.
+       WAL files, see <xref linkend="cloning-from-barman">.
      </para>
    </note>
 
@@ -155,7 +154,7 @@
     When initially cloning a standby, you will need to ensure
     that all required WAL files remain available while the cloning is taking
     place. To ensure this happens when using the default <command>pg_basebackup</command> method,
-    &repmgr; will set <command>pg_basebackup</command>'s <literal>--wal-method</literal>
+    &repmgr; will set <command>pg_basebackup</command>'s <literal>--xlog-method</literal>
     parameter to <literal>stream</literal>,
     which will ensure all WAL files generated during the cloning process are
     streamed in parallel with the main backup. Note that this requires two
@@ -165,20 +164,21 @@
    </para>
    <para>
     To override this behaviour, in <filename>repmgr.conf</filename> set
-    <command>pg_basebackup</command>'s <literal>--wal-method</literal>
+    <command>pg_basebackup</command>'s <literal>--xlog-method</literal>
     parameter to <literal>fetch</literal>:
     <programlisting>
-      pg_basebackup_options='--wal-method=fetch'</programlisting>
+      pg_basebackup_options='--xlog-method=fetch'</programlisting>
 
     and ensure that <literal>wal_keep_segments</literal> is set to an appropriately high value.
-    See the <ulink url="https://www.postgresql.org/docs/current/app-pgbasebackup.html">
+    See the <ulink url="https://www.postgresql.org/docs/current/static/app-pgbasebackup.html">
     pg_basebackup</ulink> documentation for details.
    </para>
 
    <note>
     <simpara>
-      If using PostgreSQL 9.6 or earlier, replace <literal>--wal-method</literal>
-      with <literal>--xlog-method</literal>.
+      From PostgreSQL 10, <command>pg_basebackup</command>'s
+      <literal>--xlog-method</literal> parameter has been renamed to
+      <literal>--wal-method</literal>.
     </simpara>
    </note>
   </refsect1>
@@ -186,20 +186,18 @@
 
   <refsect1 id="repmgr-standby-create-recovery-conf">
 
-   <title>Using a standby cloned by another method</title>
-
    <indexterm>
      <primary>recovery.conf</primary>
      <secondary>generating for a standby cloned by another method</secondary>
    </indexterm>
 
+   <title>Using a standby cloned by another method</title>
    <para>
      &repmgr; supports standbys cloned by another method (e.g. using <application>barman</application>'s
-     <command><ulink url="http://docs.pgbarman.org/release/2.5/#recover">barman recover</ulink></command> command).
+     <command><ulink url="http://docs.pgbarman.org/release/2.4/#recover">barman recover</ulink></command> command).
    </para>
    <para>
-     To integrate the standby as a &repmgr; node, once the standby has been cloned,
-     ensure the <filename>repmgr.conf</filename>
+     To integrate the standby as a &repmgr; node, ensure the <filename>repmgr.conf</filename>
      file is created for the node, and that it has been registered using
      <command><link linkend="repmgr-standby-register">repmgr standby register</link></command>.
      Then execute the command <command>repmgr standby clone --recovery-conf-only</command>.
@@ -297,7 +295,7 @@
         <term><option> --recovery-conf-only</option></term>
         <listitem>
           <para>
-            Create <filename>recovery.conf</filename> file for a previously cloned instance. &repmgr; 4.0.4 and later.
+            Create <filename>recovery.conf</filename> file for a previously cloned instance. &repmgr 4.0.4 and later.
           </para>
         </listitem>
       </varlistentry>
@@ -326,13 +324,9 @@
         <term><option>--upstream-conninfo</option></term>
         <listitem>
           <para>
-            <literal>primary_conninfo</literal> value to write in <filename>recovery.conf</filename>
+            <literal>primary_conninfo</literal> value to write in recovery.conf
             when the intended upstream server does not yet exist.
           </para>
-          <para>
-            Note that &repmgr; may modify the provided value, in particular to set the
-            correct <literal>application_name</literal>.
-          </para>
         </listitem>
       </varlistentry>
 
@@ -366,7 +360,7 @@
   <refsect1>
     <title>See also</title>
     <para>
-      See <xref linkend="cloning-standbys"/> for details about various aspects of cloning.
+      See <xref linkend="cloning-standbys"> for details about various aspects of cloning.
     </para>
   </refsect1>
 </refentry>

doc/repmgr-standby-follow.sgml

@@ -0,0 +1,116 @@
+<refentry id="repmgr-standby-follow">
+  <indexterm>
+    <primary>repmgr standby follow</primary>
+  </indexterm>
+
+  <refmeta>
+    <refentrytitle>repmgr standby follow</refentrytitle>
+  </refmeta>
+
+  <refnamediv>
+    <refname>repmgr standby follow</refname>
+    <refpurpose>attach a standby to a new primary</refpurpose>
+  </refnamediv>
+
+  <refsect1>
+    <title>Description</title>
+
+    <para>
+      Attaches the standby to a new primary. This command requires a valid
+      <filename>repmgr.conf</filename> file for the standby, either specified
+      explicitly with <literal>-f/--config-file</literal> or located in a
+      default location; no additional arguments are required.
+    </para>
+    <para>
+      This command will force a restart of the standby server, which must be
+      running. It can only be used to attach an active standby to the current primary node
+   (and not to another standby).
+    </para>
+	<tip>
+      <para>
+		To re-add an inactive node to the replication cluster, use
+		<xref linkend="repmgr-node-rejoin">.
+      </para>
+	</tip>
+
+	<para>
+	  <command>repmgr standby follow</command> will wait up to
+	  <varname>standby_follow_timeout</varname> seconds (default: <literal>30</literal>)
+	  to verify the standby has actually connected to the new primary.
+	</para>
+
+  </refsect1>
+
+  <refsect1>
+    <title>Example</title>
+    <para>
+      <programlisting>
+      $ repmgr -f /etc/repmgr.conf standby follow
+      INFO: setting node 3's primary to node 2
+      NOTICE: restarting server using "pg_ctl -l /var/log/postgres/startup.log -w -D '/var/lib/postgres/data' restart"
+      waiting for server to shut down........ done
+      server stopped
+      waiting for server to start.... done
+      server started
+      NOTICE: STANDBY FOLLOW successful
+      DETAIL: node 3 is now attached to node 2</programlisting>
+    </para>
+  </refsect1>
+
+  <refsect1>
+    <title>Options</title>
+    <variablelist>
+
+      <varlistentry>
+        <term><option>--dry-run</option></term>
+        <listitem>
+          <para>
+            Check prerequisites but don't actually follow a new standby.
+          </para>
+          <important>
+            <para>
+              This does not guarantee the standby can follow the primary; in
+              particular, whether the primary and standby timelines have diverged,
+              can currently only be determined by actually attempting to
+              attach the standby to the primary.
+            </para>
+          </important>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-w</option></term>
+        <term><option>--wait</option></term>
+        <listitem>
+          <para>
+            Wait for a primary to appear. &repmgr; will wait for up to
+            <varname>primary_follow_timeout</varname> seconds
+            (default: 60 seconds) to verify that the standby is following the new primary.
+            This value can be defined in <filename>repmgr.conf</filename>.
+          </para>
+        </listitem>
+      </varlistentry>
+
+    </variablelist>
+  </refsect1>
+
+  <refsect1 id="repmgr-standby-follow-events">
+    <title>Event notifications</title>
+    <para>
+      A <literal>standby_follow</literal> <link linkend="event-notifications">event notification</link> will be generated.
+    </para>
+    <para>
+      If provided, &repmgr; will substitute the placeholders <literal>%p</literal> with the node ID of the primary
+      being followed, <literal>%c</literal> with its <literal>conninfo</literal> string, and
+      <literal>%a</literal> with its node name.
+    </para>
+  </refsect1>
+
+  <refsect1>
+    <title>See also</title>
+    <para>
+     <xref linkend="repmgr-node-rejoin">
+    </para>
+  </refsect1>
+</refentry>
+

doc/repmgr-standby-follow.xml

@@ -1,258 +0,0 @@
-<refentry id="repmgr-standby-follow">
-  <indexterm>
-    <primary>repmgr standby follow</primary>
-  </indexterm>
-
-  <refmeta>
-    <refentrytitle>repmgr standby follow</refentrytitle>
-  </refmeta>
-
-  <refnamediv>
-    <refname>repmgr standby follow</refname>
-    <refpurpose>attach a running standby to a new upstream node</refpurpose>
-  </refnamediv>
-
-  <refsect1>
-    <title>Description</title>
-
-    <para>
-      Attaches the standby (&quot;follow candidate&quot;) to a new upstream node
-      (&quot;follow target&quot;). Typically this will be the primary, but this
-      command can also be used to attach the standby to another standby.
-    </para>
-    <para>
-      This command requires a valid
-      <filename>repmgr.conf</filename> file for the standby, either specified
-      explicitly with <literal>-f/--config-file</literal> or located in a
-      default location; no additional arguments are required.
-    </para>
-
-	<para>
-	  By default &repmgr; will attempt to attach the standby to the current primary.
-	  If <option>--upstream-node-id</option> is provided, &repmgr; will attempt
-	  to attach the standby to the specified node, which can be another standby.
-	</para>
-
-    <para>
-      This command will force a restart of the standby server, which must be
-      running.
-    </para>
-
-	<tip>
-      <para>
-		To re-add an inactive node to the replication cluster, use
-		<xref linkend="repmgr-node-rejoin"/>.
-      </para>
-	</tip>
-
-	<para>
-	  <command>repmgr standby follow</command> will wait up to
-	  <varname>standby_follow_timeout</varname> seconds (default: <literal>30</literal>)
-	  to verify the standby has actually connected to the new upstream node.
-	</para>
-
-	<note>
-	  <para>
-	    If <option>recovery_min_apply_delay</option> is set for the standby, it
-	    will not attach to the new upstream node until it has replayed available
-	    WAL.
-	  </para>
-	  <para>
-	    Conversely, if the standby is attached to an upstream standby
-	    which has <option>recovery_min_apply_delay</option> set, the upstream
-            standby's replay state may actually be behind that of its new downstream node.
-	  </para>
-	</note>
-
-  </refsect1>
-
-  <refsect1>
-    <title>Example</title>
-    <para>
-      <programlisting>
-      $ repmgr -f /etc/repmgr.conf standby follow
-      INFO: setting node 3's primary to node 2
-      NOTICE: restarting server using "pg_ctl -l /var/log/postgres/startup.log -w -D '/var/lib/postgres/data' restart"
-      waiting for server to shut down........ done
-      server stopped
-      waiting for server to start.... done
-      server started
-      NOTICE: STANDBY FOLLOW successful
-      DETAIL: node 3 is now attached to node 2</programlisting>
-    </para>
-  </refsect1>
-
-  <refsect1>
-    <title>Options</title>
-    <variablelist>
-
-      <varlistentry>
-        <term><option>--dry-run</option></term>
-        <listitem>
-          <para>
-            Check prerequisites but don't actually follow a new upstream node.
-          </para>
-          <para>
-            This will also verify whether the standby is capable of following the new upstream node.
-          </para>
-          <important>
-            <para>
-              If a standby was turned into a primary by removing <filename>recovery.conf</filename>
-              (<application>PostgreSQL 12</application> and later: <filename>standby.signal</filename>),
-              &repmgr; will <emphasis>not</emphasis> be able to determine whether that primary's timeline
-              has diverged from the timeline of the standby (&quot;follow candidate&quot;).
-            </para>
-            <para>
-              We recommend always to use <link linkend="repmgr-standby-promote"><command>repmgr standby promote</command></link>
-              to promote a standby to primary, as this will ensure that the new primary
-              will perform a timeline switch (making it practical to check for timeline divergence)
-              and also that &repmgr; metadata is updated correctly.
-            </para>
-          </important>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>--upstream-node-id</option></term>
-        <listitem>
-          <para>
-            Node ID of the new upstream node (&quot;follow target&quot;).
-          </para>
-          <para>
-            If not provided, &repmgr; will attempt to follow the current primary node.
-          </para>
-          <para>
-            Note that when using &repmgrd;, <option>--upstream-node-id</option>
-            should always be configured;
-			see <link linkend="repmgrd-automatic-failover-configuration">Automatic failover configuration</link>
-            for details.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>-w</option></term>
-        <term><option>--wait</option></term>
-        <listitem>
-          <para>
-            Wait for a primary to appear. &repmgr; will wait for up to
-            <varname>primary_follow_timeout</varname> seconds
-            (default: 60 seconds) to verify that the standby is following the new primary.
-            This value can be defined in <filename>repmgr.conf</filename>.
-          </para>
-        </listitem>
-      </varlistentry>
-
-    </variablelist>
-  </refsect1>
-
-  <refsect1>
-    <title>Execution</title>
-
-    <para>
-      Execute with the <literal>--dry-run</literal> option to test the follow operation as
-      far as possible, without actually changing the status of the node.
-    </para>
-
-    <para>
-      Note that &repmgr; will first attempt to determine whether the standby
-      (&quot;follow candidate&quot;) is capable of following the
-      new upstream node (&quot;follow target&quot;).
-    </para>
-    <para>
-      If, for example, the new upstream node has diverged from this node's timeline,
-      for example if the new upstream node was promoted to primary while this node
-      was still attached to the original primary, it will <emphasis>not</emphasis>
-      be possible to follow the new upstream node, and &repmgr; will emit an error
-      message like this:
-      <programlisting>
-ERROR: this node cannot attach to follow target node 3
-DETAIL: follow target server's timeline 2 forked off current database system timeline 1 before current recovery point 0/6108880</programlisting>
-    </para>
-    <para>
-      In this case, it may be possible to have this node follow the new upstream
-      using <command><link linkend="repmgr-node-rejoin">repmgr node rejoin</link></command>
-      with the <option>--force-rewind</option> to execute <command>pg_rewind</command>.
-      This does mean that transactions which exist on this node, but not the new upstream,
-      will be lost.
-    </para>
-
-  </refsect1>
-
-  <refsect1>
-    <title>Exit codes</title>
-    <para>
-      One of the following exit codes will be emitted by <command>repmgr standby follow</command>:
-    </para>
-    <variablelist>
-
-      <varlistentry>
-        <term><option>SUCCESS (0)</option></term>
-        <listitem>
-          <para>
-            The follow operation succeeded; or if <option>--dry-run</option> was provided,
-            no issues were detected which would prevent the follow operation.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>ERR_BAD_CONFIG (1)</option></term>
-        <listitem>
-          <para>
-            A configuration issue was detected which prevented &repmgr; from
-            continuing with the follow operation.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>ERR_NO_RESTART (4)</option></term>
-        <listitem>
-          <para>
-            The node could not be restarted.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>ERR_DB_CONN (6)</option></term>
-        <listitem>
-          <para>
-            &repmgr; was unable to establish a database connection to one of the nodes.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>ERR_FOLLOW_FAIL (23)</option></term>
-        <listitem>
-          <para>
-            &repmgr; was unable to complete the follow command.
-          </para>
-        </listitem>
-      </varlistentry>
-
-    </variablelist>
-
-  </refsect1>
-
-  <refsect1 id="repmgr-standby-follow-events">
-    <title>Event notifications</title>
-    <para>
-      A <literal>standby_follow</literal> <link linkend="event-notifications">event notification</link> will be generated.
-    </para>
-    <para>
-      If provided, &repmgr; will substitute the placeholders <literal>%p</literal> with the node ID of the node
-      being followed, <literal>%c</literal> with its <literal>conninfo</literal> string, and
-      <literal>%a</literal> with its node name.
-    </para>
-  </refsect1>
-
-  <refsect1>
-    <title>See also</title>
-    <para>
-     <xref linkend="repmgr-node-rejoin"/>
-    </para>
-  </refsect1>
-</refentry>

doc/repmgr-standby-promote.sgml

@@ -0,0 +1,60 @@
+<refentry id="repmgr-standby-promote">
+  <indexterm>
+    <primary>repmgr standby promote</primary>
+  </indexterm>
+
+  <refmeta>
+    <refentrytitle>repmgr standby promote</refentrytitle>
+  </refmeta>
+
+  <refnamediv>
+    <refname>repmgr standby promote</refname>
+    <refpurpose>promote a standby to a primary</refpurpose>
+  </refnamediv>
+
+  <refsect1>
+    <title>Description</title>
+    <para>
+      Promotes a standby to a primary if the current primary has failed. This
+      command requires a valid <filename>repmgr.conf</filename> file for the standby, either
+      specified explicitly  with <literal>-f/--config-file</literal> or located in a
+      default location; no additional arguments are required.
+    </para>
+    <para>
+      If the standby promotion succeeds, the server will not need to be
+      restarted. However any other standbys will need to follow the new server,
+      by using <xref linkend="repmgr-standby-follow">; if <application>repmgrd</application>
+        is active, it will handle this automatically.
+    </para>
+    <para>
+      Note that &repmgr; will wait for up to <varname>promote_check_timeout</varname> seconds
+      (default: 60 seconds) to verify that the standby has been promoted, and will
+      check the promotion every <varname>promote_check_interval</varname> seconds (default: 1 second).
+      Both values can be defined in <filename>repmgr.conf</filename>.
+    </para>
+
+  </refsect1>
+
+  <refsect1>
+    <title>Example</title>
+    <para>
+      <programlisting>
+      $ repmgr -f /etc/repmgr.conf standby promote
+      NOTICE: promoting standby to primary
+      DETAIL: promoting server "node2" (ID: 2) using "pg_ctl -l /var/log/postgres/startup.log -w -D '/var/lib/postgres/data' promote"
+      server promoting
+      DEBUG: setting node 2 as primary and marking existing primary as failed
+      NOTICE: STANDBY PROMOTE successful
+      DETAIL: server "node2" (ID: 2) was successfully promoted to primary</programlisting>
+    </para>
+  </refsect1>
+
+
+  <refsect1 id="repmgr-standby-promote-events">
+    <title>Event notifications</title>
+    <para>
+      A <literal>standby_promote</literal> <link linkend="event-notifications">event notification</link> will be generated.
+    </para>
+  </refsect1>
+
+</refentry>

doc/repmgr-standby-promote.xml

@@ -1,254 +0,0 @@
-<refentry id="repmgr-standby-promote">
-  <indexterm>
-    <primary>repmgr standby promote</primary>
-  </indexterm>
-
-  <refmeta>
-    <refentrytitle>repmgr standby promote</refentrytitle>
-  </refmeta>
-
-  <refnamediv>
-    <refname>repmgr standby promote</refname>
-    <refpurpose>promote a standby to a primary</refpurpose>
-  </refnamediv>
-
-  <refsect1>
-    <title>Description</title>
-    <para>
-      Promotes a standby to a primary if the current primary has failed. This
-      command requires a valid <filename>repmgr.conf</filename> file for the standby, either
-      specified explicitly with <literal>-f/--config-file</literal> or located in a
-      default location; no additional arguments are required.
-    </para>
-    <important>
-      <para>
-        If &repmgrd; is active, you must execute
-        <command><link linkend="repmgr-daemon-pause">repmgr daemon pause</link></command>
-        to temporarily disable &repmgrd; while making any changes
-        to the replication cluster.
-      </para>
-    </important>
-
-    <para>
-      If the standby promotion succeeds, the server will not need to be
-      restarted. However any other standbys will need to follow the new primary,
-      and will need to be restarted to do this.
-    </para>
-    <para>
-      Beginning with <link linkend="release-4.4">repmgr 4.4</link>,
-      the option <option>--siblings-follow</option> can be used to have
-      all other standbys (and a witness server, if in use)
-	  follow the new primary.
-    </para>
-
-    <note>
-      <para>
-        If using &repmgrd;, when invoking
-        <command>repmgr standby promote</command> (either directly via
-        the <option>promote_command</option>, or in a script called
-        via <option>promote_command</option>), <option>--siblings-follow</option>
-        <emphasis>must not</emphasis> be included as a
-        command line option for <command>repmgr standby promote</command>.
-      </para>
-    </note>
-
-    <para>
-      In <link linkend="release-4.3">repmgr 4.3</link> and earlier,
-      <command><link linkend="repmgr-standby-follow">repmgr standby follow</link></command>
-      must be executed on each standby individually.
-    </para>
-
-    <para>
-      &repmgr; will wait for up to <varname>promote_check_timeout</varname> seconds
-      (default: <literal>60</literal>) to verify that the standby has been promoted, and will
-      check the promotion every <varname>promote_check_interval</varname> seconds (default: 1 second).
-      Both values can be defined in <filename>repmgr.conf</filename>.
-    </para>
-
-    <note>
-      <para>
-        If WAL replay is paused on the standby, and not all WAL files on the standby have been
-        replayed, &repmgr; will not attempt to promote it.
-      </para>
-      <para>
-        This is because if WAL replay is paused, PostgreSQL itself will not react to a promote command
-        until WAL replay is resumed and all pending WAL has been replayed. This means
-        attempting to promote PostgreSQL in this state will leave PostgreSQL in a condition where the
-        promotion may occur at a unpredictable point in the future.
-      </para>
-      <para>
-        Note that if the standby is in archive recovery, &repmgr; will not be able to determine
-        if more WAL is pending replay, and will abort the promotion attempt if WAL replay is paused.
-      </para>
-    </note>
-
-  </refsect1>
-
-
-  <refsect1>
-    <title>Example</title>
-    <para>
-      <programlisting>
-      $ repmgr -f /etc/repmgr.conf standby promote
-      NOTICE: promoting standby to primary
-      DETAIL: promoting server "node2" (ID: 2) using "pg_ctl -l /var/log/postgres/startup.log -w -D '/var/lib/postgres/data' promote"
-      server promoting
-      DEBUG: setting node 2 as primary and marking existing primary as failed
-      NOTICE: STANDBY PROMOTE successful
-      DETAIL: server "node2" (ID: 2) was successfully promoted to primary</programlisting>
-    </para>
-  </refsect1>
-
-
-  <refsect1>
-    <title>Options</title>
-    <variablelist>
-      <varlistentry>
-
-        <term><option>--dry-run</option></term>
-        <listitem>
-          <para>
-            Check if this node can be promoted, but don't carry out the promotion.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><option>--siblings-follow</option></term>
-        <listitem>
-          <para>
-            Have all sibling nodes (nodes formerly attached to the same upstream
-            node as the promotion candidate) follow this node after it has been promoted.
-          </para>
-		  <para>
-			Note that a witness server, if in use, is also
-			counted as a &quot;sibling node&quot; as it needs to be instructed to
-			synchronise its metadata with the new primary.
-		  </para>
-          <important>
-            <para>
-              Do <emphasis>not</emphasis> provide this option when configuring
-              &repmgrd;'s <option>promote_command</option>.
-            </para>
-          </important>
-        </listitem>
-      </varlistentry>
-
-    </variablelist>
-  </refsect1>
-
-  <refsect1>
-    <title>Configuration file settings</title>
-   <para>
-     The following parameters in <filename>repmgr.conf</filename> are relevant to the
-     promote operation:
-    </para>
-
-    <para>
-      <itemizedlist spacing="compact" mark="bullet">
-
-       <listitem>
-        <indexterm>
-          <primary>promote_check_interval</primary>
-          <secondary>with &quot;repmgr standby promote &quot;</secondary>
-        </indexterm>
-         <simpara>
-           <literal>promote_check_interval</literal>:
-           interval (in seconds, default: 1 second) to wait between each check
-           to determine whether the standby has been promoted.
-		 </simpara>
-	   </listitem>
-
-       <listitem>
-        <indexterm>
-          <primary>promote_check_timeout</primary>
-          <secondary>with &quot;repmgr standby promote &quot;</secondary>
-        </indexterm>
-         <simpara>
-           <literal>promote_check_timeout</literal>:
-           time (in seconds, default: 60 seconds) to wait to verify that the standby has been promoted
-           before exiting with <literal>ERR_PROMOTION_FAIL</literal>.
-		 </simpara>
-	   </listitem>
-
-	  </itemizedlist>
-	</para>
-
-  </refsect1>
-
-  <refsect1>
-    <title>Exit codes</title>
-    <para>
-      Following exit codes can be emitted by <command>repmgr standby promote</command>:
-    </para>
-    <variablelist>
-      <varlistentry>
-        <term><option>SUCCESS (0)</option></term>
-        <listitem>
-          <para>
-            The standby was successfully promoted to primary.
-          </para>
-        </listitem>
-      </varlistentry>
-
-     <varlistentry>
-        <term><option>ERR_DB_CONN (6)</option></term>
-        <listitem>
-          <para>
-            &repmgr; was unable to connect to the local PostgreSQL node.
-          </para>
-          <para>
-            PostgreSQL must be running before the node can be promoted.
-          </para>
-        </listitem>
-      </varlistentry>
-
-     <varlistentry>
-       <term><option>ERR_PROMOTION_FAIL (8)</option></term>
-        <listitem>
-          <para>
-            The node could not be promoted to primary for one of the following
-            reasons:
-            <itemizedlist spacing="compact" mark="bullet">
-
-              <listitem>
-                <simpara>
-                  there is an existing primary node in the replication cluster
-                </simpara>
-              </listitem>
-
-              <listitem>
-                <simpara>
-                  the node is not a standby
-                </simpara>
-              </listitem>
-
-              <listitem>
-                <simpara>
-                  WAL replay is paused on the node
-                </simpara>
-              </listitem>
-
-              <listitem>
-                <simpara>
-                  execution of the PostgreSQL promote command failed
-                </simpara>
-              </listitem>
-
-            </itemizedlist>
-          </para>
-        </listitem>
-     </varlistentry>
-
-    </variablelist>
-  </refsect1>
-
-
-  <refsect1 id="repmgr-standby-promote-events">
-    <title>Event notifications</title>
-    <para>
-      A <literal>standby_promote</literal> <link linkend="event-notifications">event notification</link> will be generated.
-    </para>
-  </refsect1>
-
-</refentry>

doc/repmgr-standby-register.sgml

@@ -17,7 +17,7 @@
     <para>
       <command>repmgr standby register</command> adds a standby's information to
       the &repmgr; metadata. This command needs to be executed to enable
-      promote/follow operations and to allow &repmgrd; to work with the node.
+      promote/follow operations and to allow <application>repmgrd</application> to work with the node.
       An existing standby can be registered using this command. Execute with the
       <literal>--dry-run</literal> option to check what would happen without actually registering the
       standby.
@@ -28,7 +28,7 @@
         If providing the configuration file location with <literal>-f/--config-file</literal>,
         avoid using a relative path, as &repmgr; stores the configuration file location
         in the repmgr metadata for use when &repmgr; is executed remotely (e.g. during
-        <xref linkend="repmgr-standby-switchover"/>). &repmgr; will attempt to convert the
+        <xref linkend="repmgr-standby-switchover">). &repmgr; will attempt to convert the
           a relative path into an absolute one, but this may not be the same as the path you
           would explicitly provide (e.g. <filename>./repmgr.conf</filename> might be converted
           to <filename>/path/to/./repmgr.conf</filename>, whereas you'd normally write
@@ -59,7 +59,7 @@
    <para>
      Depending on your environment and workload, it may take some time for the standby's node record
      to propagate from the primary to the standby. Some actions (such as starting
-     &repmgrd;) require that the standby's node record
+     <application>repmgrd</application>) require that the standby's node record
      is present and up-to-date to function correctly.
    </para>
    <para>

doc/repmgr-standby-switchover.sgml

@@ -22,13 +22,11 @@
       passwordless SSH connection to the current primary.
     </para>
     <para>
-      If other nodes are connected to the demotion candidate, &repmgr; can instruct
+      If other standbys are connected to the demotion candidate, &repmgr; can instruct
       these to follow the new primary if the option <literal>--siblings-follow</literal>
       is specified. This requires a passwordless SSH connection between the promotion
-      candidate (new primary) and the nodes attached to the demotion candidate
-      (existing primary). Note that a witness server, if in use, is also
-	  counted as a &quot;sibling node&quot; as it needs to be instructed to
-	  synchronise its metadata with the new primary.
+      candidate (new primary) and the standbys attached to the demotion candidate
+      (existing primary).
     </para>
     <note>
       <para>
@@ -39,23 +37,23 @@
       </para>
       <para>
         &repmgr; will refuse to perform the switchover if an exclusive backup is running on
-        the current primary, or if WAL replay is paused on the standby.
+        the current primary.
       </para>
     </note>
     <para>
       For more details on performing a switchover, including preparation and configuration,
-      see section <xref linkend="performing-switchover"/>.
+      see section <xref linkend="performing-switchover">.
     </para>
 
