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32 Commits

Author SHA1 Message Date
Ian Barwick
abe55e60e6 doc: update 5.2.1 release notes 2020-12-04 14:50:04 +09:00
Ian Barwick
220bcbd620 Minor string formatting optimization 2020-12-04 10:18:05 +09:00
Ian Barwick
e824dfd499 standby clone: tweak error message
Probably a remnant from the 9.1 era, where it was not possible to
take a base backup from a standby.
2020-12-04 10:18:02 +09:00
Ian Barwick
9fb9decf13 Fix return value of pg_reload_conf() database utility function
Would always return "false", but as the value wasn't used anywhere,
the issue was inconsequential.

However while we're at it, actually check the return value in the
two places it's called, to help diagnose any issues in the unlikely
event they occur.

Per issue reported via GitHub PR #671 from user duzhgg.
2020-12-02 09:27:14 +09:00
Ian Barwick
ad6dde4218 doc: update README
- remove partial sentence
- remove links to very dated blog entries
2020-12-02 09:26:06 +09:00
Ian Barwick
7cbaec6469 doc: update README
Link to release notes as a simple way of providing the latest release
information.
2020-12-02 09:25:59 +09:00
Ian Barwick
9d2c5921ee Add missing connection close
In a corner-case situation where a standby is unable to attach to
the new primary due to a mismatch in the WAL stream, the connection
used to verify the recovery status of the new primary was not being
closed, leading to a risk of connection exhaustion on the new primary.

Addresses GitHub #682.
2020-12-02 09:23:00 +09:00
Ian Barwick
21f94e6de3 doc: tweak "repmgr standby clone" reference
As recovery.conf starts to fade away, mention that last.
2020-12-02 09:22:49 +09:00
Ian Barwick
7418c7b8f0 Fix typo 2020-12-02 09:22:38 +09:00
Ian Barwick
7cee09dd95 standby clone: fix data directory permissions handling for Pg11 and later
Previously, repmgr would forcibly change the permissions on a data
directory to 0700. However from PostgreSQL 11, 0750 is also valid,
so that value should not be changed.
2020-12-01 11:49:13 +09:00
Ian Barwick
53774d6998 Bump version to 5.2.1 2020-11-30 17:33:42 +09:00
Ian Barwick
5a251ef268 standby clone: add --recovery-min-apply-delay to help output 2020-11-30 16:43:17 +09:00
Ian Barwick
b83ce6b147 doc: update 5.2.1 release notes 2020-11-30 16:14:37 +09:00
Ian Barwick
5f9f1f65ae repmgrd: fix issue with incorrect reconnect_interval
Addresses GitHub #673.
2020-11-25 20:42:29 +09:00
Ian Barwick
9d7eebef1b Update Makefile
We don't actually need $(LIBS) in there; this was cargo-culted in
from somewhere.
2020-11-24 17:37:54 +09:00
Ian Barwick
5cff7fab64 Avoid compiler warnings for various strncpy() operations
Here the compiler may complain that the source length is being used,
though in all cases the source length was previously used to
define the length of the destination buffer, so it's not actually
a problem.
2020-11-24 15:42:54 +09:00
Ian Barwick
2a8ac36aec repmgr: prevent termination in corner-case situation
If neither the local node nor the upstream are available, and
"standby_disconnect_on_failover" is set, attempting to fetch
the walreceiver PID will result in repmgrd terminating.

Add a check that the connection is valid before attempting to
fetch the walreceiver PID.

Addresses GitHub #675.
2020-11-17 16:35:03 +09:00
Ian Barwick
a5a5b506f9 standby clone: various clarifications for --replication-conf-only option
In particular, the emitted HINT was not really appropriate for Pg13 and
later.
2020-11-17 10:01:30 +09:00
Ian Barwick
bd6871817d Update corner-case error message
Not possible to build repmgr compatible with Pg12+ against Pg11
and earlier due to the addition of FullTransactionId.
2020-11-17 10:01:26 +09:00
Ian Barwick
bd35e503ec standby clone: add option --recovery-min-apply-delay
This overrides the equivalent setting in repmgr.conf, if present.

Note this option was available in repmgr versions prior to 4.0, but
was assumed to be redundant. However recently a use-case was made
for its reintroduction.
2020-11-10 16:05:14 +09:00
Romain Jacquier
15801b8f9e Fix help witness
Fix the `repmgr witness --help` command where at the "Unregister" section the message shown was
```
"witness register" unregisters a witness node.
```
instead of
```
"witness unregister" unregisters a witness node.
```

GitHub #676.
2020-11-09 13:35:23 +09:00
Ian Barwick
4d3262d306 standby clone: handle missing "postgresql.auto.conf"
In PostgreSQL 12 and later we need to append replication configuration
to "postgresql.auto.conf" to guarantee it will be read last, and hence
override any preceding replication configuration which may be haunting
the configuration files.