     <note>
       <para>
         From <link linkend="release-4.2">repmgr 4.2</link>, &repmgr; will instruct any running
-        &repmgrd; instances to pause operations while the switchover
-        is being carried out, to prevent &repmgrd; from
-        unintentionally promoting a node. For more details, see <xref linkend="repmgrd-pausing"/>.
+        <application>repmgrd</application> instances to pause operations while the switchover
+        is being carried out, to prevent <application>repmgrd</application> from
+        unintentionally promoting a node. For more details, see <xref linkend="repmgrd-pausing">.
       </para>
       <para>
-        Users of &repmgr; versions prior to 4.2 should ensure that &repmgrd;
+        Users of &repmgr; versions prior to 4.2 should ensure that <application>repmgrd</application>
         is not running on any nodes while a switchover is being executed.
       </para>
     </note>
@@ -117,7 +115,7 @@
             (and the prerequisites for using <application>pg_rewind</application> are met).
             If using PostgreSQL 9.3 or 9.4, and the <application>pg_rewind</application>
             binary is not installed in the PostgreSQL <filename>bin</filename> directory,
-            provide its full path. For more details see also <xref linkend="switchover-pg-rewind"/>.
+            provide its full path. For more details see also <xref linkend="switchover-pg-rewind">.
           </para>
         </listitem>
       </varlistentry>
@@ -136,52 +134,23 @@
         <term><option>--repmgrd-no-pause</option></term>
         <listitem>
           <para>
-            Don't pause &repmgrd; while executing a switchover.
+            Don't pause <application>repmgrd</application> while executing a switchover.
           </para>
           <para>
             This option should not be used unless you take steps by other means
-            to ensure &repmgrd; is paused or not
+            to ensure <application>repmgrd</application> is paused or not
             running on all nodes.
-          </para>
-		  <para>
-            This option cannot be used together with <option>--repmgrd-force-unpause</option>.
-          </para>
-
-        </listitem>
-      </varlistentry>
-
-	  <varlistentry>
-        <term><option>--repmgrd-force-unpause</option></term>
-        <listitem>
-          <para>
-            Always unpause all &repmgrd; instances after executing a switchover. This will ensure that
-			any &repmgrd; instances which were paused before the switchover will be
-			unpaused.
-          </para>
-          <para>
-            This option cannot be used together with <option>--repmgrd-no-pause</option>.
           </para>
         </listitem>
       </varlistentry>
 
 
      <varlistentry>
-
         <term><option>--siblings-follow</option></term>
         <listitem>
           <para>
-            Have nodes attached to the old primary follow the new primary.
+            Have standbys attached to the old primary follow the new primary.
           </para>
-          <para>
-            This will also ensure that a witness node, if in use, is updated
-            with the new primary's data.
-          </para>
-          <note>
-            <para>
-              In a future &repmgr; release, <option>--siblings-follow</option> will be applied
-              by default.
-            </para>
-          </note>
         </listitem>
       </varlistentry>
     </variablelist>
@@ -192,47 +161,29 @@
     <title>Configuration file settings</title>
 
     <para>
-     The following parameters in <filename>repmgr.conf</filename> are relevant to the
+     Note that following parameters in <filename>repmgr.conf</filename> are relevant to the
      switchover operation:
-    </para>
+     <itemizedlist spacing="compact" mark="bullet">
 
-    <variablelist>
+       <listitem>
+         <simpara>
+           <literal>replication_lag_critical</literal>:
+           if replication lag (in seconds) on the standby exceeds this value, the
+           switchover will be aborted (unless the <literal>-F/--force</literal> option
+           is provided)
+         </simpara>
+       </listitem>
 
-      <varlistentry>
-        <term><option>replication_lag_critical</option></term>
-        <listitem>
-
-          <indexterm>
-            <primary>replication_lag_critical</primary>
-            <secondary>with &quot;repmgr standby switchover&quot;</secondary>
-          </indexterm>
-
-          <para>
-            If replication lag (in seconds) on the standby exceeds this value, the
-            switchover will be aborted (unless the <literal>-F/--force</literal> option
-            is provided)
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-
-        <term><option>shutdown_check_timeout</option></term>
-        <listitem>
-          <indexterm>
-            <primary>shutdown_check_timeout</primary>
-            <secondary>with &quot;repmgr standby switchover&quot;</secondary>
-          </indexterm>
-
-          <para>
-            The maximum number of seconds to wait for the
-            demotion candidate (current primary) to shut down, before aborting the switchover.
-          </para>
-          <para>
-            Note that this parameter is set on the node where <command>repmgr standby switchover</command>
-            is executed (promotion candidate); setting it on the demotion candidate (former primary) will
-            have no effect.
-          </para>
+       <listitem>
+         <simpara>
+           <literal>shutdown_check_timeout</literal>: maximum number of seconds to wait for the
+           demotion candidate (current primary) to shut down, before aborting the switchover.
+         </simpara>
+         <simpara>
+           Note that this parameter is set on the node where <command>repmgr standby switchover</command>
+           is executed (promotion candidate); setting it on the demotion candidate (former primary) will
+           have no effect.
+         </simpara>
          <note>
            <para>
              In versions prior to <link linkend="release-4.2">&repmgr; 4.2</link>, <command>repmgr standby switchover</command> would
@@ -240,76 +191,18 @@
              to determine the timeout for demotion candidate shutdown.
            </para>
          </note>
-        </listitem>
-      </varlistentry>
+       </listitem>
 
+       <listitem>
+         <simpara>
+           <literal>standby_reconnect_timeout</literal>:
+           maximum number of seconds to attempt to wait for the demotion candidate (former primary)
+           to reconnect to the promoted primary (default: 60 seconds)
+         </simpara>
+       </listitem>
 
-      <varlistentry>
-        <term><option>wal_receive_check_timeout</option></term>
-        <listitem>
-          <indexterm>
-            <primary>wal_receive_check_timeout</primary>
-          <secondary>with &quot;repmgr standby switchover&quot;</secondary>
-          </indexterm>
-
-          <para>
-            After the primary has shut down, the maximum number of seconds to wait for the
-            walreceiver on the standby to flush WAL to disk before comparing WAL receive location
-            with the primary's shut down location.
-         </para>
-        </listitem>
-      </varlistentry>
-
-
-      <varlistentry>
-
-        <term><option>standby_reconnect_timeout</option></term>
-        <listitem>
-          <indexterm>
-            <primary>standby_reconnect_timeout</primary>
-            <secondary>with &quot;repmgr standby switchover&quot;</secondary>
-          </indexterm>
-
-          <para>
-            The maximum number of seconds to attempt to wait for the demotion candidate (former primary)
-            to reconnect to the promoted primary (default: 60 seconds)
-          </para>
-          <para>
-            Note that this parameter is set on the node where <command>repmgr standby switchover</command>
-            is executed (promotion candidate); setting it on the demotion candidate (former primary) will
-            have no effect.
-          </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-
-        <term><option>node_rejoin_timeout</option></term>
-        <listitem>
-
-          <indexterm>
-            <primary>node_rejoin_timeout</primary>
-            <secondary>with &quot;repmgr standby switchover&quot;</secondary>
-          </indexterm>
-
-          <para>
-            maximum number of seconds to attempt to wait for the demotion candidate (former primary)
-            to reconnect to the promoted primary (default: 60 seconds)
-          </para>
-          <para>
-            Note that this parameter is set on the the demotion candidate (former primary);
-            setting it on the node where <command>repmgr standby switchover</command> is
-            executed will have no effect.
-          </para>
-          <para>
-            However, this value <emphasis>must</emphasis> be less than <option>standby_reconnect_timeout</option> on the
-            promotion candidate (the node where <command>repmgr standby switchover</command> is executed).
-          </para>
-        </listitem>
-      </varlistentry>
-
-    </variablelist>
-
+     </itemizedlist>
+    </para>
   </refsect1>
 
 
@@ -345,7 +238,7 @@
   <refsect1>
     <title>Exit codes</title>
     <para>
-      One of the following exit codes will be emitted by <command>repmgr standby switchover</command>:
+      Following exit codes can be emitted by <command>repmgr standby switchover</command>:
     </para>
     <variablelist>
 
@@ -353,8 +246,7 @@
         <term><option>SUCCESS (0)</option></term>
         <listitem>
           <para>
-            The switchover completed successfully; or if <option>--dry-run</option> was provided,
-            no issues were detected which would prevent the switchover operation.
+            The switchover completed successfully.
           </para>
         </listitem>
       </varlistentry>
@@ -385,10 +277,7 @@
   <refsect1>
     <title>See also</title>
     <para>
-      <xref linkend="repmgr-standby-follow"/>, <xref linkend="repmgr-node-rejoin"/>
-    </para>
-    <para>
-      For more details on performing a switchover operation, see the section <xref linkend="performing-switchover"/>.
+      For more details see the section <xref linkend="performing-switchover">.
     </para>
   </refsect1>
 

doc/repmgr-witness-register.sgml

@@ -20,7 +20,7 @@
       record to the &repmgr; metadata, and if necessary initialises the witness
       node by installing the &repmgr; extension and copying the &repmgr; metadata
       to the witness server. This command needs to be executed to enable
-      use of the witness server with &repmgrd;.
+      use of the witness server with <application>repmgrd</application>.
     </para>
     <para>
       When executing <command>repmgr witness register</command>, database connection
@@ -34,14 +34,6 @@
       witness node's <filename>repmgr.conf</filename>, unless these are explicitly
       provided as command line options.
     </para>
-
-    <note>
-      <para>
-        The primary server must be registered with <command><link linkend="repmgr-primary-register">repmgr primary register</link></command> before the witness
-        server can be registered.
-      </para>
-    </note>
-
     <para>
       Execute with the <option>--dry-run</option> option to check what would happen
       without actually registering the witness server.

doc/repmgr.sgml

@@ -1,16 +1,14 @@
-<!-- doc/repmgr.xml -->
+<!-- doc/src/sgml/postgres.sgml -->
 
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-          "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[
-          <!ENTITY % version SYSTEM "version.xml">
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V4.2//EN" [
+
+          <!ENTITY % version SYSTEM "version.sgml">
           %version;
 
-          <!ENTITY % filelist SYSTEM "filelist.xml">
+          <!ENTITY % filelist SYSTEM "filelist.sgml">
           %filelist;
 
           <!ENTITY repmgr "<productname>repmgr</productname>">
-          <!ENTITY repmgrd "<productname>repmgrd</productname>">
           <!ENTITY postgres "<productname>PostgreSQL</productname>">
 ]>
 
@@ -33,25 +31,25 @@
      latest version. Please check the
      <ulink url="https://repmgr.org/">repmgr website</ulink> for details
      about the current &repmgr; version as well as the
-     <ulink url="https://repmgr.org/docs/current/index.html">current repmgr documentation</ulink>.
+     <ulink url="https://repmgr.org/docs/current/index.html">current documentation</ulink>.
    </para>
 
    <para>
-    &repmgr; is developed by
+    &repmgr; was developed by
     <ulink url="https://2ndquadrant.com">2ndQuadrant</ulink>
-    along with contributions from other individuals and organisations.
+    along with contributions from other individuals and companies.
     Contributions from the community are appreciated and welcome - get
-    in touch via <ulink url="https://github.com/2ndQuadrant/repmgr">github</ulink>
-    or <ulink url="https://groups.google.com/group/repmgr">the mailing list/forum</ulink>.
+    in touch via <ulink url="https://github.com/2ndQuadrant/repmgr">github</>
+    or <ulink url="https://groups.google.com/group/repmgr">the mailing list/forum</>.
     Multiple 2ndQuadrant customers contribute funding
     to make repmgr development possible.
    </para>
 
    <para>
-     &repmgr; is fully supported by 2ndQuadrant's
-     <ulink url="https://www.2ndquadrant.com/en/support/support-postgresql/">24/7 Production Support</ulink>.
-     2ndQuadrant, a Major Sponsor of the PostgreSQL project, continues to develop and maintain &repmgr;.
-     Other organisations as well as individual developers are welcome to participate in the efforts.
+    2ndQuadrant, a Platinum sponsor of the PostgreSQL project,
+    continues to develop repmgr to meet internal needs and those of customers.
+     Other companies as well as individual developers
+    are welcome to participate in the efforts.
    </para>
   </abstract>
 
@@ -81,16 +79,22 @@
   &promoting-standby;
   &follow-new-primary;
   &switchover;
+  &configuring-witness-server;
   &event-notifications;
   &upgrading-repmgr;
  </part>
 
  <part id="using-repmgrd">
   <title>Using repmgrd</title>
-  &repmgrd-overview;
   &repmgrd-automatic-failover;
   &repmgrd-configuration;
-  &repmgrd-operation;
+  &repmgrd-demonstration;
+  &repmgrd-cascading-replication;
+  &repmgrd-network-split;
+  &repmgrd-witness-server;
+  &repmgrd-pausing;
+  &repmgrd-degraded-monitoring;
+  &repmgrd-monitoring;
   &repmgrd-bdr;
  </part>
 
@@ -117,8 +121,6 @@
   &repmgr-cluster-event;
   &repmgr-cluster-cleanup;
   &repmgr-daemon-status;
-  &repmgr-daemon-start;
-  &repmgr-daemon-stop;
   &repmgr-daemon-pause;
   &repmgr-daemon-unpause;
  </part>
@@ -127,8 +129,8 @@
  &appendix-signatures;
  &appendix-faq;
  &appendix-packages;
- &appendix-support;
 
- <index id="bookindex"></index>
+ <![%include-index;[&bookindex;]]>
+ <![%include-xslt-index;[<index id="bookindex"></index>]]>
 
 </book>

doc/repmgrd-automatic-failover.sgml

@@ -0,0 +1,17 @@
+<chapter id="repmgrd-automatic-failover" xreflabel="Automatic failover with repmgrd">
+ <indexterm>
+   <primary>repmgrd</primary>
+   <secondary>automatic failover</secondary>
+ </indexterm>
+
+ <title>Automatic failover with repmgrd</title>
+
+ <para>
+  <application>repmgrd</application> is a management and monitoring daemon which runs
+  on each node in a replication cluster. It can automate actions such as
+  failover and updating standbys to follow the new primary, as well as
+  providing monitoring information about the state of each standby.
+ </para>
+
+
+</chapter>

doc/repmgrd-automatic-failover.xml

@@ -1,925 +0,0 @@
-<chapter id="repmgrd-automatic-failover" xreflabel="Automatic failover with repmgrd">
-
- <title>Automatic failover with repmgrd</title>
-
- <indexterm>
-   <primary>repmgrd</primary>
-   <secondary>automatic failover</secondary>
- </indexterm>
-
- <para>
-  &repmgrd; is a management and monitoring daemon which runs
-  on each node in a replication cluster. It can automate actions such as
-  failover and updating standbys to follow the new primary, as well as
-  providing monitoring information about the state of each standby.
- </para>
-
- <sect1 id="repmgrd-witness-server" xreflabel="Using a witness server with repmgrd">
-   <title>Using a witness server</title>
-
- <indexterm>
-   <primary>repmgrd</primary>
-   <secondary>witness server</secondary>
- </indexterm>
-
- <indexterm>
-   <primary>witness server</primary>
-   <secondary>repmgrd</secondary>
- </indexterm>
-
- <para>
-   A <xref linkend="witness-server"/> is a normal PostgreSQL instance which
-   is not part of the streaming replication cluster; its purpose is, if a
-   failover situation occurs, to provide proof that it is the primary server
-   itself which is unavailable, rather than e.g. a network split between
-   different physical locations.
- </para>
-
- <para>
-   A typical use case for a witness server is a two-node streaming replication
-   setup, where the primary and standby are in different locations (data centres).
-   By creating a witness server in the same location (data centre) as the primary,
-   if the primary becomes unavailable it's possible for the standby to decide whether
-   it can promote itself without risking a "split brain" scenario: if it can't see either the
-   witness or the primary server, it's likely there's a network-level interruption
-   and it should not promote itself. If it can see the witness but not the primary,
-   this proves there is no network interruption and the primary itself is unavailable,
-   and it can therefore promote itself (and ideally take action to fence the
-   former primary).
- </para>
- <note>
-   <para>
-     <emphasis>Never</emphasis> install a witness server on the same physical host
-     as another node in the replication cluster managed by &repmgr; - it's essential
-     the witness is not affected in any way by failure of another node.
-   </para>
- </note>
- <para>
-   For more complex replication scenarios, e.g. with multiple datacentres, it may
-   be preferable to use location-based failover, which ensures that only nodes
-   in the same location as the primary will ever be promotion candidates;
-   see <xref linkend="repmgrd-network-split"/> for more details.
- </para>
-
- <note>
-   <simpara>
-     A witness server will only be useful if &repmgrd;
-     is in use.
-   </simpara>
- </note>
-
- <sect2 id="creating-witness-server">
-   <title>Creating a witness server</title>
- <para>
-   To create a witness server, set up a normal PostgreSQL instance on a server
-   in the same physical location as the cluster's primary server.
- </para>
- <para>
-   This instance should <emphasis>not</emphasis> be on the same physical host as the primary server,
-   as otherwise if the primary server fails due to hardware issues, the witness
-   server will be lost too.
- </para>
- <note>
-   <simpara>
-     &repmgr; 3.3 and earlier provided a <command>repmgr create witness</command>
-     command, which would automatically create a PostgreSQL instance. However
-     this often resulted in an unsatisfactory, hard-to-customise instance.
-   </simpara>
- </note>
- <para>
-   The witness server should be configured in the same way as a normal
-   &repmgr; node; see section <xref linkend="configuration"/>.
- </para>
- <para>
-   Register the witness server with <xref linkend="repmgr-witness-register"/>.
-   This will create the &repmgr; extension on the witness server, and make
-   a copy of the &repmgr; metadata.
- </para>
- <note>
-   <simpara>
-    As the witness server is not part of the replication cluster, further
-    changes to the &repmgr; metadata will be synchronised by
-    &repmgrd;.
-   </simpara>
- </note>
- <para>
-   Once the witness server has been configured, &repmgrd;
-   should be started.
- </para>
-
- <para>
-  To unregister a witness server, use <xref linkend="repmgr-witness-unregister"/>.
- </para>
-
- </sect2>
-
-</sect1>
-
-
-<sect1 id="repmgrd-network-split" xreflabel="Handling network splits with repmgrd">
- <title>Handling network splits with repmgrd</title>
- <indexterm>
-   <primary>repmgrd</primary>
-   <secondary>network splits</secondary>
- </indexterm>
-
- <indexterm>
-   <primary>network splits</primary>
- </indexterm>
-
- <para>
-  A common pattern for replication cluster setups is to spread servers over
-  more than one datacentre. This can provide benefits such as geographically-
-  distributed read replicas and DR (disaster recovery capability). However
-  this also means there is a risk of disconnection at network level between
-  datacentre locations, which would result in a split-brain scenario if
-  servers in a secondary data centre were no longer able to see the primary
-  in the main data centre and promoted a standby among themselves.
- </para>
- <para>
-  &repmgr; enables provision of &quot;<xref linkend="witness-server"/>&quot; to
-  artificially create a quorum of servers in a particular location, ensuring
-  that nodes in another location will not elect a new primary if they
-  are unable to see the majority of nodes. However this approach does not
-  scale well, particularly with more complex replication setups, e.g.
-  where the majority of nodes are located outside of the primary datacentre.
-  It also means the <literal>witness</literal> node needs to be managed as an
-  extra PostgreSQL instance outside of the main replication cluster, which
-  adds administrative and programming complexity.
- </para>
- <para>
-  <literal>repmgr4</literal> introduces the concept of <literal>location</literal>:
-  each node is associated with an arbitrary location string (default is
-  <literal>default</literal>); this is set in <filename>repmgr.conf</filename>, e.g.:
-  <programlisting>
-    node_id=1
-    node_name=node1
-    conninfo='host=node1 user=repmgr dbname=repmgr connect_timeout=2'
-    data_directory='/var/lib/postgresql/data'
-    location='dc1'</programlisting>
- </para>
- <para>
-  In a failover situation, &repmgrd; will check if any servers in the
-  same location as the current primary node are visible.  If not, &repmgrd;
-  will assume a network interruption and not promote any node in any
-  other location (it will however enter <link linkend="repmgrd-degraded-monitoring">degraded monitoring</link>
-  mode until a primary becomes visible).
- </para>
-
-</sect1>
-
-
-<sect1 id="repmgrd-primary-visibility-consensus" xreflabel="Primary visibility consensus">
-  <title>Primary visibility consensus</title>
-
-  <indexterm>
-   <primary>repmgrd</primary>
-   <secondary>primary visibility consensus</secondary>
-  </indexterm>
-
-  <indexterm>
-   <primary>primary_visibility_consensus</primary>
-  </indexterm>
-
-  <para>
-    In more complex replication setups, particularly where replication occurs between
-    multiple datacentres, it's possible that some but not all standbys get cut off from the
-    primary (but not from the other standbys).
-  </para>
-  <para>
-    In this situation, normally it's not desirable for any of the standbys which have been
-    cut off to initiate a failover, as the primary is still functioning and standbys are
-    connected. Beginning with <link linkend="release-4.4">&repmgr; 4.4</link>
-    it is now possible for the affected standbys to build a consensus about whether
-    the primary is still available to some standbys (&quot;primary visibility consensus&quot;).
-    This is done by polling each standby for the time it last saw the primary;
-    if any have seen the primary very recently, it's reasonable
-    to infer that the primary is still available and a failover should not be started.
-  </para>
-
-  <para>
-    The time the primary was last seen by each node can be checked by executing
-    <link linkend="repmgr-daemon-status"><command>repmgr daemon status</command></link>,
-    which includes this in its output, e.g.:
-    <programlisting>$ repmgr -f /etc/repmgr.conf daemon status
- ID | Name  | Role    | Status    | Upstream | repmgrd | PID   | Paused? | Upstream last seen
-----+-------+---------+-----------+----------+---------+-------+---------+--------------------
- 1  | node1 | primary | * running |          | running | 96563 | no      | n/a
- 2  | node2 | standby |   running | node1    | running | 96572 | no      | 1 second(s) ago
- 3  | node3 | standby |   running | node1    | running | 96584 | no      | 0 second(s) ago</programlisting>
-
-  </para>
-
-  <para>
-    To enable this functionality, in <filename>repmgr.conf</filename> set:
-    <programlisting>
-      primary_visibility_consensus=true</programlisting>
-  </para>
-  <note>
-    <para>
-      <option>primary_visibility_consensus</option> <emphasis>must</emphasis> be set to
-      <literal>true</literal> on all nodes for it to be effective.
-    </para>
-  </note>
-
-  <para>
-    The following sample &repmgrd; log output demonstrates the behaviour in a situation
-    where one of three standbys is no longer able to connect to the primary, but <emphasis>can</emphasis>
-    connect to the two other standbys (&quot;sibling nodes&quot;):
-    <programlisting>
-    [2019-05-17 05:36:12] [WARNING] unable to reconnect to node 1 after 3 attempts
-    [2019-05-17 05:36:12] [INFO] 2 active sibling nodes registered
-    [2019-05-17 05:36:12] [INFO] local node's last receive lsn: 0/7006E58
-    [2019-05-17 05:36:12] [INFO] checking state of sibling node "node3" (ID: 3)
-    [2019-05-17 05:36:12] [INFO] node "node3" (ID: 3) reports its upstream is node 1, last seen 1 second(s) ago
-    [2019-05-17 05:36:12] [NOTICE] node 3 last saw primary node 1 second(s) ago, considering primary still visible
-    [2019-05-17 05:36:12] [INFO] last receive LSN for sibling node "node3" (ID: 3) is: 0/7006E58
-    [2019-05-17 05:36:12] [INFO] node "node3" (ID: 3) has same LSN as current candidate "node2" (ID: 2)
-    [2019-05-17 05:36:12] [INFO] checking state of sibling node "node4" (ID: 4)
-    [2019-05-17 05:36:12] [INFO] node "node4" (ID: 4) reports its upstream is node 1, last seen 0 second(s) ago
-    [2019-05-17 05:36:12] [NOTICE] node 4 last saw primary node 0 second(s) ago, considering primary still visible
-    [2019-05-17 05:36:12] [INFO] last receive LSN for sibling node "node4" (ID: 4) is: 0/7006E58
-    [2019-05-17 05:36:12] [INFO] node "node4" (ID: 4) has same LSN as current candidate "node2" (ID: 2)
-    [2019-05-17 05:36:12] [INFO] 2 nodes can see the primary
-    [2019-05-17 05:36:12] [DETAIL] following nodes can see the primary:
-     - node "node3" (ID: 3): 1 second(s) ago
-     - node "node4" (ID: 4): 0 second(s) ago
-    [2019-05-17 05:36:12] [NOTICE] cancelling failover as some nodes can still see the primary
-    [2019-05-17 05:36:12] [NOTICE] election cancelled
-    [2019-05-17 05:36:14] [INFO] node "node2" (ID: 2) monitoring upstream node "node1" (ID: 1) in degraded state</programlisting>
-    In this situation it will cancel the failover and enter degraded monitoring node,
-    waiting for the primary to reappear.
-  </para>
-</sect1>
-
-<sect1 id="repmgrd-standby-disconnection-on-failover" xreflabel="Standby disconnection on failover">
-  <title>Standby disconnection on failover</title>
-
-  <indexterm>
-   <primary>repmgrd</primary>
-   <secondary>standby disconnection on failover</secondary>
- </indexterm>
-
-  <indexterm>
-    <primary>standby disconnection on failover</primary>
-  </indexterm>
-
-  <para>
-    If <option>standby_disconnect_on_failover</option> is set to <literal>true</literal> in
-    <filename>repmgr.conf</filename>, in a failover situation &repmgrd; will forcibly disconnect
-    the local node's WAL receiver before making a failover decision.
-  </para>
-  <note>
-    <para>
-      <option>standby_disconnect_on_failover</option> is available from PostgreSQL 9.5 and later.
-      Additionally this requires that the <literal>repmgr</literal> database user is a superuser.
-    </para>
-  </note>
-  <para>
-    By doing this, it's possible to ensure that, at the point the failover decision is made, no nodes
-    are receiving data from the primary and their LSN location will be static.
-  </para>
-  <important>
-    <para>
-      <option>standby_disconnect_on_failover</option> <emphasis>must</emphasis> be set to the same value on
-      all nodes.
-    </para>
-  </important>
-  <para>
-    Note that when using <option>standby_disconnect_on_failover</option> there will be a delay of 5 seconds
-    plus however many seconds it takes to confirm the WAL receiver is disconnected before
-    &repmgrd; proceeds with the failover decision.
-  </para>
-  <para>
-    Following the failover operation, no matter what the outcome, each node will reconnect its WAL receiver.
-  </para>
-  <para>
-    If using <option>standby_disconnect_on_failover</option>, we recommend that the
-    <option>primary_visibility_consensus</option> option is also used.
-  </para>
-
-</sect1>
-
-<sect1 id="repmgrd-failover-validation" xreflabel="Failover validation">
-  <title>Failover validation</title>
-
-  <indexterm>
-   <primary>repmgrd</primary>
-   <secondary>failover validation</secondary>
- </indexterm>
-
-  <indexterm>
-    <primary>failover validation</primary>
-  </indexterm>
-
-  <para>
-    From <link linkend="release-4.3">repmgr 4.3</link>, &repmgr; makes it possible to provide a script
-    to &repmgrd; which, in a failover situation,
-    will be executed by the promotion candidate (the node which has been selected
-    to be the new primary) to confirm whether the node should actually be promoted.
-  </para>
-  <para>
-    To use this, <option>failover_validation_command</option> in <filename>repmgr.conf</filename>
-    to a script executable by the <literal>postgres</literal> system user, e.g.:
-    <programlisting>
-      failover_validation_command=/path/to/script.sh %n %a</programlisting>
-  </para>
-  <para>
-    The <literal>%n</literal> parameter will be replaced with the node ID, and the
-    <literal>%a</literal> parameter will be replaced by the node name when the script is executed.
-  </para>
-  <para>
-    This script must return an exit code of <literal>0</literal> to indicate the node should promote itself.
-    Any other value will result in the promotion being aborted and the election rerun.
-    There is a pause of <option>election_rerun_interval</option> seconds before the election is rerun.
-  </para>
-  <para>
-    Sample &repmgrd; log file output during which the failover validation
-    script rejects the proposed promotion candidate:
-    <programlisting>
-[2019-03-13 21:01:30] [INFO] visible nodes: 2; total nodes: 2; no nodes have seen the primary within the last 4 seconds
-[2019-03-13 21:01:30] [NOTICE] promotion candidate is "node2" (ID: 2)
-[2019-03-13 21:01:30] [NOTICE] executing "failover_validation_command"
-[2019-03-13 21:01:30] [DETAIL] /usr/local/bin/failover-validation.sh 2
-[2019-03-13 21:01:30] [INFO] output returned by failover validation command:
-Node ID: 2
-
-[2019-03-13 21:01:30] [NOTICE] failover validation command returned a non-zero value: "1"
-[2019-03-13 21:01:30] [NOTICE] promotion candidate election will be rerun
-[2019-03-13 21:01:30] [INFO] 1 followers to notify
-[2019-03-13 21:01:30] [NOTICE] notifying node "node3" (ID: 3) to rerun promotion candidate selection
-INFO:  node 3 received notification to rerun promotion candidate election
-[2019-03-13 21:01:30] [NOTICE] rerunning election after 15 seconds ("election_rerun_interval")</programlisting>
-  </para>
-
-
-</sect1>
-
- <sect1 id="cascading-replication" xreflabel="Cascading replication">
-  <title>repmgrd and cascading replication</title>
-
-  <indexterm>
-   <primary>repmgrd</primary>
-   <secondary>cascading replication</secondary>
-  </indexterm>
-
- <indexterm>
-   <primary>cascading replication</primary>
-   <secondary>repmgrd</secondary>
- </indexterm>
-
- <para>
-  Cascading replication - where a standby can connect to an upstream node and not
-  the primary server itself - was introduced in PostgreSQL 9.2. &repmgr; and
-  &repmgrd; support cascading replication by keeping track of the relationship
-  between standby servers - each node record is stored with the node id of its
-  upstream ("parent") server (except of course the primary server).
- </para>
- <para>
-  In a failover situation where the primary node fails and a top-level standby
-  is promoted, a standby connected to another standby will not be affected
-  and continue working as normal (even if the upstream standby it's connected
-  to becomes the primary node). If however the node's direct upstream fails,
-  the &quot;cascaded standby&quot; will attempt to reconnect to that node's parent
-  (unless <varname>failover</varname> is set to <literal>manual</literal> in
-  <filename>repmgr.conf</filename>).
- </para>
-
-  </sect1>
-
-<sect1 id="repmgrd-primary-child-disconnection" xreflabel="Monitoring standby disconnections on the primary">
-  <title>Monitoring standby disconnections on the primary node</title>
-
-  <indexterm>
-   <primary>repmgrd</primary>
-   <secondary>standby disconnection</secondary>
-  </indexterm>
-
-  <indexterm>
-   <primary>repmgrd</primary>
-   <secondary>child node disconnection</secondary>
-  </indexterm>
-
-  <note>
-    <para>
-      This functionality is available in <link linkend="release-4.4">&repmgr; 4.4</link> and later.
-    </para>
-  </note>
-  <para>
-    When running on the primary node, &repmgrd; can
-    monitor connections and in particular disconnections by its attached
-    child nodes (standbys, and if in use, the witness server), and optionally
-    execute a custom command if certain criteria are met (such as the number of
-    attached nodes falling to zero following a failover to a new primary); this
-    command can be used for example to &quot;fence&quot; the node and ensure it
-    is isolated from any applications attempting to access the replication cluster.
-  </para>
-
-  <note>
-	<para>
-	  Currently &repmgrd; can only detect disconnections
-	  of streaming replication standbys and cannot determine whether a standby
-	  has disconnected and fallen back to archive recovery.
-	</para>
-	<para>
-	  See section <link linkend="repmgrd-primary-child-disconnection-caveats">caveats</link> below.
-	</para>
-  </note>
-
-  <sect2 id="repmgrd-primary-child-disconnection-monitoring-process">
-	<title>Standby disconnections monitoring process and criteria</title>
-	<para>
-	  &repmgrd; monitors attached child nodes and decides
-	  whether to invoke the user-defined command based on the following process
-	  and criteria:
-    <itemizedlist>
-
-      <listitem>
-        <para>
-          Every few seconds (defined by the configuration parameter <varname>child_nodes_check_interval</varname>;
-          default: <literal>5</literal> seconds, a value of <literal>0</literal> disables this altogether), &repmgrd; queries
-          the <literal>pg_stat_replication</literal> system view and compares
-          the nodes present there against the list of nodes registered with &repmgr; which
-          should be attached to the primary.
-        </para>
-        <para>
-          If a witness server is in use, &repmgrd; connects to it and checks which upstream node
-          it is following.
-        </para>
-      </listitem>
-
-      <listitem>
-        <para>
-          If a child node (standby) is no longer present in <literal>pg_stat_replication</literal>,
-          &repmgrd; notes the time it detected the node's absence, and additionally generates a
-          <literal>child_node_disconnect</literal> event.
-        </para>
-        <para>
-          If a witness server is in use, and it is no longer following the primary, or not
-          reachable at all, &repmgrd; notes the time it detected the node's absence, and additionally generates a
-          <literal>child_node_disconnect</literal> event.
-        </para>
-      </listitem>
-
-      <listitem>
-        <para>
-          If a child node (standby) which was absent from <literal>pg_stat_replication</literal> reappears,
-          &repmgrd; clears the time it detected the node's absence, and additionally generates a
-          <literal>child_node_reconnect</literal> event.
-        </para>
-        <para>
-          If a witness server is in use, which was previously not reachable or not following the
-          primary node, has become reachable and is following the primary node,  &repmgrd; clears the
-          time it detected the node's absence, and additionally generates a
-          <literal>child_node_reconnect</literal> event.
-        </para>
-      </listitem>
-
-      <listitem>
-        <para>
-          If an entirely new child node (standby or witness) is detected, &repmgrd; adds it to its internal list
-          and additionally generates a <literal>child_node_new_connect</literal> event.
-        </para>
-      </listitem>
-
-      <listitem>
-        <para>
-          If the <varname>child_nodes_disconnect_command</varname> parameter is set in
-          <filename>repmgr.conf</filename>, &repmgrd; will then loop through all child nodes.
-          If it determines that insufficient child nodes are connected, and a
-          minimum of <varname>child_nodes_disconnect_timeout</varname> seconds (default: <literal>30</literal>)
-          has elapsed since  the last node became disconnected, &repmgrd; will then execute the
-          <varname>child_nodes_disconnect_command</varname> script.
-        </para>
-        <para>
-          By default, the <varname>child_nodes_disconnect_command</varname> will only be executed
-          if all child nodes are disconnected. If <varname>child_nodes_connected_min_count</varname>
-          is set, the <varname>child_nodes_disconnect_command</varname> script will be triggered
-          if the number of connected child nodes falls below the specified value (e.g.
-          if set to <literal>2</literal>, the script will be triggered if only one child node
-          is connected). Alternatively, if <varname>child_nodes_disconnect_min_count</varname>
-          and more than that number of child nodes disconnects, the script will be triggered.
-        </para>
-        <note>
-          <para>
-            By default, a witness node, if in use, will <emphasis>not</emphasis> be counted as a
-            child node for the purposes of determining whether to execute
-            <varname>child_nodes_disconnect_command</varname>.
-          </para>
-          <para>
-            To enable the witness node to be counted as a child node, set
-            <varname>child_nodes_connected_include_witness</varname> in <filename>repmgr.conf</filename>
-            to <literal>true</literal>
-            (and <link linkend="repmgrd-reloading-configuration">reload the configuration</link> if &repmgrd;
-            is running).
-          </para>
-        </note>
-      </listitem>
-
-      <listitem>
-        <para>
-          Note that child nodes which are not attached when &repmgrd;
-          starts will <emphasis>not</emphasis> be considered as missing, as &repmgrd;
-          cannot know why they are not attached.
-        </para>
-      </listitem>
-
-    </itemizedlist>
-	</para>
-  </sect2>
-
-  <sect2 id="repmgrd-primary-child-disconnection-example">
-	<title>Standby disconnections monitoring process example</title>
-	<para>
-	  This example shows typical &repmgrd; log output from a three-node cluster
-	  (primary and two child nodes), with <varname>child_nodes_connected_min_count</varname>
-	  set to <literal>2</literal>.
-	</para>
-	<para>
-	  &repmgrd; on the primary has started up, while two child
-	  nodes are being provisioned:
-	  <programlisting>
-[2019-04-24 15:25:33] [INFO] monitoring primary node "node1" (ID: 1) in normal state
-[2019-04-24 15:25:35] [NOTICE] new node "node2" (ID: 2) has connected
-[2019-04-24 15:25:35] [NOTICE] 1 (of 1) child nodes are connected, but at least 2 child nodes required
-[2019-04-24 15:25:35] [INFO] no child nodes have detached since repmgrd startup
-(...)
-[2019-04-24 15:25:44] [NOTICE] new node "node3" (ID: 3) has connected
-[2019-04-24 15:25:46] [INFO] monitoring primary node "node1" (ID: 1) in normal state
-(...)</programlisting>
-	</para>
-	<para>
-	  One of the child nodes has disconnected; &repmgrd;
-	  is now waiting <varname>child_nodes_disconnect_timeout</varname> seconds
-	  before executing <varname>child_nodes_disconnect_command</varname>:
-	  <programlisting>
-[2019-04-24 15:28:11] [INFO] monitoring primary node "node1" (ID: 1) in normal state
-[2019-04-24 15:28:17] [INFO] monitoring primary node "node1" (ID: 1) in normal state
-[2019-04-24 15:28:19] [NOTICE] node "node3" (ID: 3) has disconnected
-[2019-04-24 15:28:19] [NOTICE] 1 (of 2) child nodes are connected, but at least 2 child nodes required
-[2019-04-24 15:28:19] [INFO] most recently detached child node was 3 (ca. 0 seconds ago), not triggering "child_nodes_disconnect_command"
-[2019-04-24 15:28:19] [DETAIL] "child_nodes_disconnect_timeout" set To 30 seconds
-(...)</programlisting>
-	</para>
-	<para>
-	  <varname>child_nodes_disconnect_command</varname> is executed once:
-	  <programlisting>
-[2019-04-24 15:28:49] [INFO] most recently detached child node was 3 (ca. 30 seconds ago), triggering "child_nodes_disconnect_command"
-[2019-04-24 15:28:49] [INFO] "child_nodes_disconnect_command" is:
-	"/usr/bin/fence-all-the-things.sh"
-[2019-04-24 15:28:51] [NOTICE] 1 (of 2) child nodes are connected, but at least 2 child nodes required
-[2019-04-24 15:28:51] [INFO] "child_nodes_disconnect_command" was previously executed, taking no action</programlisting>
-	</para>
-
-  </sect2>
-
-  <sect2 id="repmgrd-primary-child-disconnection-caveats">
-	<title>Standby disconnections monitoring caveats</title>
-	<para>
-	  The follwing caveats should be considered if you are intending to use this functionality.
-	</para>
-	<para>
-	  <itemizedlist mark="bullet">
-		<listitem>
-          <para>
-			If a child node is configured to use archive recovery, it's possible that
-			the child node will disconnect from the primary node and fall back to
-			archive recovery. In this case &repmgrd;
-			will nevertheless register a node disconnection.
-		  </para>
-		</listitem>
-
-        <listitem>
-          <para>
-			&repmgr; relies on <varname>application_name</varname> in the child node's
-			<varname>primary_conninfo</varname> string to be the same as the node name
-			defined in the node's <filename>repmgr.conf</filename> file. Furthermore,
-			this <varname>application_name</varname> must be unique across the replication
-			cluster.
-          </para>
-		  <para>
-			If a custom <varname>application_name</varname> is used, or the
-			<varname>application_name</varname> is not unique across the replication
-			cluster, &repmgr; will not be able to reliably monitor child node connections.
-		  </para>
-        </listitem>
-
-	  </itemizedlist>
-	</para>
-  </sect2>
-
-
-  <sect2 id="repmgrd-primary-child-disconnection-configuration">
-	<title>Standby disconnections monitoring process configuration</title>
-	<para>
-	  The following parameters, set in <filename>repmgr.conf</filename>,
-	  control how child node disconnection monitoring operates.
-	</para>
-	<variablelist>
-
-      <varlistentry>
-        <term><varname>child_nodes_check_interval</varname></term>
-        <listitem>
-          <indexterm>
-		    <primary>child_nodes_check_interval</primary>
-		    <secondary>child node disconnection monitoring</secondary>
-		  </indexterm>
-
-		  <para>
-			Interval (in seconds) after which &repmgrd; queries the
-			<literal>pg_stat_replication</literal> system view and compares the nodes present
-			there against the list of nodes registered with repmgr which should be attached to the primary.
-		  </para>
-		  <para>
-			Default is <literal>5</literal> seconds, a value of <literal>0</literal> disables this check
-			altogether.
-		  </para>
-		</listitem>
-	  </varlistentry>
-
-	  <varlistentry>
-        <term><varname>child_nodes_disconnect_command</varname></term>
-
-        <listitem>
-          <indexterm>
-		    <primary>child_nodes_disconnect_command</primary>
-		    <secondary>child node disconnection monitoring</secondary>
-		  </indexterm>
-
-		  <para>
-			User-definable script to be executed when &repmgrd;
-			determines that an insufficient number of child nodes are connected. By default
-			the script is executed when no child nodes are executed, but the execution
-			threshold can be modified by setting one of <varname>child_nodes_connected_min_count</varname>
-			or<varname>child_nodes_disconnect_min_count</varname> (see below).
-		  </para>
-		  <para>
-			The <varname>child_nodes_disconnect_command</varname> script can be
-			any user-defined script or program. It <emphasis>must</emphasis> be able
-			to be executed by the system user under which the PostgreSQL server itself
-			runs (usually <literal>postgres</literal>).
-		  </para>
-		  <note>
-			<para>
-			  If <varname>child_nodes_disconnect_command</varname> is not set, no action
-			  will be taken.
-			</para>
-		  </note>
-		  <para>
-			If specified, the following format placeholder will be substituted when
-			executing <varname>child_nodes_disconnect_command</varname>:
-		  </para>
-
-		   <variablelist>
-			 <varlistentry>
-			   <term><option>%p</option></term>
-			   <listitem>
-				 <para>
-				   ID of the node executing the <varname>child_nodes_disconnect_command</varname> script.
-				 </para>
-			   </listitem>
-			 </varlistentry>
-		   </variablelist>
-
-		  <para>
-			The <varname>child_nodes_disconnect_command</varname> script will only be executed once
-			while the criteria for its execution are met. If the criteria for its execution are no longer
-			met (i.e. some child nodes have reconnected), it will be executed again if
-			the criteria for its execution are met again.
-          </para>
-          <para>
-			The <varname>child_nodes_disconnect_command</varname> script will not be executed if
-			&repmgrd; is <link linkend="repmgrd-pausing">paused</link>.
-          </para>
-
-		</listitem>
-	  </varlistentry>
-
-	  <varlistentry>
-        <term><varname>child_nodes_disconnect_timeout</varname></term>
-
-        <listitem>
-          <indexterm>
-		    <primary>child_nodes_disconnect_timeout</primary>
-		    <secondary>child node disconnection monitoring</secondary>
-		  </indexterm>
-
-		  <para>
-			If &repmgrd; determines that an insufficient number of
-			child nodes are connected, it will wait for the specified number of seconds
-			to execute the <varname>child_nodes_disconnect_command</varname>.
-		  </para>
-		  <para>
-			Default: <literal>30</literal> seconds.
-		  </para>
-		</listitem>
-	  </varlistentry>
-
-      <varlistentry>
-        <term><varname>child_nodes_connected_min_count</varname></term>
-        <listitem>
-          <indexterm>
-		    <primary>child_nodes_connected_min_count</primary>
-		    <secondary>child node disconnection monitoring</secondary>
-		  </indexterm>
-
-		  <para>
-			If the number of child nodes connected falls below the number specified in
-			this parameter, the <varname>child_nodes_disconnect_command</varname> script
-			will be executed.
-		  </para>
-		  <para>
-			For example, if <varname>child_nodes_connected_min_count</varname> is set
-			to <literal>2</literal>, the <varname>child_nodes_disconnect_command</varname>
-			script will be executed if one or no child nodes are connected.
-		  </para>
-		  <para>
-			Note that <varname>child_nodes_connected_min_count</varname> overrides any value
-			set in <varname>child_nodes_disconnect_min_count</varname>.
-		  </para>
-		  <para>
-			If neither of <varname>child_nodes_connected_min_count</varname> or
-			<varname>child_nodes_disconnect_min_count</varname> are set,
-			the <varname>child_nodes_disconnect_command</varname> script
-			will be executed when no child nodes are connected.
-		  </para>
-          <para>
-            A witness node, if in use, will not be counted as a child node unless
-            <varname>child_nodes_connected_include_witness</varname> is set to <literal>true</literal>.
-          </para>
-		</listitem>
-	  </varlistentry>
-
-
-	  <varlistentry>
-        <term><varname>child_nodes_disconnect_min_count</varname></term>
-        <listitem>
-          <indexterm>
-		    <primary>child_nodes_disconnect_min_count</primary>
-		    <secondary>child node disconnection monitoring</secondary>
-		  </indexterm>
-
-		  <para>
-			If the number of disconnected child nodes exceeds the number specified in
-			this parameter, the <varname>child_nodes_disconnect_command</varname> script
-			will be executed.
-		  </para>
-
-		  <para>
-			For example, if <varname>child_nodes_disconnect_min_count</varname> is set
-			to <literal>2</literal>, the <varname>child_nodes_disconnect_command</varname>
-			script will be executed if more than two child nodes are disconnected.
-		  </para>
-
-		  <para>
-			Note that any value set in <varname>child_nodes_disconnect_min_count</varname>
-			will be overriden by <varname>child_nodes_connected_min_count</varname>.
-		  </para>
-		  <para>
-			If neither of <varname>child_nodes_connected_min_count</varname> or
-			<varname>child_nodes_disconnect_min_count</varname> are set,
-			the <varname>child_nodes_disconnect_command</varname> script
-			will be executed when no child nodes are connected.
-		  </para>
-
-          <para>
-            A witness node, if in use, will not be counted as a child node unless
-            <varname>child_nodes_connected_include_witness</varname> is set to <literal>true</literal>.
-          </para>
-
-		</listitem>
-	  </varlistentry>
-
-
-	  <varlistentry>
-        <term><varname>child_nodes_connected_include_witness</varname></term>
-        <listitem>
-          <indexterm>
-		    <primary>child_nodes_connected_include_witness</primary>
-		    <secondary>child node disconnection monitoring</secondary>
-		  </indexterm>
-
-		  <para>
-            Whether to count the witness node (if in use) as a child node when
-            determining whether to execute <varname>child_nodes_disconnect_command</varname>.
-          </para>
-          <para>
-            Default to <literal>false</literal>.
-          </para>
-        </listitem>
-      </varlistentry>
-
-	</variablelist>
-
-  </sect2>
-
-  <sect2 id="repmgrd-primary-child-disconnection-events">
-	<title>Standby disconnections monitoring process event notifications</title>
-	<para>
-	  The following <link linkend="event-notifications">event notifications</link> may be generated:
-	</para>
-	<variablelist>
-
-      <varlistentry>
-        <term><varname>child_node_disconnect</varname></term>
-        <listitem>
-          <indexterm>
-		    <primary>child_node_disconnect</primary>
-		    <secondary>event notification</secondary>
-		  </indexterm>
-
-          <para>
-			This event is generated after &repmgrd;
-			detects that a child node is no longer streaming from the primary node.
-          </para>
-		  <para>
-			Example:
-			<programlisting>
-$ repmgr cluster event --event=child_node_disconnect
- Node ID | Name  | Event                 | OK | Timestamp           | Details
----------+-------+-----------------------+----+---------------------+--------------------------------------------
- 1       | node1 | child_node_disconnect | t  | 2019-04-24 12:41:36 | node "node3" (ID: 3) has disconnected</programlisting>
-		  </para>
-        </listitem>
-      </varlistentry>
-
-	  <varlistentry>
-        <term><varname>child_node_reconnect</varname></term>
-        <listitem>
-          <indexterm>
-		    <primary>child_node_reconnect</primary>
-		    <secondary>event notification</secondary>
-		  </indexterm>
-
-          <para>
-			This event is generated after &repmgrd;
-			detects that a child node has resumed streaming from the primary node.
-          </para>
-		  <para>
-			Example:
-			<programlisting>
-$ repmgr cluster event --event=child_node_reconnect
- Node ID | Name  | Event                | OK | Timestamp           | Details
----------+-------+----------------------+----+---------------------+------------------------------------------------------------
- 1       | node1 | child_node_reconnect | t  | 2019-04-24 12:42:19 | node "node3" (ID: 3) has reconnected after 42 seconds</programlisting>
-		  </para>
-        </listitem>
-      </varlistentry>
-
-	  <varlistentry>
-        <term><varname>child_node_new_connect</varname></term>
-        <listitem>
-          <indexterm>
-		    <primary>child_node_new_connect</primary>
-		    <secondary>event notification</secondary>
-		  </indexterm>
-
-          <para>
-			This event is generated after &repmgrd;
-			detects that a new child node has been registered with &repmgr; and has
-			connected to the primary.
-          </para>
-		  <para>
-			Example:
-			<programlisting>
-$ repmgr cluster event --event=child_node_new_connect
- Node ID | Name  | Event                  | OK | Timestamp           | Details
----------+-------+------------------------+----+---------------------+---------------------------------------------
- 1       | node1 | child_node_new_connect | t  | 2019-04-24 12:41:30 | new node "node3" (ID: 3) has connected</programlisting>
-		  </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><varname>child_nodes_disconnect_command</varname></term>
-        <listitem>
-          <indexterm>
-		    <primary>child_nodes_disconnect_command</primary>
-		    <secondary>event notification</secondary>
-		  </indexterm>
-
-          <para>
-			This event is generated after &repmgrd; detects
-			that sufficient child nodes have been disconnected for a sufficient amount
-			of time to trigger execution of the <varname>child_nodes_disconnect_command</varname>.
-          </para>
-		  <para>
-			Example:
-			<programlisting>
-$ repmgr cluster event --event=child_nodes_disconnect_command
- Node ID | Name  | Event                          | OK | Timestamp           | Details
----------+-------+--------------------------------+----+---------------------+--------------------------------------------------------
- 1       | node1 | child_nodes_disconnect_command | t  | 2019-04-24 13:08:17 | "child_nodes_disconnect_command" successfully executed</programlisting>
-		  </para>
-        </listitem>
-      </varlistentry>
-
-	</variablelist>
-
-  </sect2>
-
-
-</sect1>
-
-
-</chapter>

doc/repmgrd-bdr.sgml

@@ -1,6 +1,4 @@
 <chapter id="repmgrd-bdr">
-  <title>BDR failover with repmgrd</title>
-
   <indexterm>
     <primary>repmgrd</primary>
     <secondary>BDR</secondary>
@@ -10,6 +8,7 @@
     <primary>BDR</primary>
   </indexterm>
 
+  <title>BDR failover with repmgrd</title>
   <para>
     &repmgr; 4.x provides support for monitoring a pair of BDR 2.x nodes and taking action in
     case one of the nodes fails.
@@ -25,10 +24,10 @@
   <para>
     In contrast to streaming replication, there's no concept of "promoting" a new
     primary node with BDR. Instead, "failover" involves monitoring both nodes
-    with &repmgrd; and redirecting queries from the failed node to the remaining
+    with <application>repmgrd</application> and redirecting queries from the failed node to the remaining
     active node. This can be done by using an
     <link linkend="event-notifications">event notification</link> script
-    which is called by &repmgrd; to dynamically
+    which is called by <application>repmgrd</application> to dynamically
     reconfigure a proxy server/connection pooler such as <application>PgBouncer</application>.
   </para>
 
@@ -61,7 +60,7 @@
     <para>
       Application database connections *must* be passed through a proxy server/
       connection pooler such as <application>PgBouncer</application>, and it must be possible to dynamically
-      reconfigure that from &repmgrd;. The example demonstrated in this document
+      reconfigure that from <application>repmgrd</application>. The example demonstrated in this document
       will use <application>PgBouncer</application>
     </para>
     <para>
@@ -95,7 +94,7 @@
 
         # Event notification configuration
         event_notifications=bdr_failover
-        event_notification_command='/path/to/bdr-pgbouncer.sh %n %e %s "%c" "%a" >> /tmp/bdr-failover.log 2>&amp;1'
+        event_notification_command='/path/to/bdr-pgbouncer.sh %n %e %s "%c" "%a" >> /tmp/bdr-failover.log 2>&1'
 
         # repmgrd options
         monitor_interval_secs=5
@@ -121,7 +120,7 @@
       <simpara>
         <varname>event_notification_command</varname> is the script which does the actual "heavy lifting"
         of reconfiguring the proxy server/ connection pooler. It is fully
-        user-definable; see section <xref linkend="bdr-event-notification-command"/> for a reference
+        user-definable; see section <xref linkend="bdr-event-notification-command"> for a reference
         implementation.
       </simpara>
     </note>
@@ -159,7 +158,7 @@
     </important>
     <para>
       At this point the meta data for both nodes has been created; executing
-      <xref linkend="repmgr-cluster-show"/> (on either node) should produce output like this:
+      <xref linkend="repmgr-cluster-show"> (on either node) should produce output like this:
       <programlisting>
         $ repmgr -f /etc/repmgr.conf cluster show
         ID | Name  | Role | Status    | Upstream | Location | Connection string
@@ -169,7 +168,7 @@
     </para>
     <para>
       Additionally it's possible to display log of significant events;  executing
-      <xref linkend="repmgr-cluster-event"/> (on either node) should produce output like this:
+      <xref linkend="repmgr-cluster-event"> (on either node) should produce output like this:
       <programlisting>
         $ repmgr -f /etc/repmgr.conf cluster event
         Node ID | Event        | OK | Timestamp           | Details
@@ -297,7 +296,7 @@
         </listitem>
         <listitem>
           <simpara>recreates the <application>PgBouncer</application> configuration file on each
-            node using the information provided by &repmgrd;
+            node using the information provided by <application>repmgrd</application>
             (primarily the <varname>conninfo</varname> string) to configure
             <application>PgBouncer</application></simpara>
         </listitem>
@@ -319,21 +318,21 @@
     <title>Node monitoring and failover</title>
     <para>
       At the intervals specified by <varname>monitor_interval_secs</varname>
-      in <filename>repmgr.conf</filename>, &repmgrd;
+      in <filename>repmgr.conf</filename>, <application>repmgrd</application>
       will ping each node to check if it's available. If a node isn't available,
-      &repmgrd; will enter failover mode and check <varname>reconnect_attempts</varname>
+      <application>repmgrd</application> will enter failover mode and check <varname>reconnect_attempts</varname>
       times at intervals of <varname>reconnect_interval</varname> to confirm the node is definitely unreachable.
       This buffer period is necessary to avoid false positives caused by transient
       network outages.
     </para>
     <para>
-      If the node is still unavailable, &repmgrd; will enter failover mode and execute
+      If the node is still unavailable, <application>repmgrd</application> will enter failover mode and execute
       the script defined in <varname>event_notification_command</varname>; an entry will be logged
-      in the <literal>repmgr.events</literal> table and &repmgrd; will
+      in the <literal>repmgr.events</literal> table and <application>repmgrd</application> will
       (unless otherwise configured) resume monitoring of the node in "degraded" mode until it reappears.
     </para>
     <para>
-      &repmgrd; logfile output during a failover event will look something like this
+      <application>repmgrd</application> logfile output during a failover event will look something like this
       on one node (usually the node which has failed, here <literal>node2</literal>):
       <programlisting>
             ...
@@ -389,8 +388,8 @@
     </para>
     <para>
       This assumes only the PostgreSQL instance on <literal>node2</literal> has failed. In this case the
-      &repmgrd; instance running on <literal>node2</literal> has performed the failover. However if
-      the entire server becomes unavailable, &repmgrd; on <literal>node1</literal> will perform
+      <application>repmgrd</application> instance running on <literal>node2</literal> has performed the failover. However if
+      the entire server becomes unavailable, <application>repmgrd</application> on <literal>node1</literal> will perform
       the failover.
     </para>
   </sect1>
@@ -405,7 +404,7 @@
     </para>
     <para>
       If the failed node comes back up and connects correctly, output similar to this
-      will be visible in the &repmgrd; log:
+      will be visible in the <application>repmgrd</application> log:
       <programlisting>
         [2017-07-27 21:25:30] [DETAIL] monitoring node "node2" (ID: 2) in degraded mode
         [2017-07-27 21:25:46] [INFO] monitoring BDR replication status on node "node2" (ID: 2)
@@ -418,10 +417,10 @@
   <sect1 id="bdr-complete-shutdown" xreflabel="Shutdown of both nodes">
     <title>Shutdown of both nodes</title>
     <para>
-      If both PostgreSQL instances are shut down, &repmgrd; will try and handle the
+      If both PostgreSQL instances are shut down, <application>repmgrd</application> will try and handle the
       situation as gracefully as possible, though with no failover candidates available
       there's not much it can do. Should this case ever occur, we recommend shutting
-      down &repmgrd; on both nodes and restarting it once the PostgreSQL instances
+      down <application>repmgrd</application> on both nodes and restarting it once the PostgreSQL instances
       are running properly.
     </para>
   </sect1>

doc/repmgrd-cascading-replication.sgml

@@ -0,0 +1,22 @@
+<chapter id="repmgrd-cascading-replication">
+ <indexterm>
+   <primary>repmgrd</primary>
+   <secondary>cascading replication</secondary>
+ </indexterm>
+
+ <title>repmgrd and cascading replication</title>
+ <para>
+  Cascading replication - where a standby can connect to an upstream node and not
+  the primary server itself - was introduced in PostgreSQL 9.2. &repmgr; and
+  <application>repmgrd</application> support cascading replication by keeping track of the relationship
+  between standby servers - each node record is stored with the node id of its
+  upstream ("parent") server (except of course the primary server).
+ </para>
+ <para>
+  In a failover situation where the primary node fails and a top-level standby
+  is promoted, a standby connected to another standby will not be affected
+  and continue working as normal (even if the upstream standby it's connected
+  to becomes the primary node). If however the node's direct upstream fails,
+  the "cascaded standby" will attempt to reconnect to that node's parent.
+ </para>
+</chapter>

doc/repmgrd-configuration.sgml

@@ -0,0 +1,554 @@
+<chapter id="repmgrd-configuration">
+
+  <indexterm>
+    <primary>repmgrd</primary>
+    <secondary>configuration</secondary>
+  </indexterm>
+
+  <title>repmgrd configuration</title>
+
+  <para>
+    <application>repmgrd</application> is a daemon which runs on each PostgreSQL node,
+    monitoring the local node, and (unless it's the primary node) the upstream server
+    (the primary server or with cascading replication, another standby) which it's
+    connected to.
+  </para>
+  <para>
+    <application>repmgrd</application> can be configured to provide failover
+    capability in case the primary upstream node becomes unreachable, and/or
+    provide monitoring data to the &repmgr; metadatabase.
+  </para>
+
+  <sect1 id="repmgrd-basic-configuration">
+    <title>repmgrd basic configuration</title>
+
+    <para>
+      To use <application>repmgrd</application>, its associated function library <emphasis>must</emphasis> be
+      included via <filename>postgresql.conf</filename> with:
+
+      <programlisting>
+        shared_preload_libraries = 'repmgr'</programlisting>
+    </para>
+    <para>
+      Changing this setting requires a restart of PostgreSQL; for more details see
+      the <ulink url="https://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-SHARED-PRELOAD-LIBRARIES">PostgreSQL documentation</ulink>.
+    </para>
+
+
+    <sect2 id="repmgrd-automatic-failover-configuration">
+      <title>automatic failover configuration</title>
+      <para>
+        If using automatic failover, the following <application>repmgrd</application> options *must* be set in
+        <filename>repmgr.conf</filename> :
+        <programlisting>
+          failover=automatic
+          promote_command='/usr/bin/repmgr standby promote -f /etc/repmgr.conf --log-to-file'
+          follow_command='/usr/bin/repmgr standby follow -f /etc/repmgr.conf --log-to-file --upstream-node-id=%n'</programlisting>
+      </para>
+      <para>
+        Adjust file paths as appropriate; alway specify the full path to the &repmgr; binary.
+      </para>
+
+      <note>
+        <para>
+          &repmgr; will not apply <option>pg_bindir</option> when executing <option>promote_command</option>
+          or <option>follow_command</option>; these can be user-defined scripts so must always be
+          specified with the full path.
+        </para>
+      </note>
+
+      <para>
+        Note that the <literal>--log-to-file</literal> option will cause
+        output generated by the &repmgr; command, when executed by <application>repmgrd</application>,
+        to be logged to the same destination configured to receive log output for <application>repmgrd</application>.
+        See <filename><ulink url="https://raw.githubusercontent.com/2ndQuadrant/repmgr/master/repmgr.conf.sample">repmgr.conf.sample</ulink></filename>
+        for further <application>repmgrd</application>-specific settings.
+      </para>
+      <para>
+        When <varname>failover</varname> is set to <literal>automatic</literal>, upon detecting failure
+        of the current  primary, <application>repmgrd</application> will execute one of:
+      </para>
+      <itemizedlist spacing="compact" mark="bullet">
+        <listitem>
+          <simpara>
+            <varname>promote_command</varname> (if the current server is to become the new primary)
+          </simpara>
+        </listitem>
+        <listitem>
+          <simpara>
+            <varname>follow_command</varname> (if the current server needs to follow another server which has
+            become the new primary)
+          </simpara>
+        </listitem>
+      </itemizedlist>
+      <note>
+        <para>
+          These commands can be any valid shell script which results in one of these
+          two actions happening, but if &repmgr;'s <command>standby follow</command> or
+          <command>standby promote</command>
+          commands are not executed (either directly as shown here, or from a script which
+          performs other actions), the &repmgr; metadata will not be updated and
+          &repmgr; will no longer function reliably.
+        </para>
+      </note>
+
+      <para>
+        The <varname>follow_command</varname> should provide the <literal>--upstream-node-id=%n</literal>
+        option to <command>repmgr standby follow</command>; the <literal>%n</literal> will be replaced by
+        <application>repmgrd</application> with the ID of the new primary node. If this is not provided, &repmgr;
+        will attempt to determine the new primary by itself, but if the
+        original primary comes back online after the new primary is promoted, there is a risk that
+        <command>repmgr standby follow</command> will result in the node continuing to follow
+        the original primary.
+      </para>
+    </sect2>
+
+    <sect2 id="repmgrd-service-configuration">
+      <indexterm>
+        <primary>repmgrd</primary>
+        <secondary>PostgreSQL service configuration</secondary>
+      </indexterm>
+      <title>PostgreSQL service configuration</title>
+      <para>
+        If using automatic failover, currently <application>repmgrd</application> will need to execute
+        <link linkend="repmgr-standby-follow"><command>repmgr standby follow</command></link>
+        to restart PostgreSQL on standbys to have them follow a new primary.
+      </para>
+      <para>
+        To ensure this happens smoothly, it's essential to provide the appropriate system/service restart
+        command appropriate to your operating system via <varname>service_restart_command</varname>
+        in <filename>repmgr.conf</filename>. If you don't do this, <application>repmgrd</application>
+        will default to using <command>pg_ctl</command>, which can result in unexpected problems,
+        particularly on <application>systemd</application>-based systems.
+      </para>
+      <para>
+        For more details, see <xref linkend="configuration-file-service-commands">.
+      </para>
+    </sect2>
+
+    <sect2 id="repmgrd-monitoring-configuration" xreflabel="repmgrd monitoring configuration">
+      <indexterm>
+        <primary>repmgrd</primary>
+        <secondary>monitoring configuration</secondary>
+      </indexterm>
+      <title>Monitoring configuration</title>
+      <para>
+        To enable monitoring, set:
+        <programlisting>
+          monitoring_history=yes</programlisting>
+        in <filename>repmgr.conf</filename>.
+      </para>
+      <para>
+        The default monitoring interval is 2 seconds; this value can be explicitly set using:
+        <programlisting>
+          monitor_interval_secs=&lt;seconds&gt;</programlisting>
+        in <filename>repmgr.conf</filename>.
+      </para>
+      <para>
+        For more details on monitoring, see <xref linkend="repmgrd-monitoring">.
+      </para>
+    </sect2>
+
+    <sect2 id="repmgrd-reloading-configuration"xreflabel="reloading repmgrd configuration">
+      <indexterm>
+        <primary>repmgrd</primary>
+        <secondary>applying configuration changes</secondary>
+      </indexterm>
+      <title>Applying configuration changes to repmgrd</title>
+      <para>
+        To apply configuration file changes to a running <application>repmgrd</application>
+        daemon, execute the operating system's <application>repmgrd</application> service reload command
+        (see <xref linkend="appendix-packages"> for examples),
+          or for instances  which were manually started, execute <command>kill -HUP</command>, e.g.
+          <command>kill -HUP `cat /tmp/repmgrd.pid`</command>.
+      </para>
+      <tip>
+        <para>
+          Check the <application>repmgrd</application> log to see what changes were
+          applied, or if any issues were encountered when reloading the configuration.
+        </para>
+      </tip>
+      <para>
+        Note that only the following subset of configuration file parameters can be changed on a
+        running <application>repmgrd</application> daemon:
+      </para>
+      <itemizedlist spacing="compact" mark="bullet">
+
+        <listitem>
+          <simpara>
+            <varname>async_query_timeout</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>bdr_local_monitoring_only</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>bdr_recovery_timeout</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>conninfo</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>degraded_monitoring_timeout</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>event_notification_command</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>event_notifications</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>failover</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>follow_command</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>log_facility</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>log_file</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>log_level</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>log_status_interval</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>monitor_interval_secs</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>monitoring_history</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>primary_notification_timeout</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>promote_command</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>reconnect_attempts</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>reconnect_interval</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>repmgrd_standby_startup_timeout</varname>
+          </simpara>
+        </listitem>
+
+      </itemizedlist>
+
+      <para>
+        The following set of configuration file parameters must be updated via
+        <command><link linkend="repmgr-standby-register">repmgr standby register --force</link></command>,
+        as they require changes to the <literal>repmgr.nodes</literal> table so they are visible to
+        all nodes in the replication cluster:
+      </para>
+      <itemizedlist spacing="compact" mark="bullet">
+
+        <listitem>
+          <simpara>
+            <varname>node_id</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>node_name</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>data_directory</varname>
+          </simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            <varname>location</varname>
+          </simpara>
+        </listitem>
+
+
+        <listitem>
+          <simpara>
+            <varname>priority</varname>
+          </simpara>
+        </listitem>
+
+      </itemizedlist>
+
+      <note>
+        <para>
+          After executing <command><link linkend="repmgr-standby-register">repmgr standby register --force</link></command>,
+          <application>repmgrd</application> <emphasis>must</emphasis> be restarted for the changes to take effect.
+        </para>
+      </note>
+
+    </sect2>
+
+  </sect1>
+
+  <sect1 id="repmgrd-daemon">
+    <indexterm>
+      <primary>repmgrd</primary>
+      <secondary>starting and stopping</secondary>
+    </indexterm>
+    <title>repmgrd daemon</title>
+    <para>
+      If installed from a package, the <application>repmgrd</application> can be started
+      via the operating system's service command, e.g. in <application>systemd</application>
+      using <command>systemctl</command>.
+    </para>
+    <para>
+      See appendix <xref linkend="appendix-packages"> for details of service commands
+      for different distributions.
+    </para>
+    <para>
+      <application>repmgrd</application> can be started manually like this:
+      <programlisting>
+        repmgrd -f /etc/repmgr.conf --pid-file /tmp/repmgrd.pid</programlisting>
+      and stopped with <command>kill `cat /tmp/repmgrd.pid`</command>. Adjust paths as appropriate.
+    </para>
+
+    <sect2 id="repmgrd-pid-file" xreflabel="repmgrd's PID file">
+      <indexterm>
+        <primary>repmgrd</primary>
+        <secondary>PID file</secondary>
+      </indexterm>
+      <indexterm>
+        <primary>PID file</primary>
+        <secondary>repmgrd</secondary>
+      </indexterm>
+      <title>repmgrd's PID file</title>
+      <para>
+        <application>repmgrd</application> will generate a PID file by default.
+      </para>
+      <note>
+        <simpara>
+          This is a behaviour change from previous versions (earlier than 4.1), where
+          the PID file had to be explicitly specified with the command line
+          parameter <option> --pid-file</option>.
+        </simpara>
+      </note>
+      <para>
+        The PID file can be specified in <filename>repmgr.conf</filename> with the configuration
+        parameter <varname>repmgrd_pid_file</varname>.
+      </para>
+      <para>
+        It can also be specified on the command line (as in previous versions) with
+        the command line parameter <option>--pid-file</option>. Note this will override
+        any value set in <filename>repmgr.conf</filename> with <varname>repmgrd_pid_file</varname>.
+        <option>--pid-file</option> may be deprecated in future releases.
+      </para>
+      <para>
+        If a PID file location was specified by the package maintainer, <application>repmgrd</application>
+        will use that. This only applies if &repmgr; was installed from a package and the package
+        maintainer has specified the PID file location.
+      </para>
+      <para>
+        If none of the above apply, <application>repmgrd</application> will create a PID file
+        in the operating system's temporary directory (das etermined by the environment variable
+        <varname>TMPDIR</varname>, or if that is not set, will use <filename>/tmp</filename>).
+      </para>
+      <para>
+        To prevent a PID file being generated at all, provide the command line option
+        <option>--no-pid-file</option>.
+      </para>
+      <para>
+        To see which PID file <application>repmgrd</application> would use, execute <application>repmgrd</application>
+        with the option <option>--show-pid-file</option>. <application>repmgrd</application>
+        will not start if this option is provided. Note that the value shown is the
+        file  <application>repmgrd</application> would use next time it starts, and is
+        not necessarily the PID file currently in use.
+      </para>
+    </sect2>
+
+    <sect2 id="repmgrd-configuration-debian-ubuntu">
+      <indexterm>
+        <primary>repmgrd</primary>
+        <secondary>Debian/Ubuntu and daemon configuration</secondary>
+      </indexterm>
+      <indexterm>
+        <primary>Debian/Ubuntu</primary>
+        <secondary>repmgrd daemon configuration</secondary>
+      </indexterm>
+
+      <title>repmgrd daemon configuration on Debian/Ubuntu</title>
+
+      <para>
+        If &repmgr; was installed from Debian/Ubuntu packages, additional configuration
+        is required before <application>repmgrd</application> is started as a daemon.
+      </para>
+      <para>
+        This is done via the file <filename>/etc/default/repmgrd</filename>, which by default
+        looks like this:
+        <programlisting>
+# default settings for repmgrd. This file is source by /bin/sh from
+# /etc/init.d/repmgrd
+
+# disable repmgrd by default so it won't get started upon installation
+# valid values: yes/no
+REPMGRD_ENABLED=no
+
+# configuration file (required)
+#REPMGRD_CONF="/path/to/repmgr.conf"
+
+# additional options
+REPMGRD_OPTS="--daemonize=false"
+
+# user to run repmgrd as
+#REPMGRD_USER=postgres
+
+# repmgrd binary
+#REPMGRD_BIN=/usr/bin/repmgrd
+
+# pid file
+#REPMGRD_PIDFILE=/var/run/repmgrd.pid</programlisting>
+      </para>
+      <para>
+        Set <varname>REPMGRD_ENABLED</varname> to <literal>yes</literal>, and <varname>REPMGRD_CONF</varname>
+        to the <filename>repmgr.conf</filename> file you are using.
+      </para>
+      <tip>
+        <para>
+          See <xref linkend="packages-debian-ubuntu"> for details of the Debian/Ubuntu packages and
+          typical file locations (including <filename>repmgr.conf</filename>).
+        </para>
+      </tip>
+      <para>
+        From <application>repmgrd</application> 4.1, ensure <varname>REPMGRD_OPTS</varname> includes
+        <option>--daemonize=false</option>, as daemonization is handled by the service command.
+      </para>
+      <para>
+        If using <application>systemd</application>, you may need to execute <command>systemctl daemon-reload</command>.
+        Also, if you attempted to start <application>repmgrd</application> using <command>systemctl start repmgrd</command>,
+        you'll need to execute <command>systemctl stop repmgrd</command>. Because that's how <application>systemd</application>
+        rolls.
+      </para>
+
+    </sect2>
+  </sect1>
+
+  <sect1 id="repmgrd-connection-settings">
+    <title>repmgrd connection settings</title>
+ <para>
+  In addition to the &repmgr; configuration settings, parameters in the
+  <varname>conninfo</varname> string influence how &repmgr; makes a network connection to
+  PostgreSQL. In particular, if another server in the replication cluster
+  is unreachable at network level, system network settings will influence
+  the length of time it takes to determine that the connection is not possible.
+ </para>
+ <para>
+  In particular explicitly setting a parameter for <literal>connect_timeout</literal>
+  should be considered; the effective minimum value of <literal>2</literal>
+  (seconds) will ensure that a connection failure at network level is reported
+  as soon as possible, otherwise depending on the system settings (e.g.
+  <varname>tcp_syn_retries</varname> in Linux) a delay of a minute or more
+  is possible.
+ </para>
+ <para>
+  For further details on <varname>conninfo</varname> network connection
+  parameters, see the
+  <ulink url="https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-PARAMKEYWORDS">PostgreSQL documentation</ulink>.
+ </para>
+ </sect1>
+
+
+
+ <sect1 id="repmgrd-log-rotation">
+   <indexterm>
+     <primary>log rotation</primary>
+     <secondary>repmgrd</secondary>
+   </indexterm>
+
+   <indexterm>
+     <primary>repmgrd</primary>
+     <secondary>log rotation</secondary>
+   </indexterm>
+
+  <title>repmgrd log rotation</title>
+  <para>
+   To ensure the current <application>repmgrd</application> logfile
+   (specified in <filename>repmgr.conf</filename> with the parameter
+   <option>log_file</option>) does not grow indefinitely, configure your
+   system's <command>logrotate</command> to regularly rotate it.
+  </para>
+  <para>
+   Sample configuration to rotate logfiles weekly with retention for
+   up to 52 weeks and rotation forced if a file grows beyond 100Mb:
+   <programlisting>
+    /var/log/repmgr/repmgrd.log {
+        missingok
+        compress
+        rotate 52
+        maxsize 100M
+        weekly
+        create 0600 postgres postgres
+        postrotate
+            /usr/bin/killall -HUP repmgrd
+        endscript
+    }</programlisting>
+  </para>
+
+ </sect1>
+</chapter>

doc/repmgrd-degraded-monitoring.sgml

@@ -0,0 +1,83 @@
+<chapter id="repmgrd-degraded-monitoring" xreflabel="repmgrd degraded monitoring">
+ <indexterm>
+   <primary>repmgrd</primary>
+   <secondary>degraded monitoring</secondary>
+ </indexterm>
+
+ <title>"degraded monitoring" mode</title>
+ <para>
+  In certain circumstances, <application>repmgrd</application> is not able to fulfill its primary mission
+  of monitoring the node's upstream server. In these cases it enters &quot;degraded monitoring&quot;
+  mode, where <application>repmgrd</application> remains active but is waiting for the situation
+  to be resolved.
+ </para>
+ <para>
+  Situations where this happens are:
+  <itemizedlist spacing="compact" mark="bullet">
+
+   <listitem>
+    <simpara>a failover situation has occurred, no nodes in the primary node's location are visible</simpara>
+   </listitem>
+
+   <listitem>
+    <simpara>a failover situation has occurred, but no promotion candidate is available</simpara>
+   </listitem>
+
+   <listitem>
+    <simpara>a failover situation has occurred, but the promotion candidate could not be promoted</simpara>
+   </listitem>
+
+   <listitem>
+    <simpara>a failover situation has occurred, but the node was unable to follow the new primary</simpara>
+   </listitem>
+
+   <listitem>
+    <simpara>a failover situation has occurred, but no primary has become available</simpara>
+   </listitem>
+
+   <listitem>
+    <simpara>a failover situation has occurred, but automatic failover is not enabled for the node</simpara>
+   </listitem>
+
+   <listitem>
+    <simpara>repmgrd is monitoring the primary node, but it is not available (and no other node has been promoted as primary)</simpara>
+   </listitem>
+  </itemizedlist>
+ </para>
+
+ <para>
+  Example output in a situation where there is only one standby with <literal>failover=manual</literal>,
+  and the primary node is unavailable (but is later restarted):
+  <programlisting>
+    [2017-08-29 10:59:19] [INFO] node "node2" (node ID: 2) monitoring upstream node "node1" (node ID: 1) in normal state (automatic failover disabled)
+    [2017-08-29 10:59:33] [WARNING] unable to connect to upstream node "node1" (node ID: 1)
+    [2017-08-29 10:59:33] [INFO] checking state of node 1, 1 of 5 attempts
+    [2017-08-29 10:59:33] [INFO] sleeping 1 seconds until next reconnection attempt
+    (...)
+    [2017-08-29 10:59:37] [INFO] checking state of node 1, 5 of 5 attempts
+    [2017-08-29 10:59:37] [WARNING] unable to reconnect to node 1 after 5 attempts
+    [2017-08-29 10:59:37] [NOTICE] this node is not configured for automatic failover so will not be considered as promotion candidate
+    [2017-08-29 10:59:37] [NOTICE] no other nodes are available as promotion candidate
+    [2017-08-29 10:59:37] [HINT] use "repmgr standby promote" to manually promote this node
+    [2017-08-29 10:59:37] [INFO] node "node2" (node ID: 2) monitoring upstream node "node1" (node ID: 1) in degraded state (automatic failover disabled)
+    [2017-08-29 10:59:53] [INFO] node "node2" (node ID: 2) monitoring upstream node "node1" (node ID: 1) in degraded state (automatic failover disabled)
+    [2017-08-29 11:00:45] [NOTICE] reconnected to upstream node 1 after 68 seconds, resuming monitoring
+    [2017-08-29 11:00:57] [INFO] node "node2" (node ID: 2) monitoring upstream node "node1" (node ID: 1) in normal state (automatic failover disabled)</programlisting>
+
+ </para>
+ <para>
+  By default, <literal>repmgrd</literal> will continue in degraded monitoring mode indefinitely.
+  However a timeout (in seconds) can be set with <varname>degraded_monitoring_timeout</varname>,
+  after which <application>repmgrd</application> will terminate.
+ </para>
+
+ <note>
+   <para>
+     If <application>repmgrd</application> is monitoring a primary mode which has been stopped
+     and manually restarted as a standby attached to a new primary, it will automatically detect
+     the status change and update the node record to reflect the node's new status
+     as an active standby. It will then resume monitoring the node as a standby.
+   </para>
+ </note>
+
+</chapter>

doc/repmgrd-demonstration.sgml

@@ -0,0 +1,96 @@
+<chapter id="repmgrd-demonstration">
+ <title>repmgrd demonstration</title>
+ <para>
+  To demonstrate automatic failover, set up a 3-node replication cluster (one primary
+  and two standbys streaming directly from the primary) so that the cluster looks
+  something like this:
+  <programlisting>
+    $ repmgr -f /etc/repmgr.conf cluster show
+     ID | Name  | Role    | Status    | Upstream | Location | Connection string
+    ----+-------+---------+-----------+----------+----------+--------------------------------------
+     1  | node1 | primary | * running |          | default  | host=node1 dbname=repmgr user=repmgr
+     2  | node2 | standby |   running | node1    | default  | host=node2 dbname=repmgr user=repmgr
+     3  | node3 | standby |   running | node1    | default  | host=node3 dbname=repmgr user=repmgr</programlisting>
+ </para>
+ <para>
+  Start <application>repmgrd</application> on each standby and verify that it's running by examining the
+  log output, which at log level <literal>INFO</literal> will look like this:
+  <programlisting>
+    [2017-08-24 17:31:00] [NOTICE] using configuration file "/etc/repmgr.conf"
+    [2017-08-24 17:31:00] [INFO] connecting to database "host=node2 dbname=repmgr user=repmgr"
+    [2017-08-24 17:31:00] [NOTICE] starting monitoring of node <literal>node2</literal> (ID: 2)
+    [2017-08-24 17:31:00] [INFO] monitoring connection to upstream node "node1" (node ID: 1)</programlisting>
+ </para>
+ <para>
+  Each <application>repmgrd</application> should also have recorded its successful startup as an event:
+  <programlisting>
+    $ repmgr -f /etc/repmgr.conf cluster event --event=repmgrd_start
+     Node ID | Name  | Event         | OK | Timestamp           | Details
+    ---------+-------+---------------+----+---------------------+-------------------------------------------------------------
+     3       | node3 | repmgrd_start | t  | 2017-08-24 17:35:54 | monitoring connection to upstream node "node1" (node ID: 1)
+     2       | node2 | repmgrd_start | t  | 2017-08-24 17:35:50 | monitoring connection to upstream node "node1" (node ID: 1)
+     1       | node1 | repmgrd_start | t  | 2017-08-24 17:35:46 | monitoring cluster primary "node1" (node ID: 1)  </programlisting>
+ </para>
+ <para>
+  Now stop the current primary server with e.g.:
+  <programlisting>
+    pg_ctl -D /var/lib/postgresql/data -m immediate stop</programlisting>
+ </para>
+ <para>
+  This will force the primary to shut down straight away, aborting all processes
+  and transactions.  This will cause a flurry of activity in the <application>repmgrd</application> log
+  files as each <application>repmgrd</application> detects the failure of the primary and a failover
+  decision is made. This is an extract from the log of a standby server (<literal>node2</literal>)
+  which has promoted to new primary after failure of the original primary (<literal>node1</literal>).
+  <programlisting>
+    [2017-08-24 23:32:01] [INFO] node "node2" (node ID: 2) monitoring upstream node "node1" (node ID: 1) in normal state
+    [2017-08-24 23:32:08] [WARNING] unable to connect to upstream node "node1" (node ID: 1)
+    [2017-08-24 23:32:08] [INFO] checking state of node 1, 1 of 5 attempts
+    [2017-08-24 23:32:08] [INFO] sleeping 1 seconds until next reconnection attempt
+    [2017-08-24 23:32:09] [INFO] checking state of node 1, 2 of 5 attempts
+    [2017-08-24 23:32:09] [INFO] sleeping 1 seconds until next reconnection attempt
+    [2017-08-24 23:32:10] [INFO] checking state of node 1, 3 of 5 attempts
+    [2017-08-24 23:32:10] [INFO] sleeping 1 seconds until next reconnection attempt
+    [2017-08-24 23:32:11] [INFO] checking state of node 1, 4 of 5 attempts
+    [2017-08-24 23:32:11] [INFO] sleeping 1 seconds until next reconnection attempt
+    [2017-08-24 23:32:12] [INFO] checking state of node 1, 5 of 5 attempts
+    [2017-08-24 23:32:12] [WARNING] unable to reconnect to node 1 after 5 attempts
+    INFO:  setting voting term to 1
+    INFO:  node 2 is candidate
+    INFO:  node 3 has received request from node 2 for electoral term 1 (our term: 0)
+    [2017-08-24 23:32:12] [NOTICE] this node is the winner, will now promote self and inform other nodes
+    INFO: connecting to standby database
+    NOTICE: promoting standby
+    DETAIL: promoting server using 'pg_ctl -l /var/log/postgres/startup.log -w -D '/var/lib/pgsql/data' promote'
+    INFO: reconnecting to promoted server
+    NOTICE: STANDBY PROMOTE successful
+    DETAIL: node 2 was successfully promoted to primary
+    INFO:  node 3 received notification to follow node 2
+    [2017-08-24 23:32:13] [INFO] switching to primary monitoring mode</programlisting>
+ </para>
+ <para>
+  The cluster status will now look like this, with the original primary (<literal>node1</literal>)
+  marked as inactive, and standby <literal>node3</literal> now following the new primary
+  (<literal>node2</literal>):
+  <programlisting>
+    $ repmgr -f /etc/repmgr.conf cluster show
+     ID | Name  | Role    | Status    | Upstream | Location | Connection string
+    ----+-------+---------+-----------+----------+----------+----------------------------------------------------
+     1  | node1 | primary | - failed  |          | default  | host=node1 dbname=repmgr user=repmgr
+     2  | node2 | primary | * running |          | default  | host=node2 dbname=repmgr user=repmgr
+     3  | node3 | standby |   running | node2    | default  | host=node3 dbname=repmgr user=repmgr</programlisting>
+
+ </para>
+ <para>
+  <command>repmgr cluster event</command> will display a summary of what happened to each server
+  during the failover:
+  <programlisting>
+    $ repmgr -f /etc/repmgr.conf cluster event
+     Node ID | Name  | Event                    | OK | Timestamp           | Details
+    ---------+-------+--------------------------+----+---------------------+-----------------------------------------------------------------------------------
+     3       | node3 | repmgrd_failover_follow  | t  | 2017-08-24 23:32:16 | node 3 now following new upstream node 2
+     3       | node3 | standby_follow           | t  | 2017-08-24 23:32:16 | node 3 is now attached to node 2
+     2       | node2 | repmgrd_failover_promote | t  | 2017-08-24 23:32:13 | node 2 promoted to primary; old primary 1 marked as failed
+     2       | node2 | standby_promote          | t  | 2017-08-24 23:32:13 | node 2 was successfully promoted to primary</programlisting>
+ </para>
+</chapter>

doc/repmgrd-monitoring.sgml

@@ -0,0 +1,80 @@
+<chapter id="repmgrd-monitoring" xreflabel="Monitoring with repmgrd">
+ <indexterm>
+   <primary>repmgrd</primary>
+   <secondary>monitoring</secondary>
+ </indexterm>
+ <indexterm>
+   <primary>monitoring</primary>
+   <secondary>with repmgrd</secondary>
+ </indexterm>
+
+ <title>Monitoring with repmgrd</title>
+ <para>
+   When <application>repmgrd</application> is running with the option <literal>monitoring_history=true</literal>,
+  it will constantly write standby node status information to the
+  <varname>monitoring_history</varname> table, providing a near-real time
+  overview of replication status on all nodes
+  in the cluster.
+ </para>
+ <para>
+   The view <literal>replication_status</literal> shows the most recent state
+   for each node, e.g.:
+  <programlisting>
+    repmgr=# select * from repmgr.replication_status;
+    -[ RECORD 1 ]-------------+------------------------------
+    primary_node_id           | 1
+    standby_node_id           | 2
+    standby_name              | node2
+    node_type                 | standby
+    active                    | t
+    last_monitor_time         | 2017-08-24 16:28:41.260478+09
+    last_wal_primary_location | 0/6D57A00
+    last_wal_standby_location | 0/5000000
+    replication_lag           | 29 MB
+    replication_time_lag      | 00:00:11.736163
+    apply_lag                 | 15 MB
+    communication_time_lag    | 00:00:01.365643</programlisting>
+ </para>
+ <para>
+  The interval in which monitoring history is written is controlled by the
+  configuration parameter <varname>monitor_interval_secs</varname>;
+  default is 2.
+ </para>
+ <para>
+  As this can generate a large amount of monitoring data in the table
+  <literal>repmgr.monitoring_history</literal>. it's advisable to regularly
+  purge historical data using the <xref linkend="repmgr-cluster-cleanup">
+  command; use the <literal>-k/--keep-history</literal> option to
+  specify how many day's worth of data should be retained.
+ </para>
+ <para>
+  It's possible to use <application>repmgrd</application> to run in monitoring
+  mode only (without automatic failover capability) for some or all
+  nodes by setting <literal>failover=manual</literal> in the node's
+  <filename>repmgr.conf</filename> file. In the event of the node's upstream failing,
+  no failover action will be taken and the node will require manual intervention to
+  be reattached to replication. If this occurs, an
+  <link linkend="event-notifications">event notification</link>
+  <varname>standby_disconnect_manual</varname> will be created.
+ </para>
+ <para>
+  Note that when a standby node is not streaming directly from its upstream
+  node, e.g. recovering WAL from an archive, <varname>apply_lag</varname> will always appear as
+  <literal>0 bytes</literal>.
+ </para>
+ <tip>
+  <para>
+   If monitoring history is enabled, the contents of the <literal>repmgr.monitoring_history</literal>
+   table will be replicated to attached standbys. This means there will be a small but
+   constant stream of replication activity which may not be desirable. To prevent
+   this, convert the table to an <literal>UNLOGGED</literal> one with:
+   <programlisting>
+     ALTER TABLE repmgr.monitoring_history SET UNLOGGED;</programlisting>
+  </para>
+  <para>
+   This will however mean that monitoring history will not be available on
+   another node following a failover, and the view <literal>repmgr.replication_status</literal>
+   will not work on standbys.
+  </para>
+ </tip>
+</chapter>

doc/repmgrd-network-split.sgml

@@ -0,0 +1,48 @@
+<chapter id="repmgrd-network-split" xreflabel="Handling network splits with repmgrd">
+ <indexterm>
+   <primary>repmgrd</primary>
+   <secondary>network splits</secondary>
+ </indexterm>
+
+ <title>Handling network splits with repmgrd</title>
+ <para>
+  A common pattern for replication cluster setups is to spread servers over
+  more than one datacentre. This can provide benefits such as geographically-
+  distributed read replicas and DR (disaster recovery capability). However
+  this also means there is a risk of disconnection at network level between
+  datacentre locations, which would result in a split-brain scenario if
+  servers in a secondary data centre were no longer able to see the primary
+  in the main data centre and promoted a standby among themselves.
+ </para>
+ <para>
+  &repmgr; enables provision of &quot;<xref linkend="witness-server">&quot; to
+  artificially create a quorum of servers in a particular location, ensuring
+  that nodes in another location will not elect a new primary if they
+  are unable to see the majority of nodes. However this approach does not
+  scale well, particularly with more complex replication setups, e.g.
+  where the majority of nodes are located outside of the primary datacentre.
+  It also means the <literal>witness</literal> node needs to be managed as an
+  extra PostgreSQL instance outside of the main replication cluster, which
+  adds administrative and programming complexity.
+ </para>
+ <para>
+  <literal>repmgr4</literal> introduces the concept of <literal>location</literal>:
+  each node is associated with an arbitrary location string (default is
+  <literal>default</literal>); this is set in <filename>repmgr.conf</filename>, e.g.:
+  <programlisting>
+    node_id=1
+    node_name=node1
+    conninfo='host=node1 user=repmgr dbname=repmgr connect_timeout=2'
+    data_directory='/var/lib/postgresql/data'
+    location='dc1'</programlisting>
+ </para>
+ <para>
+  In a failover situation, <application>repmgrd</application> will check if any servers in the
+  same location as the current primary node are visible.  If not, <application>repmgrd</application>
+  will assume a network interruption and not promote any node in any
+  other location (it will however enter <link linkend="repmgrd-degraded-monitoring">degraded monitoring</link>
+  mode until a primary becomes visible).
+ </para>
+
+</chapter>
+

doc/repmgrd-operation.xml

@@ -1,388 +0,0 @@
-<chapter id="repmgrd-operation" xreflabel="repmgrd operation">
-  <title>repmgrd operation</title>
-
-  <indexterm>
-    <primary>repmgrd</primary>
-    <secondary>operation</secondary>
-  </indexterm>
-
-  <sect1 id="repmgrd-pausing">
-
-    <title>Pausing repmgrd</title>
-
-  <indexterm>
-    <primary>repmgrd</primary>
-    <secondary>pausing</secondary>
-  </indexterm>
-
-  <indexterm>
-    <primary>pausing repmgrd</primary>
-  </indexterm>
-
-
-  <para>
-    In normal operation, &repmgrd; monitors the state of the
-    PostgreSQL node it is running on, and will take appropriate action if problems
-    are detected, e.g. (if so configured) promote the node to primary, if the existing
-    primary has been determined as failed.
-  </para>
-
-  <para>
-    However, &repmgrd; is unable to distinguish between
-    planned outages (such as performing a <link linkend="performing-switchover">switchover</link>
-    or installing PostgreSQL maintenance released), and an actual server outage. In versions prior to
-    &repmgr; 4.2 it was necessary to stop &repmgrd; on all nodes (or at least
-    on all nodes where &repmgrd; is
-    <link linkend="repmgrd-automatic-failover">configured for automatic failover</link>)
-    to prevent &repmgrd; from making unintentional changes to the
-    replication cluster.
-  </para>
-
-  <para>
-    From <link linkend="release-4.2">&repmgr; 4.2</link>, &repmgrd;
-    can now be &quot;paused&quot;, i.e. instructed not to take any action such as performing a failover.
-    This can be done from any node in the cluster, removing the need to stop/restart
-    each &repmgrd; individually.
-  </para>
-
-  <note>
-    <para>
-      For major PostgreSQL upgrades, e.g. from PostgreSQL 10 to PostgreSQL 11,
-      &repmgrd; should be shut down completely and only started up
-      once the &repmgr; packages for the new PostgreSQL major version have been installed.
-    </para>
-  </note>
-
-  <sect2 id="repmgrd-pausing-prerequisites">
-    <title>Prerequisites for pausing &repmgrd;</title>
-    <para>
-      In order to be able to pause/unpause &repmgrd;, following
-      prerequisites must be met:
-      <itemizedlist spacing="compact" mark="bullet">
-
-        <listitem>
-          <simpara><link linkend="release-4.2">&repmgr; 4.2</link> or later must be installed on all nodes.</simpara>
-        </listitem>
-
-        <listitem>
-          <simpara>The same major &repmgr; version (e.g. 4.2) must be installed on all nodes (and preferably the same minor version).</simpara>
-        </listitem>
-
-        <listitem>
-          <simpara>
-            PostgreSQL on all nodes must be accessible from the node where the
-            <literal>pause</literal>/<literal>unpause</literal> operation is executed, using the
-            <varname>conninfo</varname> string shown by <link linkend="repmgr-cluster-show"><command>repmgr cluster show</command></link>.
-          </simpara>
-        </listitem>
-      </itemizedlist>
-    </para>
-    <note>
-      <para>
-        These conditions are required for normal &repmgr; operation in any case.
-      </para>
-    </note>
-
-  </sect2>
-
-  <sect2 id="repmgrd-pausing-execution">
-    <title>Pausing/unpausing &repmgrd;</title>
-    <para>
-      To pause &repmgrd;, execute <link linkend="repmgr-daemon-pause"><command>repmgr daemon pause</command></link>, e.g.:
-   <programlisting>
-$ repmgr -f /etc/repmgr.conf daemon pause
-NOTICE: node 1 (node1) paused
-NOTICE: node 2 (node2) paused
-NOTICE: node 3 (node3) paused</programlisting>
-    </para>
-    <para>
-      The state of &repmgrd; on each node can be checked with
-      <link linkend="repmgr-daemon-status"><command>repmgr daemon status</command></link>, e.g.:
-    <programlisting>$ repmgr -f /etc/repmgr.conf daemon status
- ID | Name  | Role    | Status  | repmgrd | PID  | Paused?
-----+-------+---------+---------+---------+------+---------
- 1  | node1 | primary | running | running | 7851 | yes
- 2  | node2 | standby | running | running | 7889 | yes
- 3  | node3 | standby | running | running | 7918 | yes</programlisting>
-    </para>
-
-    <note>
-      <para>
-        If executing a switchover with  <link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link>,
-		&repmgr; will automatically pause/unpause &repmgrd; as part of the switchover process.
-      </para>
-    </note>
-
-    <para>
-      If the primary (in this example, <literal>node1</literal>) is stopped, &repmgrd;
-      running on one of the standbys (here: <literal>node2</literal>) will react like this:
-      <programlisting>
-[2018-09-20 12:22:21] [WARNING] unable to connect to upstream node "node1" (ID: 1)
-[2018-09-20 12:22:21] [INFO] checking state of node 1, 1 of 5 attempts
-[2018-09-20 12:22:21] [INFO] sleeping 1 seconds until next reconnection attempt
-...
-[2018-09-20 12:22:24] [INFO] sleeping 1 seconds until next reconnection attempt
-[2018-09-20 12:22:25] [INFO] checking state of node 1, 5 of 5 attempts
-[2018-09-20 12:22:25] [WARNING] unable to reconnect to node 1 after 5 attempts
-[2018-09-20 12:22:25] [NOTICE] node is paused
-[2018-09-20 12:22:33] [INFO] node "node2" (ID: 2) monitoring upstream node "node1" (ID: 1) in degraded state
-[2018-09-20 12:22:33] [DETAIL] repmgrd paused by administrator
-[2018-09-20 12:22:33] [HINT] execute "repmgr daemon unpause" to resume normal failover mode</programlisting>
-    </para>
-    <para>
-      If the primary becomes available again (e.g. following a software upgrade), &repmgrd;
-      will automatically reconnect, e.g.:
-      <programlisting>
-[2018-09-20 13:12:41] [NOTICE] reconnected to upstream node 1 after 8 seconds, resuming monitoring</programlisting>
-    </para>
-
-    <para>
-      To unpause &repmgrd;, execute <link linkend="repmgr-daemon-unpause"><command>repmgr daemon unpause</command></link>, e.g.:
-   <programlisting>
-$ repmgr -f /etc/repmgr.conf daemon unpause
-NOTICE: node 1 (node1) unpaused
-NOTICE: node 2 (node2) unpaused
-NOTICE: node 3 (node3) unpaused</programlisting>
-    </para>
-
-    <note>
-      <para>
-        If the previous primary is no longer accessible when &repmgrd;
-        is unpaused, no failover action will be taken. Instead, a new primary must be manually promoted using
-        <link linkend="repmgr-standby-promote"><command>repmgr standby promote</command></link>,
-		and any standbys attached to the new primary with
-		<link linkend="repmgr-standby-follow"><command>repmgr standby follow</command></link>.
-      </para>
-      <para>
-        This is to prevent <link linkend="repmgr-daemon-unpause"><command>repmgr daemon unpause</command></link>
-        resulting in the automatic promotion of a new primary, which may be a problem particularly
-        in larger clusters, where &repmgrd; could select a different promotion
-        candidate to the one intended by the administrator.
-      </para>
-    </note>
-  </sect2>
-  <sect2 id="repmgrd-pausing-details">
-    <title>Details on the &repmgrd; pausing mechanism</title>
-
-    <para>
-      The pause state of each node will be stored over a PostgreSQL restart.
-    </para>
-
-	<para>
-	  <link linkend="repmgr-daemon-pause"><command>repmgr daemon pause</command></link> and
-	  <link linkend="repmgr-daemon-unpause"><command>repmgr daemon unpause</command></link> can be
-	  executed even if &repmgrd; is not running; in this case,
-	  &repmgrd; will start up in whichever pause state has been set.
-	</para>
-    <note>
-      <para>
-		<link linkend="repmgr-daemon-pause"><command>repmgr daemon pause</command></link> and
-		<link linkend="repmgr-daemon-unpause"><command>repmgr daemon unpause</command></link>
-		<emphasis>do not</emphasis> stop/start &repmgrd;.
-      </para>
-    </note>
-  </sect2>
-  </sect1>
-
-  <sect1 id="repmgrd-wal-replay-pause">
-    <title>repmgrd and paused WAL replay</title>
-
-    <indexterm>
-      <primary>repmgrd</primary>
-      <secondary>paused WAL replay</secondary>
-    </indexterm>
-
-    <para>
-      If WAL replay has been paused (using <command>pg_wal_replay_pause()</command>,
-      on PostgreSQL 9.6 and earlier <command>pg_xlog_replay_pause()</command>),
-      in a failover situation &repmgrd; will
-      automatically resume WAL replay.
-    </para>
-    <para>
-      This is because if WAL replay is paused, but WAL is pending replay,
-      PostgreSQL cannot be promoted until WAL replay is resumed.
-    </para>
-    <note>
-      <para>
-        <command><link linkend="repmgr-standby-promote">repmgr standby promote</link></command>
-        will refuse to promote a node in this state, as the PostgreSQL
-        <command>promote</command> command will not be acted on until
-        WAL replay is resumed, leaving the cluster in a potentially
-        unstable state. In this case it is up to the user to
-        decide whether to resume WAL replay.
-      </para>
-    </note>
-  </sect1>
-
-<sect1 id="repmgrd-degraded-monitoring" xreflabel="repmgrd degraded monitoring">
- <title>"degraded monitoring" mode</title>
-
- <indexterm>
-   <primary>repmgrd</primary>
-   <secondary>degraded monitoring</secondary>
- </indexterm>
-
- <indexterm>
-   <primary>degraded monitoring</primary>
- </indexterm>
-
- <para>
-  In certain circumstances, &repmgrd; is not able to fulfill its primary mission
-  of monitoring the node's upstream server. In these cases it enters &quot;degraded monitoring&quot;
-  mode, where &repmgrd; remains active but is waiting for the situation
-  to be resolved.
- </para>
- <para>
-  Situations where this happens are:
-  <itemizedlist spacing="compact" mark="bullet">
-
-   <listitem>
-    <simpara>a failover situation has occurred, no nodes in the primary node's location are visible</simpara>
-   </listitem>
-
-   <listitem>
-    <simpara>a failover situation has occurred, but no promotion candidate is available</simpara>
-   </listitem>
-
-   <listitem>
-    <simpara>a failover situation has occurred, but the promotion candidate could not be promoted</simpara>
-   </listitem>
-
-   <listitem>
-    <simpara>a failover situation has occurred, but the node was unable to follow the new primary</simpara>
-   </listitem>
-
-   <listitem>
-    <simpara>a failover situation has occurred, but no primary has become available</simpara>
-   </listitem>
-
-   <listitem>
-    <simpara>a failover situation has occurred, but automatic failover is not enabled for the node</simpara>
-   </listitem>
-
-   <listitem>
-    <simpara>repmgrd is monitoring the primary node, but it is not available (and no other node has been promoted as primary)</simpara>
-   </listitem>
-  </itemizedlist>
- </para>
-
- <para>
-  Example output in a situation where there is only one standby with <literal>failover=manual</literal>,
-  and the primary node is unavailable (but is later restarted):
-  <programlisting>
-    [2017-08-29 10:59:19] [INFO] node "node2" (ID: 2) monitoring upstream node "node1" (ID: 1) in normal state (automatic failover disabled)
-    [2017-08-29 10:59:33] [WARNING] unable to connect to upstream node "node1" (ID: 1)
-    [2017-08-29 10:59:33] [INFO] checking state of node 1, 1 of 5 attempts
-    [2017-08-29 10:59:33] [INFO] sleeping 1 seconds until next reconnection attempt
-    (...)
-    [2017-08-29 10:59:37] [INFO] checking state of node 1, 5 of 5 attempts
-    [2017-08-29 10:59:37] [WARNING] unable to reconnect to node 1 after 5 attempts
-    [2017-08-29 10:59:37] [NOTICE] this node is not configured for automatic failover so will not be considered as promotion candidate
-    [2017-08-29 10:59:37] [NOTICE] no other nodes are available as promotion candidate
-    [2017-08-29 10:59:37] [HINT] use "repmgr standby promote" to manually promote this node
-    [2017-08-29 10:59:37] [INFO] node "node2" (ID: 2) monitoring upstream node "node1" (ID: 1) in degraded state (automatic failover disabled)
-    [2017-08-29 10:59:53] [INFO] node "node2" (ID: 2) monitoring upstream node "node1" (ID: 1) in degraded state (automatic failover disabled)
-    [2017-08-29 11:00:45] [NOTICE] reconnected to upstream node 1 after 68 seconds, resuming monitoring
-    [2017-08-29 11:00:57] [INFO] node "node2" (ID: 2) monitoring upstream node "node1" (ID: 1) in normal state (automatic failover disabled)</programlisting>
-
- </para>
- <para>
-  By default, <literal>repmgrd</literal> will continue in degraded monitoring mode indefinitely.
-  However a timeout (in seconds) can be set with <varname>degraded_monitoring_timeout</varname>,
-  after which &repmgrd; will terminate.
- </para>
-
- <note>
-   <para>
-     If &repmgrd; is monitoring a primary mode which has been stopped
-     and manually restarted as a standby attached to a new primary, it will automatically detect
-     the status change and update the node record to reflect the node's new status
-     as an active standby. It will then resume monitoring the node as a standby.
-   </para>
- </note>
-</sect1>
-
-
-<sect1 id="repmgrd-monitoring" xreflabel="Storing monitoring data">
- <title>Storing monitoring data</title>
- <indexterm>
-   <primary>repmgrd</primary>
-   <secondary>monitoring</secondary>
- </indexterm>
- <indexterm>
-   <primary>monitoring</primary>
-   <secondary>with repmgrd</secondary>
- </indexterm>
-
- <para>
-   When &repmgrd; is running with the option <literal>monitoring_history=true</literal>,
-  it will constantly write standby node status information to the
-  <varname>monitoring_history</varname> table, providing a near-real time
-  overview of replication status on all nodes
-  in the cluster.
- </para>
- <para>
-   The view <literal>replication_status</literal> shows the most recent state
-   for each node, e.g.:
-  <programlisting>
-    repmgr=# select * from repmgr.replication_status;
-    -[ RECORD 1 ]-------------+------------------------------
-    primary_node_id           | 1
-    standby_node_id           | 2
-    standby_name              | node2
-    node_type                 | standby
-    active                    | t
-    last_monitor_time         | 2017-08-24 16:28:41.260478+09
-    last_wal_primary_location | 0/6D57A00
-    last_wal_standby_location | 0/5000000
-    replication_lag           | 29 MB
-    replication_time_lag      | 00:00:11.736163
-    apply_lag                 | 15 MB
-    communication_time_lag    | 00:00:01.365643</programlisting>
- </para>
- <para>
-  The interval in which monitoring history is written is controlled by the
-  configuration parameter <varname>monitor_interval_secs</varname>;
-  default is 2.
- </para>
- <para>
-  As this can generate a large amount of monitoring data in the table
-  <literal>repmgr.monitoring_history</literal>. it's advisable to regularly
-  purge historical data using the <xref linkend="repmgr-cluster-cleanup"/>
-  command; use the <literal>-k/--keep-history</literal> option to
-  specify how many day's worth of data should be retained.
- </para>
- <para>
-  It's possible to use &repmgrd; to run in monitoring
-  mode only (without automatic failover capability) for some or all
-  nodes by setting <literal>failover=manual</literal> in the node's
-  <filename>repmgr.conf</filename> file. In the event of the node's upstream failing,
-  no failover action will be taken and the node will require manual intervention to
-  be reattached to replication. If this occurs, an
-  <link linkend="event-notifications">event notification</link>
-  <varname>standby_disconnect_manual</varname> will be created.
- </para>
- <para>
-  Note that when a standby node is not streaming directly from its upstream
-  node, e.g. recovering WAL from an archive, <varname>apply_lag</varname> will always appear as
-  <literal>0 bytes</literal>.
- </para>
- <tip>
-  <para>
-   If monitoring history is enabled, the contents of the <literal>repmgr.monitoring_history</literal>
-   table will be replicated to attached standbys. This means there will be a small but
-   constant stream of replication activity which may not be desirable. To prevent
-   this, convert the table to an <literal>UNLOGGED</literal> one with:
-   <programlisting>
-     ALTER TABLE repmgr.monitoring_history SET UNLOGGED;</programlisting>
-  </para>
-  <para>
-   This will however mean that monitoring history will not be available on
-   another node following a failover, and the view <literal>repmgr.replication_status</literal>
-   will not work on standbys.
-  </para>
- </tip>
-</sect1>
-
-
-</chapter>

doc/repmgrd-overview.xml

@@ -1,187 +0,0 @@
-<chapter id="repmgrd-overview" xreflabel="repmgrd overview">
-  <title>repmgrd overview</title>
-
-  <indexterm>
-    <primary>repmgrd</primary>
-    <secondary>overview</secondary>
-  </indexterm>
-
-  <para>
-    &repmgrd; (&quot;<literal>replication manager daemon</literal>&quot;)
-    is a management and monitoring daemon which runs
-    on each node in a replication cluster. It can automate actions such as
-    failover and updating standbys to follow the new primary, as well as
-    providing monitoring information about the state of each standby.
-  </para>
-  <para>
-    &repmgrd; is designed to be straightforward to set up
-    and does not require additional external infrastructure.
-  </para>
-  <para>
-    Functionality provided by &repmgrd; includes:
-    <itemizedlist spacing="compact" mark="bullet">
-
-       <listitem>
-         <simpara>
-           wide range of <link linkend="repmgrd-basic-configuration">configuration options</link>
-         </simpara>
-       </listitem>
-
-       <listitem>
-         <simpara>
-           option to execute custom scripts (&quot;<link linkend="event-notifications">event notifications</link>
-           at different points in the failover sequence
-         </simpara>
-       </listitem>
-
-       <listitem>
-         <simpara>
-           ability to <link linkend="repmgrd-pausing">pause repmgrd</link>
-           operation on all nodes with a
-           <link linkend="repmgr-daemon-pause"><command>single command</command></link>
-         </simpara>
-       </listitem>
-
-       <listitem>
-         <simpara>
-           optional <link linkend="repmgrd-witness-server">witness server</link>
-         </simpara>
-       </listitem>
-
-       <listitem>
-         <simpara>
-           &quot;location&quot; configuration option to restrict
-           potential promotion candidates to a single location
-           (e.g. when nodes are spread over multiple data centres)
-         </simpara>
-       </listitem>
-
-       <listitem>
-         <simpara>
-           <link linkend="connection-check-type">choice of method</link> to determine node availability
-           (PostgreSQL ping, query execution or new connection)
-         </simpara>
-       </listitem>
-
-       <listitem>
-         <simpara>
-           retention of monitoring statistics (optional)
-         </simpara>
-       </listitem>
-
-
-    </itemizedlist>
-
-  </para>
-
-  <sect1 id="repmgrd-demonstration">
-
-    <title>repmgrd demonstration</title>
-    <para>
-  To demonstrate automatic failover, set up a 3-node replication cluster (one primary
-  and two standbys streaming directly from the primary) so that the cluster looks
-  something like this:
-  <programlisting>
-    $ repmgr -f /etc/repmgr.conf cluster show --compact
-     ID | Name  | Role    | Status    | Upstream | Location | Prio.
-    ----+-------+---------+-----------+----------+----------+-------
-     1  | node1 | primary | * running |          | default  | 100
-     2  | node2 | standby |   running | node1    | default  | 100
-     3  | node3 | standby |   running | node1    | default  | 100</programlisting>
- </para>
-
- <tip>
-   <para>
-     See section <link linkend="repmgrd-automatic-failover-configuration">Required configuration for automatic failover</link>
-     for an example of minimal <filename>repmgr.conf</filename> file settings suitable for use with &repmgrd;.
-   </para>
- </tip>
- <para>
-  Start &repmgrd; on each standby and verify that it's running by examining the
-  log output, which at log level <literal>INFO</literal> will look like this:
-  <programlisting>
-    [2019-03-15 06:32:05] [NOTICE] repmgrd (repmgrd 4.3) starting up
-    [2019-03-15 06:32:05] [INFO] connecting to database "host=node2 dbname=repmgr user=repmgr connect_timeout=2"
-    INFO:  set_repmgrd_pid(): provided pidfile is /var/run/repmgr/repmgrd-11.pid
-    [2019-03-15 06:32:05] [NOTICE] starting monitoring of node "node2" (ID: 2)
-    [2019-03-15 06:32:05] [INFO] monitoring connection to upstream node "node1" (ID: 1)</programlisting>
- </para>
- <para>
-  Each &repmgrd; should also have recorded its successful startup as an event:
-  <programlisting>
-    $ repmgr -f /etc/repmgr.conf cluster event --event=repmgrd_start
-     Node ID | Name  | Event         | OK | Timestamp           | Details
-    ---------+-------+---------------+----+---------------------+--------------------------------------------------------
-     3       | node3 | repmgrd_start | t  | 2019-03-14 04:17:30 | monitoring connection to upstream node "node1" (ID: 1)
-     2       | node2 | repmgrd_start | t  | 2019-03-14 04:11:47 | monitoring connection to upstream node "node1" (ID: 1)
-     1       | node1 | repmgrd_start | t  | 2019-03-14 04:04:31 | monitoring cluster primary "node1" (ID: 1)</programlisting>
- </para>
- <para>
-  Now stop the current primary server with e.g.:
-  <programlisting>
-    pg_ctl -D /var/lib/postgresql/data -m immediate stop</programlisting>
- </para>
- <para>
-  This will force the primary to shut down straight away, aborting all processes
-  and transactions.  This will cause a flurry of activity in the &repmgrd; log
-  files as each &repmgrd; detects the failure of the primary and a failover
-  decision is made. This is an extract from the log of a standby server (<literal>node2</literal>)
-  which has promoted to new primary after failure of the original primary (<literal>node1</literal>).
-  <programlisting>
-    [2019-03-15 06:37:50] [WARNING] unable to connect to upstream node "node1" (ID: 1)
-    [2019-03-15 06:37:50] [INFO] checking state of node 1, 1 of 3 attempts
-    [2019-03-15 06:37:50] [INFO] sleeping 5 seconds until next reconnection attempt
-    [2019-03-15 06:37:55] [INFO] checking state of node 1, 2 of 3 attempts
-    [2019-03-15 06:37:55] [INFO] sleeping 5 seconds until next reconnection attempt
-    [2019-03-15 06:38:00] [INFO] checking state of node 1, 3 of 3 attempts
-    [2019-03-15 06:38:00] [WARNING] unable to reconnect to node 1 after 3 attempts
-    [2019-03-15 06:38:00] [INFO] primary and this node have the same location ("default")
-    [2019-03-15 06:38:00] [INFO] local node's last receive lsn: 0/900CBF8
-    [2019-03-15 06:38:00] [INFO] node 3 last saw primary node 12 second(s) ago
-    [2019-03-15 06:38:00] [INFO] last receive LSN for sibling node "node3" (ID: 3) is: 0/900CBF8
-    [2019-03-15 06:38:00] [INFO] node "node3" (ID: 3) has same LSN as current candidate "node2" (ID: 2)
-    [2019-03-15 06:38:00] [INFO] visible nodes: 2; total nodes: 2; no nodes have seen the primary within the last 4 seconds
-    [2019-03-15 06:38:00] [NOTICE] promotion candidate is "node2" (ID: 2)
-    [2019-03-15 06:38:00] [NOTICE] this node is the winner, will now promote itself and inform other nodes
-    [2019-03-15 06:38:00] [INFO] promote_command is:
-      "/usr/pgsql-11/bin/repmgr -f /etc/repmgr/11/repmgr.conf standby promote"
-    NOTICE: promoting standby to primary
-    DETAIL: promoting server "node2" (ID: 2) using "/usr/pgsql-11/bin/pg_ctl  -w -D '/var/lib/pgsql/11/data' promote"
-    NOTICE: waiting up to 60 seconds (parameter "promote_check_timeout") for promotion to complete
-    NOTICE: STANDBY PROMOTE successful
-    DETAIL: server "node2" (ID: 2) was successfully promoted to primary
-    [2019-03-15 06:38:01] [INFO] 3 followers to notify
-    [2019-03-15 06:38:01] [NOTICE] notifying node "node3" (ID: 3) to follow node 2
-    INFO:  node 3 received notification to follow node 2
-    [2019-03-15 06:38:01] [INFO] switching to primary monitoring mode
-    [2019-03-15 06:38:01] [NOTICE] monitoring cluster primary "node2" (ID: 2)</programlisting>
- </para>
- <para>
-  The cluster status will now look like this, with the original primary (<literal>node1</literal>)
-  marked as inactive, and standby <literal>node3</literal> now following the new primary
-  (<literal>node2</literal>):
-  <programlisting>
-    $ repmgr -f /etc/repmgr.conf cluster show --compact
-     ID | Name  | Role    | Status    | Upstream | Location | Prio.
-    ----+-------+---------+-----------+----------+----------+-------
-     1  | node1 | primary | - failed  |          | default  | 100
-     2  | node2 | primary | * running |          | default  | 100
-     3  | node3 | standby |   running | node2    | default  | 100</programlisting>
-
- </para>
- <para>
-   <link linkend="repmgr-cluster-event"><command>repmgr cluster event</command></link> will display a summary of
-   what happened to each server during the failover:
-  <programlisting>
-    $ repmgr -f /etc/repmgr.conf cluster event
-     Node ID | Name  | Event                      | OK | Timestamp           | Details
-    ---------+-------+----------------------------+----+---------------------+-------------------------------------------------------------
-     3       | node3 | repmgrd_failover_follow    | t  | 2019-03-15 06:38:03 | node 3 now following new upstream node 2
-     3       | node3 | standby_follow             | t  | 2019-03-15 06:38:02 | standby attached to upstream node "node2" (ID: 2)
-     2       | node2 | repmgrd_reload             | t  | 2019-03-15 06:38:01 | monitoring cluster primary "node2" (ID: 2)
-     2       | node2 | repmgrd_failover_promote   | t  | 2019-03-15 06:38:01 | node 2 promoted to primary; old primary 1 marked as failed
-     2       | node2 | standby_promote            | t  | 2019-03-15 06:38:01 | server "node2" (ID: 2) was successfully promoted to primary</programlisting>
- </para>
-
-  </sect1>
-</chapter>

doc/repmgrd-pausing.sgml

@@ -0,0 +1,178 @@
+<chapter id="repmgrd-pausing" xreflabel="Pausing repmgrd">
+
+  <indexterm>
+    <primary>repmgrd</primary>
+    <secondary>pausing</secondary>
+  </indexterm>
+
+  <indexterm>
+    <primary>pausing repmgrd</primary>
+  </indexterm>
+
+  <title>Pausing repmgrd</title>
+
+  <para>
+    In normal operation, <application>repmgrd</application> monitors the state of the
+    PostgreSQL node it is running on, and will take appropriate action if problems
+    are detected, e.g. (if so configured) promote the node to primary, if the existing
+    primary has been determined as failed.
+  </para>
+
+  <para>
+    However, <application>repmgrd</application> is unable to distinguish between
+    planned outages (such as performing a <link linkend="performing-switchover">switchover</link>
+    or installing PostgreSQL maintenance released), and an actual server outage. In versions prior to
+    &repmgr; 4.2 it was necessary to stop <application>repmgrd</application> on all nodes (or at least
+    on all nodes where <application>repmgrd</application> is
+    <link linkend="repmgrd-automatic-failover">configured for automatic failover</link>)
+    to prevent <application>repmgrd</application> from making unintentional changes to the
+    replication cluster.
+  </para>
+
+  <para>
+    From <link linkend="release-4.2">&repmgr; 4.2</link>, <application>repmgrd</application>
+    can now be &quot;paused&quot;, i.e. instructed not to take any action such as performing a failover.
+    This can be done from any node in the cluster, removing the need to stop/restart
+    each <application>repmgrd</application> individually.
+  </para>
+
+  <note>
+    <para>
+      For major PostgreSQL upgrades, e.g. from PostgreSQL 10 to PostgreSQL 11,
+      <application>repmgrd</application> should be shut down completely and only started up
+      once the &repmgr; packages for the new PostgreSQL major version have been installed.
+    </para>
+  </note>
+
+  <sect1 id="repmgrd-pausing-prerequisites">
+    <title>Prerequisites for pausing <application>repmgrd</application></title>
+    <para>
+      In order to be able to pause/unpause <application>repmgrd</application>, following
+      prerequisites must be met:
+      <itemizedlist spacing="compact" mark="bullet">
+
+        <listitem>
+          <simpara><link linkend="release-4.2">&repmgr; 4.2</link> or later must be installed on all nodes.</simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>The same major &repmgr; version (e.g. 4.2) must be installed on all nodes (and preferably the same minor version).</simpara>
+        </listitem>
+
+        <listitem>
+          <simpara>
+            PostgreSQL on all nodes must be accessible from the node where the
+            <literal>pause</literal>/<literal>unpause</literal> operation is executed, using the
+            <varname>conninfo</varname> string shown by <link linkend="repmgr-cluster-show"><command>repmgr cluster show</command></link>.
+          </simpara>
+        </listitem>
+      </itemizedlist>
+    </para>
+    <note>
+      <para>
+        These conditions are required for normal &repmgr; operation in any case.
+      </para>
+    </note>
+
+  </sect1>
+
+  <sect1 id="repmgrd-pausing-execution">
+    <title>Pausing/unpausing <application>repmgrd</application></title>
+    <para>
+      To pause <application>repmgrd</application>, execute <link linkend="repmgr-daemon-pause"><command>repmgr daemon pause</command></link>, e.g.:
+   <programlisting>
+$ repmgr -f /etc/repmgr.conf daemon pause
+NOTICE: node 1 (node1) paused
+NOTICE: node 2 (node2) paused
+NOTICE: node 3 (node3) paused</programlisting>
+    </para>
+    <para>
+      The state of <application>repmgrd</application> on each node can be checked with
+      <link linkend="repmgr-daemon-status"><command>repmgr daemon status</command></link>, e.g.:
+    <programlisting>$ repmgr -f /etc/repmgr.conf daemon status
+ ID | Name  | Role    | Status  | repmgrd | PID  | Paused?
+----+-------+---------+---------+---------+------+---------
+ 1  | node1 | primary | running | running | 7851 | yes
+ 2  | node2 | standby | running | running | 7889 | yes
+ 3  | node3 | standby | running | running | 7918 | yes</programlisting>
+    </para>
+
+    <note>
+      <para>
+        If executing a switchover with  <link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link>,
+		&repmgr; will automatically pause/unpause <application>repmgrd</application> as part of the switchover process.
+      </para>
+    </note>
+
+    <para>
+      If the primary (in this example, <literal>node1</literal>) is stopped, <application>repmgrd</application>
+      running on one of the standbys (here: <literal>node2</literal>) will react like this:
+      <programlisting>
+[2018-09-20 12:22:21] [WARNING] unable to connect to upstream node "node1" (node ID: 1)
+[2018-09-20 12:22:21] [INFO] checking state of node 1, 1 of 5 attempts
+[2018-09-20 12:22:21] [INFO] sleeping 1 seconds until next reconnection attempt
+...
+[2018-09-20 12:22:24] [INFO] sleeping 1 seconds until next reconnection attempt
+[2018-09-20 12:22:25] [INFO] checking state of node 1, 5 of 5 attempts
+[2018-09-20 12:22:25] [WARNING] unable to reconnect to node 1 after 5 attempts
+[2018-09-20 12:22:25] [NOTICE] node is paused
+[2018-09-20 12:22:33] [INFO] node "node2" (node ID: 2) monitoring upstream node "node1" (node ID: 1) in degraded state
+[2018-09-20 12:22:33] [DETAIL] repmgrd paused by administrator
+[2018-09-20 12:22:33] [HINT] execute "repmgr daemon unpause" to resume normal failover mode</programlisting>
+    </para>
+    <para>
+      If the primary becomes available again (e.g. following a software upgrade), <application>repmgrd</application>
+      will automatically reconnect, e.g.:
+      <programlisting>
+[2018-09-20 13:12:41] [NOTICE] reconnected to upstream node 1 after 8 seconds, resuming monitoring</programlisting>
+    </para>
+
+    <para>
+      To unpause <application>repmgrd</application>, execute <link linkend="repmgr-daemon-unpause"><command>repmgr daemon unpause</command></link>, e.g.:
+   <programlisting>
+$ repmgr -f /etc/repmgr.conf daemon unpause
+NOTICE: node 1 (node1) unpaused
+NOTICE: node 2 (node2) unpaused
+NOTICE: node 3 (node3) unpaused</programlisting>
+    </para>
+
+    <note>
+      <para>
+        If the previous primary is no longer accessible when <application>repmgrd</application>
+        is unpaused, no failover action will be taken. Instead, a new primary must be manually promoted using
+        <link linkend="repmgr-standby-promote"><command>repmgr standby promote</command></link>,
+		and any standbys attached to the new primary with
+		<link linkend="repmgr-standby-follow"><command>repmgr standby follow</command></link>.
+      </para>
+      <para>
+        This is to prevent <link linkend="repmgr-daemon-unpause"><command>repmgr daemon unpause</command></link>
+        resulting in the automatic promotion of a new primary, which may be a problem particularly
+        in larger clusters, where <application>repmgrd</application> could select a different promotion
+        candidate to the one intended by the administrator.
+      </para>
+    </note>
+
+  <sect2 id="repmgrd-pausing-details">
+    <title>Details on the <application>repmgrd</application> pausing mechanism</title>
+
+    <para>
+      The pause state of each node will be stored over a PostgreSQL restart.
+    </para>
+
+	<para>
+	  <link linkend="repmgr-daemon-pause"><command>repmgr daemon pause</command></link> and
+	  <link linkend="repmgr-daemon-unpause"><command>repmgr daemon unpause</command></link> can be
+	  executed even if <application>repmgrd</application> is not running; in this case,
+	  <application>repmgrd</application> will start up in whichever pause state has been set.
+	</para>
+    <note>
+      <para>
+		<link linkend="repmgr-daemon-pause"><command>repmgr daemon pause</command></link> and
+		<link linkend="repmgr-daemon-unpause"><command>repmgr daemon unpause</command></link>
+		<emphasis>do not</emphasis> stop/start <application>repmgrd</application>.
+      </para>
+    </note>
+  </sect2>
+  </sect1>
+</chapter>
+

doc/repmgrd-witness-server.sgml

@@ -0,0 +1,31 @@
+<chapter id="repmgrd-witness-server" xreflabel="Using a witness server with repmgrd">
+ <indexterm>
+   <primary>repmgrd</primary>
+   <secondary>witness server</secondary>
+ </indexterm>
+
+ <title>Using a witness server with repmgrd</title>
+ <para>
+   In a situation caused e.g. by a network interruption between two
+   data centres, it's important to avoid a "split-brain" situation where
+   both sides of the network assume they are the active segment and the
+   side without an active primary unilaterally promotes one of its standbys.
+ </para>
+ <para>
+   To prevent this situation happening, it's essential to ensure that one
+   network segment has a "voting majority", so other segments will know
+   they're in the minority and not attempt to promote a new primary. Where
+   an odd number of servers exists, this is not an issue. However, if each
+   network has an even number of nodes, it's necessary to provide some way
+   of ensuring a majority, which is where the witness server becomes useful.
+ </para>
+ <para>
+   This is not a fully-fledged standby node and is not integrated into
+   replication, but it effectively represents the "casting vote" when
+   deciding which network segment has a majority. A witness server can
+   be set up using <xref linkend="repmgr-witness-register">. Note that it only
+   makes sense to create a witness server in conjunction with running
+   <application>repmgrd</application>; the witness server will require its own
+   <application>repmgrd</application> instance.
+ </para>
+</chapter>

doc/stylesheet-common.xsl

@@ -1,89 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                version="1.0">
-
-<!--
-  This file contains XSLT stylesheet customizations that are common to
-  all output formats (HTML, HTML Help, XSL-FO, etc.).
-  -->
-
-<xsl:include href="stylesheet-speedup-common.xsl" />
-
-<!-- Parameters -->
-
-<!--
-<xsl:param name="draft.mode">
-  <xsl:choose>
-    <xsl:when test="contains($repmgr.version, 'devel')">yes</xsl:when>
-    <xsl:otherwise>no</xsl:otherwise>
-  </xsl:choose>
-</xsl:param>
--->
-
-<xsl:param name="show.comments">
-  <xsl:choose>
-    <xsl:when test="contains($repmgr.version, 'devel')">1</xsl:when>
-    <xsl:otherwise>0</xsl:otherwise>
-  </xsl:choose>
-</xsl:param>
-
-<xsl:param name="callout.graphics" select="'0'"></xsl:param>
-<xsl:param name="toc.section.depth">2</xsl:param>
-<xsl:param name="linenumbering.extension" select="'0'"></xsl:param>
-<xsl:param name="section.autolabel" select="1"></xsl:param>
-<xsl:param name="section.label.includes.component.label" select="1"></xsl:param>
-<xsl:param name="refentry.generate.name" select="0"></xsl:param>
-<xsl:param name="refentry.generate.title" select="1"></xsl:param>
-<xsl:param name="refentry.xref.manvolnum" select="0"/>
-<xsl:param name="formal.procedures" select="0"></xsl:param>
-<xsl:param name="generate.consistent.ids" select="1"/>
-<xsl:param name="punct.honorific" select="''"></xsl:param>
-<xsl:param name="variablelist.term.break.after">1</xsl:param>
-<xsl:param name="variablelist.term.separator"></xsl:param>
-<xsl:param name="xref.with.number.and.title" select="0"></xsl:param>
-
-
-<!-- Change display of some elements -->
-
-<xsl:template match="productname">
-  <xsl:call-template name="inline.charseq"/>
-</xsl:template>
-
-<xsl:template match="structfield">
-  <xsl:call-template name="inline.monoseq"/>
-</xsl:template>
-
-<xsl:template match="structname">
-  <xsl:call-template name="inline.monoseq"/>
-</xsl:template>
-
-<xsl:template match="symbol">
-  <xsl:call-template name="inline.monoseq"/>
-</xsl:template>
-
-<xsl:template match="systemitem">
-  <xsl:call-template name="inline.charseq"/>
-</xsl:template>
-
-<xsl:template match="token">
-  <xsl:call-template name="inline.monoseq"/>
-</xsl:template>
-
-<xsl:template match="type">
-  <xsl:call-template name="inline.monoseq"/>
-</xsl:template>
-
-<xsl:template match="programlisting/emphasis">
-  <xsl:call-template name="inline.boldseq"/>
-</xsl:template>
-
-
-<!-- Special support for Tcl synopses -->
-
-<xsl:template match="optional[@role='tcl']">
-  <xsl:text>?</xsl:text>
-  <xsl:call-template name="inline.charseq"/>
-  <xsl:text>?</xsl:text>
-</xsl:template>
-
-</xsl:stylesheet>

doc/stylesheet-fo.xsl

@@ -1,97 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                version="1.0"
-                xmlns:fo="http://www.w3.org/1999/XSL/Format">
-
-<xsl:import href="http://docbook.sourceforge.net/release/xsl/current/fo/docbook.xsl"/>
-<xsl:include href="stylesheet-common.xsl" />
-
-<xsl:param name="fop1.extensions" select="1"></xsl:param>
-<xsl:param name="tablecolumns.extension" select="0"></xsl:param>
-<xsl:param name="toc.max.depth">3</xsl:param>
-<xsl:param name="ulink.footnotes" select="1"></xsl:param>
-<xsl:param name="use.extensions" select="1"></xsl:param>
-<xsl:param name="variablelist.as.blocks" select="1"></xsl:param>
-
-<xsl:attribute-set name="monospace.verbatim.properties"
-                   use-attribute-sets="verbatim.properties monospace.properties">
-  <xsl:attribute name="wrap-option">wrap</xsl:attribute>
-</xsl:attribute-set>
-
-<xsl:attribute-set name="nongraphical.admonition.properties">
-  <xsl:attribute name="border-style">solid</xsl:attribute>
-  <xsl:attribute name="border-width">1pt</xsl:attribute>
-  <xsl:attribute name="border-color">black</xsl:attribute>
-  <xsl:attribute name="padding-start">12pt</xsl:attribute>
-  <xsl:attribute name="padding-end">12pt</xsl:attribute>
-  <xsl:attribute name="padding-top">6pt</xsl:attribute>
-  <xsl:attribute name="padding-bottom">6pt</xsl:attribute>
-</xsl:attribute-set>
-
-<xsl:attribute-set name="admonition.title.properties">
-  <xsl:attribute name="text-align">center</xsl:attribute>
-</xsl:attribute-set>
-
-<!-- fix missing space after vertical simplelist
-     https://github.com/docbook/xslt10-stylesheets/issues/31 -->
-<xsl:attribute-set name="normal.para.spacing">
-  <xsl:attribute name="space-after.optimum">1em</xsl:attribute>
-  <xsl:attribute name="space-after.minimum">0.8em</xsl:attribute>
-  <xsl:attribute name="space-after.maximum">1.2em</xsl:attribute>
-</xsl:attribute-set>
-
-<!-- Change display of some elements -->
-
-<xsl:template match="command">
-  <xsl:call-template name="inline.monoseq"/>
-</xsl:template>
-
-<xsl:template match="confgroup" mode="bibliography.mode">
-  <fo:inline>
-    <xsl:apply-templates select="conftitle/text()" mode="bibliography.mode"/>
-    <xsl:text>, </xsl:text>
-    <xsl:apply-templates select="confdates/text()" mode="bibliography.mode"/>
-    <xsl:value-of select="$biblioentry.item.separator"/>
-  </fo:inline>
-</xsl:template>
-
-<xsl:template match="isbn" mode="bibliography.mode">
-  <fo:inline>
-    <xsl:text>ISBN </xsl:text>
-    <xsl:apply-templates mode="bibliography.mode"/>
-    <xsl:value-of select="$biblioentry.item.separator"/>
-  </fo:inline>
-</xsl:template>
-
-<!-- bug fix from <https://sourceforge.net/p/docbook/bugs/1360/#831b> -->
-
-<xsl:template match="varlistentry/term" mode="xref-to">
-  <xsl:param name="verbose" select="1"/>
-  <xsl:apply-templates mode="no.anchor.mode"/>
-</xsl:template>
-
-<!-- include refsects in PDF bookmarks
-     (https://github.com/docbook/xslt10-stylesheets/issues/46) -->
-
-<xsl:template match="refsect1|refsect2|refsect3"
-              mode="bookmark">
-
-  <xsl:variable name="id">
-    <xsl:call-template name="object.id"/>
-  </xsl:variable>
-  <xsl:variable name="bookmark-label">
-    <xsl:apply-templates select="." mode="object.title.markup"/>
-  </xsl:variable>
-
-  <fo:bookmark internal-destination="{$id}">
-    <xsl:attribute name="starting-state">
-      <xsl:value-of select="$bookmarks.state"/>
-    </xsl:attribute>
-    <fo:bookmark-title>
-      <xsl:value-of select="normalize-space($bookmark-label)"/>
-    </fo:bookmark-title>
-    <xsl:apply-templates select="*" mode="bookmark"/>
-  </fo:bookmark>
-</xsl:template>
-
-</xsl:stylesheet>

doc/stylesheet-html-common.xsl

@@ -1,292 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE xsl:stylesheet [
-<!ENTITY % common.entities SYSTEM "http://docbook.sourceforge.net/release/xsl/current/common/entities.ent">
-%common.entities;
-]>
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                version="1.0">
-
-<!--
-  This file contains XSLT stylesheet customizations that are common to
-  all HTML output variants (chunked and single-page).
-  -->
-
-<!-- Parameters -->
-<xsl:param name="make.valid.html" select="1"></xsl:param>
-<xsl:param name="generate.id.attributes" select="1"></xsl:param>
-<xsl:param name="make.graphic.viewport" select="0"/>
-<xsl:param name="link.mailto.url">pgsql-docs@lists.postgresql.org</xsl:param>
-<xsl:param name="toc.max.depth">2</xsl:param>
-
-
-<!-- Change display of some elements -->
-
-<xsl:template match="command">
-  <xsl:call-template name="inline.monoseq"/>
-</xsl:template>
-
-<xsl:template match="confgroup" mode="bibliography.mode">
-  <span>
-    <xsl:call-template name="common.html.attributes"/>
-    <xsl:call-template name="id.attribute"/>
-    <xsl:apply-templates select="conftitle/text()" mode="bibliography.mode"/>
-    <xsl:text>, </xsl:text>
-    <xsl:apply-templates select="confdates/text()" mode="bibliography.mode"/>
-    <xsl:copy-of select="$biblioentry.item.separator"/>
-  </span>
-</xsl:template>
-
-<xsl:template match="isbn" mode="bibliography.mode">
-  <span>
-    <xsl:call-template name="common.html.attributes"/>
-    <xsl:call-template name="id.attribute"/>
-    <xsl:text>ISBN </xsl:text>
-    <xsl:apply-templates mode="bibliography.mode"/>
-    <xsl:copy-of select="$biblioentry.item.separator"/>
-  </span>
-</xsl:template>
-
-
-<!-- table of contents configuration -->
-
-<xsl:param name="generate.toc">
-appendix  toc,title
-article/appendix  nop
-article   toc,title
-book      toc,title
-chapter   toc,title
-part      toc,title
-preface   toc,title
-qandadiv  toc
-qandaset  toc
-reference toc,title
-sect1     toc
-sect2     toc
-sect3     toc
-sect4     toc
-sect5     toc
-section   toc
-set       toc,title
-</xsl:param>
-
-<xsl:param name="generate.section.toc.level" select="1"></xsl:param>
-
-<!-- include refentry under sect1 in tocs -->
-<xsl:template match="sect1" mode="toc">
-  <xsl:param name="toc-context" select="."/>
-  <xsl:call-template name="subtoc">
-    <xsl:with-param name="toc-context" select="$toc-context"/>
-    <xsl:with-param name="nodes" select="sect2|refentry
-                                         |bridgehead[$bridgehead.in.toc != 0]"/>
-  </xsl:call-template>
-</xsl:template>
-
-
-<!-- Put index "quicklinks" (A | B | C | ...) at the top of the bookindex page. -->
-
-<!-- from html/autoidx.xsl -->
-
-<xsl:template name="generate-basic-index">
-  <xsl:param name="scope" select="NOTANODE"/>
-
-  <xsl:variable name="role">
-    <xsl:if test="$index.on.role != 0">
-      <xsl:value-of select="@role"/>
-    </xsl:if>
-  </xsl:variable>
-
-  <xsl:variable name="type">
-    <xsl:if test="$index.on.type != 0">
-      <xsl:value-of select="@type"/>
-    </xsl:if>
-  </xsl:variable>
-
-  <xsl:variable name="terms"
-                select="//indexterm
-                        [count(.|key('letter',
-                          translate(substring(&primary;, 1, 1),
-                             &lowercase;,
-                             &uppercase;))
-                          [&scope;][1]) = 1
-                          and not(@class = 'endofrange')]"/>
-
-  <xsl:variable name="alphabetical"
-                select="$terms[contains(concat(&lowercase;, &uppercase;),
-                                        substring(&primary;, 1, 1))]"/>
-
-  <xsl:variable name="others" select="$terms[not(contains(concat(&lowercase;,
-                                                 &uppercase;),
-                                             substring(&primary;, 1, 1)))]"/>
-
-  <div class="index">
-    <!-- pgsql-docs: begin added stuff -->
-    <p class="indexdiv-quicklinks">
-      <a href="#indexdiv-Symbols">
-        <xsl:call-template name="gentext">
-          <xsl:with-param name="key" select="'index symbols'"/>
-        </xsl:call-template>
-      </a>
-      <xsl:apply-templates select="$alphabetical[count(.|key('letter',
-                                   translate(substring(&primary;, 1, 1),
-                                   &lowercase;,&uppercase;))[&scope;][1]) = 1]"
-                           mode="index-div-quicklinks">
-        <xsl:with-param name="position" select="position()"/>
-        <xsl:with-param name="scope" select="$scope"/>
-        <xsl:with-param name="role" select="$role"/>
-        <xsl:with-param name="type" select="$type"/>
-        <xsl:sort select="translate(&primary;, &lowercase;, &uppercase;)"/>
-      </xsl:apply-templates>
-    </p>
-    <!-- pgsql-docs: end added stuff -->
-
-    <xsl:if test="$others">
-      <xsl:choose>
-        <xsl:when test="normalize-space($type) != '' and
-                        $others[@type = $type][count(.|key('primary', &primary;)[&scope;][1]) = 1]">
-          <!-- pgsql-docs: added id attribute here for linking to it -->
-          <div class="indexdiv" id="indexdiv-Symbols">
-            <h3>
-              <xsl:call-template name="gentext">
-                <xsl:with-param name="key" select="'index symbols'"/>
-              </xsl:call-template>
-            </h3>
-            <dl>
-              <xsl:apply-templates select="$others[count(.|key('primary', &primary;)[&scope;][1]) = 1]"
-                                   mode="index-symbol-div">
-                <xsl:with-param name="position" select="position()"/>
-                <xsl:with-param name="scope" select="$scope"/>
-                <xsl:with-param name="role" select="$role"/>
-                <xsl:with-param name="type" select="$type"/>
-                <xsl:sort select="translate(&primary;, &lowercase;, &uppercase;)"/>
-              </xsl:apply-templates>
-            </dl>
-          </div>
-        </xsl:when>
-        <xsl:when test="normalize-space($type) != ''">
-          <!-- Output nothing, as there isn't a match for $other using this $type -->
-        </xsl:when>
-        <xsl:otherwise>
-          <!-- pgsql-docs: added id attribute here for linking to it -->
-          <div class="indexdiv" id="indexdiv-Symbols">
-            <h3>
-              <xsl:call-template name="gentext">
-                <xsl:with-param name="key" select="'index symbols'"/>
-              </xsl:call-template>
-            </h3>
-            <dl>
-              <xsl:apply-templates select="$others[count(.|key('primary',
-                                          &primary;)[&scope;][1]) = 1]"
-                                  mode="index-symbol-div">
-                <xsl:with-param name="position" select="position()"/>
-                <xsl:with-param name="scope" select="$scope"/>
-                <xsl:with-param name="role" select="$role"/>
-                <xsl:with-param name="type" select="$type"/>
-                <xsl:sort select="translate(&primary;, &lowercase;, &uppercase;)"/>
-              </xsl:apply-templates>
-            </dl>
-          </div>
-        </xsl:otherwise>
-      </xsl:choose>
-    </xsl:if>
-
-    <xsl:apply-templates select="$alphabetical[count(.|key('letter',
-                                 translate(substring(&primary;, 1, 1),
-                                           &lowercase;,&uppercase;))[&scope;][1]) = 1]"
-                         mode="index-div-basic">
-      <xsl:with-param name="position" select="position()"/>
-      <xsl:with-param name="scope" select="$scope"/>
-      <xsl:with-param name="role" select="$role"/>
-      <xsl:with-param name="type" select="$type"/>
-      <xsl:sort select="translate(&primary;, &lowercase;, &uppercase;)"/>
-    </xsl:apply-templates>
-  </div>
-</xsl:template>
-
-<xsl:template match="indexterm" mode="index-div-basic">
-  <xsl:param name="scope" select="."/>
-  <xsl:param name="role" select="''"/>
-  <xsl:param name="type" select="''"/>
-
-  <xsl:variable name="key"
-                select="translate(substring(&primary;, 1, 1),
-                         &lowercase;,&uppercase;)"/>
-
-  <xsl:if test="key('letter', $key)[&scope;]
-                [count(.|key('primary', &primary;)[&scope;][1]) = 1]">
-    <div class="indexdiv">
-      <!-- pgsql-docs: added id attribute here for linking to it -->
-      <xsl:attribute name="id">
-        <xsl:value-of select="concat('indexdiv-', $key)"/>
-      </xsl:attribute>
-
-      <xsl:if test="contains(concat(&lowercase;, &uppercase;), $key)">
-        <h3>
-          <xsl:value-of select="translate($key, &lowercase;, &uppercase;)"/>
-        </h3>
-      </xsl:if>
-      <dl>
-        <xsl:apply-templates select="key('letter', $key)[&scope;]
-                                     [count(.|key('primary', &primary;)
-                                     [&scope;][1])=1]"
-                             mode="index-primary">
-          <xsl:with-param name="position" select="position()"/>
-          <xsl:with-param name="scope" select="$scope"/>
-          <xsl:with-param name="role" select="$role"/>
-          <xsl:with-param name="type" select="$type"/>
-          <xsl:sort select="translate(&primary;, &lowercase;, &uppercase;)"/>
-        </xsl:apply-templates>
-      </dl>
-    </div>
-  </xsl:if>
-</xsl:template>
-
-<!-- pgsql-docs -->
-<xsl:template match="indexterm" mode="index-div-quicklinks">
-  <xsl:param name="scope" select="."/>
-  <xsl:param name="role" select="''"/>
-  <xsl:param name="type" select="''"/>
-
-  <xsl:variable name="key"
-                select="translate(substring(&primary;, 1, 1),
-                        &lowercase;,&uppercase;)"/>
-
-  <xsl:if test="key('letter', $key)[&scope;]
-                [count(.|key('primary', &primary;)[&scope;][1]) = 1]">
-    <xsl:if test="contains(concat(&lowercase;, &uppercase;), $key)">
-      |
-      <a>
-        <xsl:attribute name="href">
-          <xsl:value-of select="concat('#indexdiv-', $key)"/>
-        </xsl:attribute>
-        <xsl:value-of select="translate($key, &lowercase;, &uppercase;)"/>
-      </a>
-    </xsl:if>
-  </xsl:if>
-</xsl:template>
-
-
-<!-- upper case HTML anchors for backward compatibility -->
-
-<xsl:template name="object.id">
-  <xsl:param name="object" select="."/>
-  <xsl:choose>
-    <xsl:when test="$object/@id">
-      <xsl:value-of select="translate($object/@id, &lowercase;, &uppercase;)"/>
-    </xsl:when>
-    <xsl:when test="$object/@xml:id">
-      <xsl:value-of select="$object/@xml:id"/>
-    </xsl:when>
-    <xsl:when test="$generate.consistent.ids != 0">
-      <!-- Make $object the current node -->
-      <xsl:for-each select="$object">
-        <xsl:text>id-</xsl:text>
-        <xsl:number level="multiple" count="*"/>
-      </xsl:for-each>
-    </xsl:when>
-    <xsl:otherwise>
-      <xsl:value-of select="generate-id($object)"/>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>

doc/stylesheet-html-nochunk.xsl

@@ -1,23 +0,0 @@
-<?xml version='1.0'?>
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                version='1.0'
-                xmlns="http://www.w3.org/TR/xhtml1/transitional"
-                exclude-result-prefixes="#default">
-
-<xsl:import href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"/>
-<xsl:include href="stylesheet-common.xsl" />
-<xsl:include href="stylesheet-html-common.xsl" />
-<xsl:include href="stylesheet-speedup-xhtml.xsl" />
-
-<!-- embed SVG images into output file -->
-<xsl:template match="imagedata[@format='SVG']">
-  <xsl:variable name="filename">
-    <xsl:call-template name="mediaobject.filename">
-      <xsl:with-param name="object" select=".."/>
-    </xsl:call-template>
-  </xsl:variable>
-
-  <xsl:copy-of select="document($filename)"/>
-</xsl:template>
-
-</xsl:stylesheet>

doc/stylesheet-speedup-common.xsl

@@ -1,100 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                version='1.0'>
-
-<!-- Performance-optimized versions of some upstream templates from common/
-     directory -->
-
-<!-- from common/labels.xsl -->
-
-<xsl:template match="chapter" mode="label.markup">
-  <xsl:choose>
-    <xsl:when test="@label">
-      <xsl:value-of select="@label"/>
-    </xsl:when>
-    <xsl:when test="string($chapter.autolabel) != 0">
-      <xsl:if test="$component.label.includes.part.label != 0 and
-                      ancestor::part">
-        <xsl:variable name="part.label">
-          <xsl:apply-templates select="ancestor::part"
-                               mode="label.markup"/>
-        </xsl:variable>
-        <xsl:if test="$part.label != ''">
-          <xsl:value-of select="$part.label"/>
-          <xsl:apply-templates select="ancestor::part"
-                               mode="intralabel.punctuation">
-            <xsl:with-param name="object" select="."/>
-          </xsl:apply-templates>
-        </xsl:if>
-      </xsl:if>
-      <xsl:variable name="format">
-        <xsl:call-template name="autolabel.format">
-          <xsl:with-param name="format" select="$chapter.autolabel"/>
-        </xsl:call-template>
-      </xsl:variable>
-      <xsl:choose>
-        <xsl:when test="$label.from.part != 0 and ancestor::part">
-          <xsl:number from="part" count="chapter" format="{$format}" level="any"/>
-        </xsl:when>
-        <xsl:otherwise>
-          <!-- Optimization for pgsql-docs: When counting to get label for
-               this chapter, preceding chapters can only be our siblings or
-               children of a preceding part, so only count those instead of
-               scanning the entire node tree. -->
-          <!-- <xsl:number from="book" count="chapter" format="{$format}" level="any"/> -->
-          <xsl:number value="count(../preceding-sibling::part/chapter) + count(preceding-sibling::chapter) + 1" format="{$format}"/>
-        </xsl:otherwise>
-      </xsl:choose>
-    </xsl:when>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match="appendix" mode="label.markup">
-  <xsl:choose>
-    <xsl:when test="@label">
-      <xsl:value-of select="@label"/>
-    </xsl:when>
-    <xsl:when test="string($appendix.autolabel) != 0">
-      <xsl:if test="$component.label.includes.part.label != 0 and
-                      ancestor::part">
-        <xsl:variable name="part.label">
-          <xsl:apply-templates select="ancestor::part"
-                               mode="label.markup"/>
-        </xsl:variable>
-        <xsl:if test="$part.label != ''">
-          <xsl:value-of select="$part.label"/>
-          <xsl:apply-templates select="ancestor::part"
-                               mode="intralabel.punctuation">
-            <xsl:with-param name="object" select="."/>
-          </xsl:apply-templates>
-        </xsl:if>
-      </xsl:if>
-      <xsl:variable name="format">
-        <xsl:call-template name="autolabel.format">
-          <xsl:with-param name="format" select="$appendix.autolabel"/>
-        </xsl:call-template>
-      </xsl:variable>
-      <xsl:choose>
-        <xsl:when test="$label.from.part != 0 and ancestor::part">
-          <xsl:number from="part" count="appendix" format="{$format}" level="any"/>
-        </xsl:when>
-        <xsl:otherwise>
-          <!-- Optimization for pgsql-docs: When counting to get label for
-               this appendix, preceding appendixes can only be our siblings or
-               children of a preceding part, so only count those instead of
-               scanning the entire node tree. -->
-          <!-- <xsl:number from="book|article" count="appendix" format="{$format}" level="any"/> -->
-          <xsl:number value="count(../preceding-sibling::part/appendix) + count(preceding-sibling::appendix) + 1" format="{$format}"/>
-        </xsl:otherwise>
-      </xsl:choose>
-    </xsl:when>
-  </xsl:choose>
-</xsl:template>
-
-<!-- from common/l10n.xsl -->
-
-<!-- Just hardcode the language for the whole document, to make it faster. -->
-
-<xsl:template name="l10n.language">en</xsl:template>
-
-</xsl:stylesheet>

doc/stylesheet-speedup-xhtml.xsl

@@ -1,345 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                xmlns="http://www.w3.org/1999/xhtml"
-                version='1.0'>
-
-<!-- Performance-optimized versions of some upstream templates from xhtml/
-     directory -->
-
-<!-- from xhtml/autoidx.xsl -->
-
-<xsl:template match="indexterm" mode="reference">
-  <xsl:param name="scope" select="."/>
-  <xsl:param name="role" select="''"/>
-  <xsl:param name="type" select="''"/>
-  <xsl:param name="position"/>
-  <xsl:param name="separator" select="''"/>
-
-  <xsl:variable name="term.separator">
-    <xsl:call-template name="index.separator">
-      <xsl:with-param name="key" select="'index.term.separator'"/>
-    </xsl:call-template>
-  </xsl:variable>
-
-  <xsl:variable name="number.separator">
-    <xsl:call-template name="index.separator">
-      <xsl:with-param name="key" select="'index.number.separator'"/>
-    </xsl:call-template>
-  </xsl:variable>
-
-  <xsl:variable name="range.separator">
-    <xsl:call-template name="index.separator">
-      <xsl:with-param name="key" select="'index.range.separator'"/>
-    </xsl:call-template>
-  </xsl:variable>
-
-  <xsl:choose>
-    <xsl:when test="$separator != ''">
-      <xsl:value-of select="$separator"/>
-    </xsl:when>
-    <xsl:when test="$position = 1">
-      <xsl:value-of select="$term.separator"/>
-    </xsl:when>
-    <xsl:otherwise>
-      <xsl:value-of select="$number.separator"/>
-    </xsl:otherwise>
-  </xsl:choose>
-
-  <xsl:choose>
-    <xsl:when test="@zone and string(@zone)">
-      <xsl:call-template name="reference">
-        <xsl:with-param name="zones" select="normalize-space(@zone)"/>
-        <xsl:with-param name="position" select="position()"/>
-        <xsl:with-param name="scope" select="$scope"/>
-        <xsl:with-param name="role" select="$role"/>
-        <xsl:with-param name="type" select="$type"/>
-      </xsl:call-template>
-    </xsl:when>
-    <xsl:otherwise>
-      <a>
-        <xsl:apply-templates select="." mode="class.attribute"/>
-        <xsl:variable name="title">
-          <xsl:choose>
-            <xsl:when test="$index.prefer.titleabbrev != 0">
-              <xsl:apply-templates select="(ancestor-or-self::set|ancestor-or-self::book|ancestor-or-self::part|ancestor-or-self::reference|ancestor-or-self::partintro|ancestor-or-self::chapter|ancestor-or-self::appendix|ancestor-or-self::preface|ancestor-or-self::article|ancestor-or-self::section|ancestor-or-self::sect1|ancestor-or-self::sect2|ancestor-or-self::sect3|ancestor-or-self::sect4|ancestor-or-self::sect5|ancestor-or-self::refentry|ancestor-or-self::refsect1|ancestor-or-self::refsect2|ancestor-or-self::refsect3|ancestor-or-self::simplesect|ancestor-or-self::bibliography|ancestor-or-self::glossary|ancestor-or-self::index|ancestor-or-self::webpage|ancestor-or-self::topic)[last()]" mode="titleabbrev.markup"/>
-            </xsl:when>
-            <xsl:otherwise>
-              <xsl:apply-templates select="(ancestor-or-self::set|ancestor-or-self::book|ancestor-or-self::part|ancestor-or-self::reference|ancestor-or-self::partintro|ancestor-or-self::chapter|ancestor-or-self::appendix|ancestor-or-self::preface|ancestor-or-self::article|ancestor-or-self::section|ancestor-or-self::sect1|ancestor-or-self::sect2|ancestor-or-self::sect3|ancestor-or-self::sect4|ancestor-or-self::sect5|ancestor-or-self::refentry|ancestor-or-self::refsect1|ancestor-or-self::refsect2|ancestor-or-self::refsect3|ancestor-or-self::simplesect|ancestor-or-self::bibliography|ancestor-or-self::glossary|ancestor-or-self::index|ancestor-or-self::webpage|ancestor-or-self::topic)[last()]" mode="title.markup"/>
-            </xsl:otherwise>
-          </xsl:choose>
-        </xsl:variable>
-
-        <xsl:attribute name="href">
-          <xsl:choose>
-            <xsl:when test="$index.links.to.section = 1">
-              <xsl:call-template name="href.target">
-                <xsl:with-param name="object" select="(ancestor-or-self::set|ancestor-or-self::book|ancestor-or-self::part|ancestor-or-self::reference|ancestor-or-self::partintro|ancestor-or-self::chapter|ancestor-or-self::appendix|ancestor-or-self::preface|ancestor-or-self::article|ancestor-or-self::section|ancestor-or-self::sect1|ancestor-or-self::sect2|ancestor-or-self::sect3|ancestor-or-self::sect4|ancestor-or-self::sect5|ancestor-or-self::refentry|ancestor-or-self::refsect1|ancestor-or-self::refsect2|ancestor-or-self::refsect3|ancestor-or-self::simplesect|ancestor-or-self::bibliography|ancestor-or-self::glossary|ancestor-or-self::index|ancestor-or-self::webpage|ancestor-or-self::topic)[last()]"/>
-                <!-- Optimization for pgsql-docs: We only have an index as a
-                     child of book, so look that up directly instead of
-                     scanning the entire node tree.  Also, don't look for
-                     setindex. -->
-                <!-- <xsl:with-param name="context" select="(//index[count(ancestor::node()|$scope) = count(ancestor::node()) and ($role = @role or $type = @type or (string-length($role) = 0 and string-length($type) = 0))] | //setindex[count(ancestor::node()|$scope) = count(ancestor::node()) and ($role = @role or $type = @type or (string-length($role) = 0 and string-length($type) = 0))])[1]"/> -->
-                <xsl:with-param name="context" select="(/book/index[count(ancestor::node()|$scope) = count(ancestor::node()) and ($role = @role or $type = @type or (string-length($role) = 0 and string-length($type) = 0))])[1]"/>
-              </xsl:call-template>
-            </xsl:when>
-            <xsl:otherwise>
-              <xsl:call-template name="href.target">
-                <xsl:with-param name="object" select="."/>
-                <xsl:with-param name="context" select="(//index[count(ancestor::node()|$scope) = count(ancestor::node()) and ($role = @role or $type = @type or (string-length($role) = 0 and string-length($type) = 0))] | //setindex[count(ancestor::node()|$scope) = count(ancestor::node()) and ($role = @role or $type = @type or (string-length($role) = 0 and string-length($type) = 0))])[1]"/>
-              </xsl:call-template>
-            </xsl:otherwise>
-          </xsl:choose>
-
-        </xsl:attribute>
-
-        <xsl:value-of select="$title"/> <!-- text only -->
-      </a>
-
-      <xsl:variable name="id" select="(@id|@xml:id)[1]"/>
-      <xsl:if test="key('endofrange', $id)[count(ancestor::node()|$scope) = count(ancestor::node()) and ($role = @role or $type = @type or (string-length($role) = 0 and string-length($type) = 0))]">
-        <xsl:apply-templates select="key('endofrange', $id)[count(ancestor::node()|$scope) = count(ancestor::node()) and ($role = @role or $type = @type or (string-length($role) = 0 and string-length($type) = 0))][last()]" mode="reference">
-          <xsl:with-param name="position" select="position()"/>
-          <xsl:with-param name="scope" select="$scope"/>
-          <xsl:with-param name="role" select="$role"/>
-          <xsl:with-param name="type" select="$type"/>
-          <xsl:with-param name="separator" select="$range.separator"/>
-        </xsl:apply-templates>
-      </xsl:if>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template name="reference">
-  <xsl:param name="scope" select="."/>
-  <xsl:param name="role" select="''"/>
-  <xsl:param name="type" select="''"/>
-  <xsl:param name="zones"/>
-
-  <xsl:choose>
-    <xsl:when test="contains($zones, ' ')">
-      <xsl:variable name="zone" select="substring-before($zones, ' ')"/>
-      <xsl:variable name="target" select="key('sections', $zone)"/>
-
-      <a>
-        <xsl:apply-templates select="." mode="class.attribute"/>
-<!--    Optimization for pgsql-docs: this call adds nothing but fails with docbook-xsl 1.76 -->
-<!--    <xsl:call-template name="id.attribute"/> -->
-        <xsl:attribute name="href">
-          <xsl:call-template name="href.target">
-            <xsl:with-param name="object" select="$target[1]"/>
-            <xsl:with-param name="context" select="//index[count(ancestor::node()|$scope) = count(ancestor::node()) and ($role = @role or $type = @type or (string-length($role) = 0 and string-length($type) = 0))][1]"/>
-          </xsl:call-template>
-        </xsl:attribute>
-        <xsl:apply-templates select="$target[1]" mode="index-title-content"/>
-      </a>
-      <xsl:text>, </xsl:text>
-      <xsl:call-template name="reference">
-        <xsl:with-param name="zones" select="substring-after($zones, ' ')"/>
-        <xsl:with-param name="position" select="position()"/>
-        <xsl:with-param name="scope" select="$scope"/>
-        <xsl:with-param name="role" select="$role"/>
-        <xsl:with-param name="type" select="$type"/>
-      </xsl:call-template>
-    </xsl:when>
-    <xsl:otherwise>
-      <xsl:variable name="zone" select="$zones"/>
-      <xsl:variable name="target" select="key('sections', $zone)"/>
-
-      <a>
-        <xsl:apply-templates select="." mode="class.attribute"/>
-<!--    Optimization for pgsql-docs: this call adds nothing but fails with docbook-xsl 1.76 -->
-<!--    <xsl:call-template name="id.attribute"/> -->
-        <xsl:attribute name="href">
-          <xsl:call-template name="href.target">
-            <xsl:with-param name="object" select="$target[1]"/>
-            <!-- Optimization for pgsql-docs: Only look for index under book
-                 instead of searching the whole node tree. -->
-            <!-- <xsl:with-param name="context" select="//index[count(ancestor::node()|$scope) = count(ancestor::node()) and ($role = @role or $type = @type or (string-length($role) = 0 and string-length($type) = 0))][1]"/> -->
-            <xsl:with-param name="context" select="/book/index[count(ancestor::node()|$scope) = count(ancestor::node()) and ($role = @role or $type = @type or (string-length($role) = 0 and string-length($type) = 0))][1]"/>
-          </xsl:call-template>
-        </xsl:attribute>
-        <xsl:apply-templates select="$target[1]" mode="index-title-content"/>
-      </a>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-
-<!-- from xhtml/chunk-common.xsl -->
-
-<xsl:template name="chunk-all-sections">
-  <xsl:param name="content">
-    <xsl:apply-imports/>
-  </xsl:param>
-
-  <!-- Optimization for pgsql-docs: Since we set a fixed $chunk.section.depth,
-       we can do away with a bunch of complicated XPath searches for the
-       previous and next sections at various levels. -->
-
-  <xsl:if test="$chunk.section.depth != 1">
-    <xsl:message terminate="yes">
-      <xsl:text>Error: If you change $chunk.section.depth, then you must update the performance-optimized chunk-all-sections-template.</xsl:text>
-    </xsl:message>
-  </xsl:if>
-
-  <xsl:variable name="prev"
-    select="(preceding::book[1]
-             |preceding::preface[1]
-             |preceding::chapter[1]
-             |preceding::appendix[1]
-             |preceding::part[1]
-             |preceding::reference[1]
-             |preceding::refentry[1]
-             |preceding::colophon[1]
-             |preceding::article[1]
-             |preceding::topic[1]
-             |preceding::bibliography[parent::article or parent::book or parent::part][1]
-             |preceding::glossary[parent::article or parent::book or parent::part][1]
-             |preceding::index[$generate.index != 0]
-                               [parent::article or parent::book or parent::part][1]
-             |preceding::setindex[$generate.index != 0][1]
-             |ancestor::set
-             |ancestor::book[1]
-             |ancestor::preface[1]
-             |ancestor::chapter[1]
-             |ancestor::appendix[1]
-             |ancestor::part[1]
-             |ancestor::reference[1]
-             |ancestor::article[1]
-             |ancestor::topic[1]
-             |preceding::sect1[1]
-             |ancestor::sect1[1])[last()]"/>
-
-  <xsl:variable name="next"
-    select="(following::book[1]
-             |following::preface[1]
-             |following::chapter[1]
-             |following::appendix[1]
-             |following::part[1]
-             |following::reference[1]
-             |following::refentry[1]
-             |following::colophon[1]
-             |following::bibliography[parent::article or parent::book or parent::part][1]
-             |following::glossary[parent::article or parent::book or parent::part][1]
-             |following::index[$generate.index != 0]
-                               [parent::article or parent::book][1]
-             |following::article[1]
-             |following::topic[1]
-             |following::setindex[$generate.index != 0][1]
-             |descendant::book[1]
-             |descendant::preface[1]
-             |descendant::chapter[1]
-             |descendant::appendix[1]
-             |descendant::article[1]
-             |descendant::topic[1]
-             |descendant::bibliography[parent::article or parent::book][1]
-             |descendant::glossary[parent::article or parent::book or parent::part][1]
-             |descendant::index[$generate.index != 0]
-                                [parent::article or parent::book][1]
-             |descendant::colophon[1]
-             |descendant::setindex[$generate.index != 0][1]
-             |descendant::part[1]
-             |descendant::reference[1]
-             |descendant::refentry[1]
-             |following::sect1[1]
-             |descendant::sect1[1])[1]"/>
-
-  <xsl:call-template name="process-chunk">
-    <xsl:with-param name="prev" select="$prev"/>
-    <xsl:with-param name="next" select="$next"/>
-    <xsl:with-param name="content" select="$content"/>
-  </xsl:call-template>
-</xsl:template>
-
-<xsl:template name="href.target">
-  <xsl:param name="context" select="."/>
-  <xsl:param name="object" select="."/>
-  <xsl:param name="toc-context" select="."/>
-  <!-- Optimization for pgsql-docs: Remove support for dbhtml processing
-       instruction here -->
-  <xsl:variable name="href.to.uri">
-    <xsl:call-template name="href.target.uri">
-      <xsl:with-param name="object" select="$object"/>
-    </xsl:call-template>
-  </xsl:variable>
-  <xsl:variable name="href.from.uri">
-    <xsl:choose>
-      <xsl:when test="not($toc-context = .)">
-        <xsl:call-template name="href.target.uri">
-          <xsl:with-param name="object" select="$toc-context"/>
-        </xsl:call-template>
-      </xsl:when>
-      <xsl:otherwise>
-        <xsl:call-template name="href.target.uri">
-          <xsl:with-param name="object" select="$context"/>
-        </xsl:call-template>
-      </xsl:otherwise>
-    </xsl:choose>
-  </xsl:variable>
-  <xsl:variable name="href.to">
-    <xsl:value-of select="$href.to.uri"/>
-  </xsl:variable>
-  <xsl:variable name="href.from">
-    <xsl:call-template name="trim.common.uri.paths">
-      <xsl:with-param name="uriA" select="$href.to.uri"/>
-      <xsl:with-param name="uriB" select="$href.from.uri"/>
-      <xsl:with-param name="return" select="'B'"/>
-    </xsl:call-template>
-  </xsl:variable>
-  <xsl:variable name="depth">
-    <xsl:call-template name="count.uri.path.depth">
-      <xsl:with-param name="filename" select="$href.from"/>
-    </xsl:call-template>
-  </xsl:variable>
-  <xsl:variable name="href">
-    <xsl:call-template name="copy-string">
-      <xsl:with-param name="string" select="'../'"/>
-      <xsl:with-param name="count" select="$depth"/>
-    </xsl:call-template>
-    <xsl:value-of select="$href.to"/>
-  </xsl:variable>
-  <xsl:value-of select="$href"/>
-</xsl:template>
-
-<xsl:template name="html.head">
-  <xsl:param name="prev" select="/foo"/>
-  <xsl:param name="next" select="/foo"/>
-
-  <!-- Optimization for pgsql-docs: Cut out a bunch of things we don't need
-       here, including an expensive //legalnotice search. -->
-
-  <head>
-    <xsl:call-template name="system.head.content"/>
-    <xsl:call-template name="head.content"/>
-
-    <xsl:if test="$prev">
-      <link rel="prev">
-        <xsl:attribute name="href">
-          <xsl:call-template name="href.target">
-            <xsl:with-param name="object" select="$prev"/>
-          </xsl:call-template>
-        </xsl:attribute>
-        <xsl:attribute name="title">
-          <xsl:apply-templates select="$prev" mode="object.title.markup.textonly"/>
-        </xsl:attribute>
-      </link>
-    </xsl:if>
-
-    <xsl:if test="$next">
-      <link rel="next">
-        <xsl:attribute name="href">
-          <xsl:call-template name="href.target">
-            <xsl:with-param name="object" select="$next"/>
-          </xsl:call-template>
-        </xsl:attribute>
-        <xsl:attribute name="title">
-          <xsl:apply-templates select="$next" mode="object.title.markup.textonly"/>
-        </xsl:attribute>
-      </link>
-    </xsl:if>
-
-    <xsl:call-template name="user.head.content"/>
-  </head>
-</xsl:template>
-
-</xsl:stylesheet>

doc/stylesheet.css

@@ -1,471 +1,96 @@
-/* PostgreSQL.org Documentation Style */
+/* doc/src/sgml/stylesheet.css */
 
-@import 'website-docs.css';
+/* color scheme similar to www.postgresql.org */
 
-/* requires global.css, table.css and text.css to be loaded before this file! */
-body {
-  font-family: verdana, sans-serif;
-  font-size: 76%;
-  background: url("/resources/background.png") repeat-x scroll left top transparent;
-  padding: 15px 4%;
-  margin: 0;
+BODY {
+	color: #000000;
+	background: #FFFFFF;
+	font-family: verdana, sans-serif;
 }
 
-/* monospace font size fix */
-pre, code, kbd, samp, tt {
-  font-family: monospace,monospace;
-  font-size: 1em;
-}
-
-div.NAVHEADER table {
-  margin-left: 0;
-}
-
-/* Container Definitions */
-
-#docContainerWrap {
-  text-align: center; /* Win IE5 */
-}
-
-#docContainer {
-  margin: 0 auto;
-  width: 90%;
-  padding-bottom: 2em;
-  display: block;
-  text-align: left; /* Win IE5 */
-}
-
-#docHeader {
-  background-image: url("/media/img/docs/bg_hdr.png");
-  height: 83px;
-  margin: 0px;
-  padding: 0px;
-  display: block;
-}
-
-#docHeaderLogo {
-  position: relative;
-  width: 206px;
-  height: 83px;
-  border: 0px;
-  padding: 0px;
-  margin: 0 0 0 20px;
-}
-
-#docHeaderLogo img {
-  border: 0px;
-}
-
-#docNavSearchContainer {
-  padding-bottom: 2px;
-}
-
-#docNav, #docVersions {
-  position: relative;
-  text-align: left;
-  margin-left: 10px;
-  margin-top: 5px;
-  color: #666;
-  font-size: 0.95em;
-}
-
-#docSearch {
-  position: relative;
-  text-align: right;
-  padding: 0;
-  margin: 0;
-  color: #666;
-}
-
-#docTextSize {
-  text-align: right;
-  white-space: nowrap;
-  margin-top: 7px;
-  font-size: 0.95em;
-}
-
-#docSearch form {
-  position: relative;
-  top: 5px;
-  right: 0;
-  margin: 0; /* need for IE 5.5 OSX */
-  text-align: right; /* need for IE 5.5 OSX */
-  white-space: nowrap; /* for Opera */
-}
-
-#docSearch form label {
-  color: #666;
-  font-size: 0.95em;
-}
-
-#docSearch form input {
-  font-size: 0.95em;
-}
-  
-#docSearch form #submit {
-  font-size: 0.95em;
-  background: #7A7A7A;
-  color: #fff;
-  border: 1px solid #7A7A7A;
-  padding: 1px 4px;
-}
-  
-#docSearch form #q {
-  width: 170px;
-  font-size: 0.95em;
-  border:  1px solid #7A7A7A;
-  background: #E1E1E1;
-  color: #000000;
-  padding: 2px;
-}
-
-.frmDocSearch {
-  padding: 0;
-  margin: 0;
-  display: inline;
-}
-
-.inpDocSearch {
-  padding: 0;
-  margin: 0;
-  color: #000;
-}
-
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+A:link		{ color:#0066A2; }
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 }
 
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-#docContainer tt pre {
-  font-size: 1em;
-}
+/* center some titles */
 
-pre.LITERALLAYOUT,
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+.BOOK .TITLE, .BOOK .CORPAUTHOR, .BOOK .COPYRIGHT {
+	text-align: center;
 }
 
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+/* decoration for formal examples */
 
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+/* less dense spacing of TOC */
 
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+	padding-top: 1.5ex;
+	padding-bottom: 1.5ex;
 }
 
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+.BOOK .TOC DL DL DT {
+	padding-top: 0ex;
+	padding-bottom: 0ex;
 }
 
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-  -webkit-box-shadow: none;
-  -khtml-box-shadow: none;
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+/* miscellaneous */
 
-.emphasis,
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 }
 
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-{
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-  background-color: #FFD7D7;
-  border-color: #DF421E;
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+.COMMENT	{ color: red; }
 
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-a:link,
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-
-a:link,
-a:active {
-  color:#0066A2;
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-div.header {
-    color: #444;
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-    background-image: url("/resources/footerl.png"), url("/resources/footerr.png"), url("/resources/footerc.png");
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-    background-repeat: no-repeat, no-repeat, repeat-x;
-    padding-top: 45px;
-}
-
-img {
-    border-style: none;
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+VAR		{ font-family: monospace; font-style: italic; }
+/* Konqueror's standard style for ACRONYM is italic. */
+ACRONYM		{ font-style: inherit; }

doc/stylesheet.xsl

@@ -1,174 +0,0 @@
-<?xml version='1.0'?>
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                version='1.0'
-                xmlns="http://www.w3.org/TR/xhtml1/transitional"
-                exclude-result-prefixes="#default">
-
-<xsl:import href="http://docbook.sourceforge.net/release/xsl/current/xhtml/chunk.xsl"/>
-<xsl:include href="stylesheet-common.xsl" />
-<xsl:include href="stylesheet-html-common.xsl" />
-<xsl:include href="stylesheet-speedup-xhtml.xsl" />
-
-
-<!-- Parameters -->
-<xsl:param name="base.dir" select="'html/'"></xsl:param>
-<xsl:param name="use.id.as.filename" select="'1'"></xsl:param>
-<xsl:param name="generate.legalnotice.link" select="1"></xsl:param>
-<xsl:param name="chunk.first.sections" select="1"/>
-<xsl:param name="chunk.quietly" select="1"></xsl:param>
-<xsl:param name="admon.style"></xsl:param>  <!-- handled by CSS stylesheet -->
-
-<xsl:param name="website.stylesheet" select="0"/>
-
-<xsl:param name="html.stylesheet">
-  <xsl:choose>
-    <xsl:when test="$website.stylesheet = 0">stylesheet.css</xsl:when>
-    <xsl:otherwise>https://www.postgresql.org/media/css/docs.css</xsl:otherwise>
-  </xsl:choose>
-</xsl:param>
-
-
-<!-- strip directory name from image filerefs -->
-<xsl:template match="imagedata/@fileref">
- <xsl:value-of select="substring-after(., '/')"/>
-</xsl:template>
-
-
-<!--
-Customization of header
-- add Up and Home links
-- add tool tips to links
-
-(overrides html/chunk-common.xsl)
--->
-<xsl:template name="header.navigation">
-  <xsl:param name="prev" select="/foo"/>
-  <xsl:param name="next" select="/foo"/>
-  <xsl:param name="nav.context"/>
-
-  <xsl:variable name="home" select="/*[1]"/>
-  <xsl:variable name="up" select="parent::*"/>
-
-  <xsl:variable name="row1" select="$navig.showtitles != 0"/>
-  <xsl:variable name="row2" select="count($prev) &gt; 0
-                                    or (count($up) &gt; 0
-                                        and generate-id($up) != generate-id($home)
-                                        and $navig.showtitles != 0)
-                                    or count($next) &gt; 0"/>
-
-  <xsl:if test="$suppress.navigation = '0' and $suppress.header.navigation = '0'">
-    <div class="navheader">
-      <xsl:if test="$row1 or $row2">
-        <table width="100%" summary="Navigation header">
-          <xsl:if test="$row1">
-            <tr>
-              <th colspan="5" align="center">
-                <xsl:apply-templates select="." mode="object.title.markup"/>
-              </th>
-            </tr>
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-
-          <xsl:if test="$row2">
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-                      <xsl:call-template name="href.target">
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-                    <xsl:call-template name="navig.content">
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-                <xsl:text>&#160;</xsl:text>
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-                <xsl:choose>
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-                                  and generate-id($up) != generate-id($home)">
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-                          <xsl:with-param name="object" select="$up"/>
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-                      <xsl:attribute name="title">
-                        <xsl:apply-templates select="$up" mode="object.title.markup"/>
-                      </xsl:attribute>
-                      <xsl:call-template name="navig.content">
-                        <xsl:with-param name="direction" select="'up'"/>
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-                  </xsl:when>
-                  <xsl:otherwise>&#160;</xsl:otherwise>
-                </xsl:choose>
-              </td>
-              <th width="60%" align="center">
-                <xsl:choose>
-                  <xsl:when test="count($up) > 0
-                                  and generate-id($up) != generate-id($home)
-                                  and $navig.showtitles != 0">
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-                    </a>
-                    <xsl:if test="$chunk.tocs.and.lots != 0 and $nav.context != 'toc'">
-                      <xsl:text>&#160;|&#160;</xsl:text>
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doc/switchover.sgml

@@ -1,10 +1,10 @@
 <chapter id="performing-switchover" xreflabel="Performing a switchover with repmgr">
- <title>Performing a switchover with repmgr</title>
 
  <indexterm>
   <primary>switchover</primary>
  </indexterm>
 
+ <title>Performing a switchover with repmgr</title>
  <para>
   A typical use-case for replication is a combination of primary and standby
   server, with the standby serving as a backup which can easily be activated
@@ -15,7 +15,7 @@
  <para>
   In some cases however it's desirable to promote the standby in a planned
   way, e.g. so maintenance can be performed on the primary; this kind of switchover
-  is supported by the <xref linkend="repmgr-standby-switchover"/> command.
+  is supported by the <xref linkend="repmgr-standby-switchover"> command.
  </para>
  <para>
   <command>repmgr standby switchover</command> differs from other &repmgr;
@@ -44,18 +44,17 @@
     and capturing all output to assist troubleshooting any problems.
   </simpara>
   <simpara>
-   Please also read carefully the sections <xref linkend="preparing-for-switchover"/> and
-   <xref linkend="switchover-caveats"/> below.
+   Please also read carefully the sections <xref linkend="preparing-for-switchover"> and
+   <xref linkend="switchover-caveats"> below.
   </simpara>
  </note>
 
  <sect1 id="preparing-for-switchover" xreflabel="Preparing for switchover">
-   <title>Preparing for switchover</title>
-
    <indexterm>
      <primary>switchover</primary>
      <secondary>preparation</secondary>
    </indexterm>
+   <title>Preparing for switchover</title>
 
    <para>
     As mentioned in the previous section, success of the switchover operation depends on
@@ -73,8 +72,7 @@
      Ensure that a passwordless SSH connection is possible from the promotion candidate
      (standby) to the demotion candidate (current primary). If <literal>--siblings-follow</literal>
      will be used, ensure that passwordless SSH connections are possible from the
-     promotion candidate to all nodes attached to the demotion candidate
-     (including the witness server, if in use).
+     promotion candidate to all standbys attached to the demotion candidate.
    </para>
 
    <note>
@@ -115,7 +113,7 @@
        server.
      </para>
      <para>
-       For more details, see <xref linkend="configuration-file-service-commands"/>.
+       For more details, see <xref linkend="configuration-file-service-commands">.
      </para>
    </important>
 
@@ -139,8 +137,8 @@
 
    <note>
      <para>
-       If an exclusive backup is running on the current primary, or if WAL replay is paused on the standby,
-       &repmgr; will <emphasis>not</emphasis> perform the switchover.
+       If an exclusive backup is running on the current primary, &repmgr; will not perform the
+       switchover.
      </para>
    </note>
 
@@ -160,12 +158,12 @@
     <note>
       <para>
         From <link linkend="release-4.2">repmgr 4.2</link>, &repmgr; will instruct any running
-        &repmgrd; instances to pause operations while the switchover
-        is being carried out, to prevent &repmgrd; from
-        unintentionally promoting a node. For more details, see <xref linkend="repmgrd-pausing"/>.
+        <application>repmgrd</application> instances to pause operations while the switchover
+        is being carried out, to prevent <application>repmgrd</application> from
+        unintentionally promoting a node. For more details, see <xref linkend="repmgrd-pausing">.
       </para>
       <para>
-        Users of &repmgr; versions prior to 4.2 should ensure that &repmgrd;
+        Users of &repmgr; versions prior to 4.2 should ensure that <application>repmgrd</application>
         is not running on any nodes while a switchover is being executed.
       </para>
     </note>
@@ -205,19 +203,18 @@
 
    <note>
      <simpara>
-       See <xref linkend="repmgr-standby-switchover"/> for a full list of available
+       See <xref linkend="repmgr-standby-switchover"> for a full list of available
        command line options and <filename>repmgr.conf</filename> settings relevant
        to performing a switchover.
      </simpara>
    </note>
 
-   <sect2 id="switchover-pg-rewind" xreflabel="Switchover and pg_rewind">
-    <title>Switchover and pg_rewind</title>
-
+  <sect2 id="switchover-pg-rewind" xreflabel="Switchover and pg_rewind">
     <indexterm>
       <primary>pg_rewind</primary>
       <secondary>using with "repmgr standby switchover"</secondary>
     </indexterm>
+    <title>Switchover and pg_rewind</title>
     <para>
       If the demotion candidate does not shut down smoothly or cleanly, there's a risk it
       will have a slightly divergent timeline and will not be able to attach to the new
@@ -239,7 +236,7 @@
     </note>
     <para>
       For more details on <application>pg_rewind</application>, see:
-      <ulink url="https://www.postgresql.org/docs/current/app-pgrewind.html">https://www.postgresql.org/docs/current/app-pgrewind.html</ulink>.
+      <ulink url="https://www.postgresql.org/docs/current/static/app-pgrewind.html">https://www.postgresql.org/docs/current/static/app-pgrewind.html</ulink>.
     </para>
     <para>
       <application>pg_rewind</application> has been part of the core PostgreSQL distribution since
@@ -260,12 +257,11 @@
  </sect1>
 
  <sect1 id="switchover-execution" xreflabel="Executing the switchover command">
-  <title>Executing the switchover command</title>
-
   <indexterm>
    <primary>switchover</primary>
     <secondary>execution</secondary>
   </indexterm>
+  <title>Executing the switchover command</title>
   <para>
    To demonstrate switchover, we will assume a replication cluster with a
    primary (<literal>node1</literal>) and one standby (<literal>node2</literal>);
@@ -316,13 +312,13 @@
    </programlisting>
   </para>
   <para>
-    If &repmgrd; is in use, it's worth double-checking that
+    If <application>repmgrd</application> is in use, it's worth double-checking that
     all nodes are unpaused by executing <command><link linkend="repmgr-daemon-status">repmgr-daemon-status</link></command>.
   </para>
 
    <note>
      <para>
-       Users of &repmgr; versions prior to 4.2 will need to manually restart &repmgrd;
+       Users of &repmgr; versions prior to 4.2 will need to manually restart <application>repmgrd</application>
        on all nodes after the switchover is completed.
      </para>
     </note>
@@ -331,11 +327,11 @@
 
 
  <sect1 id="switchover-caveats" xreflabel="Caveats">
-  <title>Caveats</title>
   <indexterm>
    <primary>switchover</primary>
     <secondary>caveats</secondary>
   </indexterm>
+  <title>Caveats</title>
   <para>
    <itemizedlist spacing="compact" mark="bullet">
     <listitem>
@@ -351,7 +347,7 @@
      <simpara>
       <command>pg_rewind</command> *requires* that either <varname>wal_log_hints</varname> is enabled, or that
       data checksums were enabled when the cluster was initialized. See the
-      <ulink url="https://www.postgresql.org/docs/current/app-pgrewind.html">pg_rewind documentation</ulink>
+      <ulink url="https://www.postgresql.org/docs/current/static/app-pgrewind.html">pg_rewind documentation</ulink>
       for details.
      </simpara>
     </listitem>
@@ -360,12 +356,11 @@
  </sect1>
 
  <sect1 id="switchover-troubleshooting" xreflabel="Troubleshooting">
-   <title>Troubleshooting switchover issues</title>
-
    <indexterm>
      <primary>switchover</primary>
      <secondary>troubleshooting</secondary>
    </indexterm>
+   <title>Troubleshooting switchover issues</title>
 
    <para>
      As <link linkend="performing-switchover">emphasised previously</link>, performing a switchover
@@ -423,7 +418,7 @@ HINT: stop backup before attempting the switchover</programlisting>
        To proceed, either wait until the backup has finished, or cancel it with the command
        <command>SELECT pg_stop_backup()</command>. For more details see the PostgreSQL
        documentation section
-       <ulink url="https://www.postgresql.org/docs/current/continuous-archiving.html#BACKUP-LOWLEVEL-BASE-BACKUP-EXCLUSIVE">Making an exclusive low level backup</ulink>.
+       <ulink url="https://www.postgresql.org/docs/current/static/continuous-archiving.html#BACKUP-LOWLEVEL-BASE-BACKUP-EXCLUSIVE">Making an exclusive low level backup</ulink>.
      </para>
    </sect2>
  </sect1>

doc/upgrading-repmgr.sgml

@@ -1,10 +1,10 @@
 <chapter id="upgrading-repmgr" xreflabel="Upgrading repmgr">
- <title>Upgrading repmgr</title>
 
  <indexterm>
   <primary>upgrading</primary>
  </indexterm>
 
+ <title>Upgrading repmgr</title>
 
  <para>
   &repmgr; is updated regularly with minor releases (e.g. 4.0.1 to 4.0.2)
@@ -13,19 +13,18 @@
  </para>
 
  <sect1 id="upgrading-repmgr-extension" xreflabel="Upgrading repmgr 4.x and later">
-  <title>Upgrading repmgr 4.x and later</title>
-
   <indexterm>
    <primary>upgrading</primary>
    <secondary>repmgr 4.x and later</secondary>
   </indexterm>
+  <title>Upgrading repmgr 4.x and later</title>
   <para>
     From version 4, &repmgr; consists of three elements:
      <itemizedlist spacing="compact" mark="bullet">
 
        <listitem>
          <simpara>
-           the <application>repmgr</application> and &repmgrd; executables
+           the <application>repmgr</application> and <application>repmgrd</application> executables
          </simpara>
        </listitem>
 
@@ -38,7 +37,7 @@
 
        <listitem>
          <simpara>
-           the shared library module used by &repmgrd; which
+           the shared library module used by <application>repmgrd</application> which
            is resident in the PostgreSQL backend
          </simpara>
        </listitem>
@@ -46,8 +45,8 @@
   </para>
   <para>
     With <emphasis>minor releases</emphasis>, usually changes are only made to the <application>repmgr</application>
-    and &repmgrd; executables. In this case, the upgrade is quite straightforward,
-    and is simply a case of installing the new version, and restarting &repmgrd;
+    and <application>repmgrd</application> executables. In this case, the upgrade is quite straightforward,
+    and is simply a case of installing the new version, and restarting <application>repmgrd</application>
     (if running).
   </para>
 
@@ -64,12 +63,11 @@
   </important>
 
   <sect2 id="upgrading-minor-version" xreflabel="Upgrading a minor version release">
-	<title>Upgrading a minor version release</title>
-
 	<indexterm>
 	  <primary>upgrading</primary>
 	  <secondary>minor release</secondary>
 	</indexterm>
+	<title>Upgrading a minor version release</title>
 
     <para>
       The process for installing minor version upgrades is quite straightforward:
@@ -84,7 +82,7 @@
 
         <listitem>
           <simpara>
-            restart &repmgrd; on all nodes where it is running
+            restart <application>repmgrd</application> on all nodes where it is running
           </simpara>
         </listitem>
 
@@ -95,7 +93,7 @@
     <note>
 	  <para>
         Some packaging systems (e.g. <link linkend="packages-debian-ubuntu">Debian/Ubuntu</link>
-        may restart &repmgrd; as part of the package upgrade process.
+        may restart <application>repmgrd</application> as part of the package upgrade process.
       </para>
     </note>
 
@@ -120,17 +118,15 @@
   </sect2>
 
   <sect2 id="upgrading-major-version" xreflabel="Upgrading a major version release">
-	<title>Upgrading a major version release</title>
-
 	<indexterm>
 	  <primary>upgrading</primary>
 	  <secondary>major release</secondary>
 	</indexterm>
-
+	<title>Upgrading a major version release</title>
 	<para>
 	  &quot;major version&quot; upgrades need to be planned more carefully, as they may include
 	  changes to the &repmgr; metadata (which need to be propagated from the primary to all
-	  standbys) and/or changes to the shared object file used by &repmgrd;
+	  standbys) and/or changes to the shared object file used by <application>repmgrd</application>
 	  (which require a PostgreSQL restart).
 	</para>
 	<para>
@@ -142,14 +138,14 @@
 
 		<listitem>
           <simpara>
-			Stop &repmgrd; (if in use) on all nodes where it is running.
+			Stop <application>repmgrd</application> (if in use) on all nodes where it is running.
           </simpara>
 		</listitem>
 
 		<listitem>
           <simpara>
-			Disable the &repmgrd; service on all nodes where it is in use;
-            this is to prevent packages from prematurely restarting &repmgrd;.
+			Disable the <application>repmgrd</application> service on all nodes where it is in use;
+            this is to prevent packages from prematurely restarting <application>repmgrd</application>.
           </simpara>
 		</listitem>
 
@@ -171,12 +167,12 @@ systemctl daemon-reload</programlisting>
 		<listitem>
           <simpara>
 			If the &repmgr; shared library module has been updated (check the <link linkend="appendix-release-notes">release notes</link>!),
-            restart PostgreSQL, then &repmgrd; (if in use)	on each node,
+            restart PostgreSQL, then <application>repmgrd</application> (if in use)	on each node,
             The order in which this is applied to individual nodes is not critical,
-			and it's also fine to restart PostgreSQL on all nodes first before starting &repmgrd;.
+			and it's also fine to restart PostgreSQL on all nodes first before starting <application>repmgrd</application>.
 		  </simpara>
 		  <simpara>
-			Note that if the upgrade requires a PostgreSQL restart, &repmgrd;
+			Note that if the upgrade requires a PostgreSQL restart, <application>repmgrd</application>
 			will only function correctly once all nodes have been restarted.
           </simpara>
 		</listitem>
@@ -192,7 +188,7 @@ ALTER EXTENSION repmgr UPDATE</programlisting>
 
 		<listitem>
           <simpara>
-			Reenable the &repmgrd; service on all nodes where it is in use, and
+			Reenable the <application>repmgrd</application> service on all nodes where it is in use, and
             ensure it is running.
           </simpara>
 		</listitem>
@@ -209,22 +205,19 @@ ALTER EXTENSION repmgr UPDATE</programlisting>
   </sect2>
 
   <sect2 id="upgrading-check-repmgrd" xreflabel="Checking repmgrd status after an upgrade">
-	<title>Checking repmgrd status after an upgrade</title>
-
 	<indexterm>
 	  <primary>upgrading</primary>
 	  <secondary>checking repmgrd status</secondary>
 	</indexterm>
+	<title>Checking repmgrd status after an upgrade</title>
 	<para>
       From <link linkend="release-4.2">repmgr 4.2</link>, once the upgrade is complete, execute the <command><link linkend="repmgr-daemon-status">repmgr daemon status</link></command>
-      command (on any node) to show an overview of the status of &repmgrd; on all nodes.
+      command (on any node) to show an overview of the status of <application>repmgrd</application> on all nodes.
     </para>
   </sect2>
  </sect1>
 
  <sect1 id="upgrading-and-pg-upgrade" xreflabel="pg_upgrade and repmgr">
-  <title>pg_upgrade and repmgr</title>
-
   <indexterm>
    <primary>upgrading</primary>
    <secondary>pg_upgrade</secondary>
@@ -232,6 +225,7 @@ ALTER EXTENSION repmgr UPDATE</programlisting>
   <indexterm>
     <primary>pg_upgrade</primary>
   </indexterm>
+  <title>pg_upgrade and repmgr</title>
 
   <para>
     <application>pg_upgrade</application> requires that if any functions are
@@ -253,7 +247,7 @@ ALTER EXTENSION repmgr UPDATE</programlisting>
     </simpara>
   </note>
   <para>
-    For further details please see the <ulink url="https://www.postgresql.org/docs/current/pgupgrade.html">pg_upgrade documentation</ulink>.
+    For further details please see the <ulink url="https://www.postgresql.org/docs/current/static/pgupgrade.html">pg_upgrade documentation</ulink>.
   </para>
   <para>
     If replication slots are in use, bear in mind these will <emphasis>not</emphasis>
@@ -271,13 +265,12 @@ ALTER EXTENSION repmgr UPDATE</programlisting>
 
 
  <sect1 id="upgrading-from-repmgr-3" xreflabel="Upgrading from repmgr 3.x">
-  <title>Upgrading from repmgr 3.x</title>
-
   <indexterm>
    <primary>upgrading</primary>
    <secondary>from repmgr 3.x</secondary>
   </indexterm>
 
+  <title>Upgrading from repmgr 3.x</title>
   <para>
    The upgrade process consists of two steps:
    <orderedlist>
@@ -339,7 +332,7 @@ ALTER EXTENSION repmgr UPDATE</programlisting>
       </listitem>
       <listitem>
         <simpara><varname>monitoring_history</varname>: this replaces the
-          &repmgrd; command line option
+          <application>repmgrd</application> command line option
           <literal>--monitoring-history</literal></simpara>
       </listitem>
      </itemizedlist>
@@ -390,7 +383,7 @@ ALTER EXTENSION repmgr UPDATE</programlisting>
         to the server configured in Barman (in &repmgr; 3, the deprecated
         <literal>cluster</literal> parameter was used for this);
         the physical Barman hostname is configured with
-        <literal>barman_host</literal> (see <xref linkend="cloning-from-barman-prerequisites"/>
+        <literal>barman_host</literal> (see <xref linkend="cloning-from-barman-prerequisites">
           for details).
       </para>
     </note>
@@ -440,7 +433,7 @@ ALTER EXTENSION repmgr UPDATE</programlisting>
   <sect2>
    <title>Upgrading the repmgr schema</title>
    <para>
-    Ensure &repmgrd; is not running, or any cron jobs which execute the
+    Ensure <application>repmgrd</application> is not running, or any cron jobs which execute the
     <command>repmgr</command> binary.
    </para>
    <para>
@@ -506,7 +499,7 @@ ALTER EXTENSION repmgr UPDATE</programlisting>
     </para>
     <para>
      Check the data is updated as expected by examining the <structname>repmgr.nodes</structname>
-     table; restart &repmgrd; if required.
+     table; restart <application>repmgrd</application> if required.
     </para>
     <para>
      The original <literal>repmgr_$cluster</literal> schema can be dropped at any time.

doc/version.sgml

@@ -0,0 +1 @@
+<!ENTITY repmgrversion "4.2">