We've been assuming that "postgresql.auto.conf" will always be present,
but at least one corner case has been observed where that was not the
case on the node being cloned from. Moreover it's perfectly acceptable
that this file does not exist (it will be recreated the next time
ALTER SYSTEM is executed), so we should be prepared to handle that case.

In passing, improve handling of more unlikely errors which might be
encountered when processing "postgresql.auto.conf".
2020-10-30 12:26:56 +09:00
Ian Barwick
36a8dfcf4f Standardize code style 2020-10-30 11:06:46 +09:00
Ian Barwick
94612a336a config: fix parsing of "replication_type"
This is a legacy parameter which can currently only contain one value,
"physical" (the default).

It can be safely omitted.

Addresses GitHub #672.
2020-10-30 10:17:03 +09:00
Ian Barwick
de567d584f doc: update README 2020-10-22 21:21:16 +09:00
Ian Barwick
0fb3432398 Finalize release date 2020-10-22 17:15:37 +09:00
Ian Barwick
5e59e543d6 Additional fix to upgrade script
Drop old "repl_events" table.
2020-10-22 12:36:31 +09:00
Ian Barwick
4f6b642320 Fix extension script for unpackaged upgrades to 5.2
Apparently "ALTER TABLE" (which we were using to convert the
"repl_events" table) does not mark the table as being part of the
extension. Instead, we need to create the new table and copy the
data, as is done with the other tables.
2020-10-22 11:18:03 +09:00
Ian Barwick
c1973438f7 doc: add missing "unpackaged" reference 2020-10-21 17:31:22 +09:00
Ian Barwick
fe5904e04e standby clone: improve Barman source server check
Use "remote_command()" to execute the remote psql command, and
provide the -X option to psql to ensure it doesn't read ~/.psqlrc.
2020-10-20 17:21:17 +09:00
Ian Barwick
2cb1f4f728 doc: update release notes 2020-10-20 14:05:25 +09:00
Ian Barwick
5b90842c55 Bump version to 5.2.0
Also update the minimum version check to PostgreSQL 9.4.
2020-10-20 13:34:16 +09:00
94 changed files with 858 additions and 3090 deletions

View File

@@ -2,7 +2,7 @@ License and Contributions
=========================
`repmgr` is licensed under the GPL v3. All of its code and documentation is
Copyright 2010-2021, EnterpriseDB Corporation. See the files COPYRIGHT and LICENSE for
Copyright 2010-2020, 2ndQuadrant Limited. See the files COPYRIGHT and LICENSE for
details.
The development of repmgr has primarily been sponsored by 2ndQuadrant customers.
@@ -12,10 +12,10 @@ which has received funding from the European Union's Seventh Framework Programme
(FP7/2007-2013) under grant agreement 258862.
Contributions to `repmgr` are welcome, and will be listed in the file `CREDITS`.
EnterpriseDB Corporation requires that any contributions provide a copyright
2ndQuadrant Limited requires that any contributions provide a copyright
assignment and a disclaimer of any work-for-hire ownership claims from the
employer of the developer. This lets us make sure that all of the repmgr
distribution remains free code. Please contact info@enterprise.com for a
distribution remains free code. Please contact info@2ndQuadrant.com for a
copy of the relevant Copyright Assignment Form.
Code style

View File

@@ -1,4 +1,4 @@
Copyright (c) 2010-2021, EnterpriseDB Corporation
Copyright (c) 2010-2020, 2ndQuadrant Limited
All rights reserved.
This program is free software: you can redistribute it and/or modify

2
FAQ.md
View File

@@ -5,6 +5,6 @@ The repmgr 4 FAQ is located here: [repmgr FAQ (Frequently Asked Questions)](http
The repmgr 3.x FAQ can be found here:
https://github.com/EnterpriseDB/repmgr/blob/REL3_3_STABLE/FAQ.md
https://github.com/2ndQuadrant/repmgr/blob/REL3_3_STABLE/FAQ.md
Note that repmgr 3.x is no longer supported.

33
HISTORY
View File

@@ -1,31 +1,4 @@
5.3.3 2022-10-17
Support for PostgreSQL added
repmgrd: ensure event notification script is called for event
"repmgrd_upstream_disconnect"; GitHub #760 (Ian)
5.3.2 2022-05-25
standby clone: don't error out if unable to determine cluster size (Ian)
node check: fix --downstream --nagios output; GitHub #749 (Ian)
repmgrd: ensure witness node marked active (hslightdb)
repmgrd: improve walsender disable check (Ian)
general: ensure replication slots can be dropped by a
replication-only user (Ian)
5.3.1 2022-02-15
repmgrd: fixes for potential connection leaks (hslightdb)
repmgr: fix upgrade path from repmgr 4.2 and 4.3 to repmgr 5.3 (Ian)
5.3.0 2021-10-12
standby switchover: improve handling of node rejoin failure (Ian)
repmgrd: prefix all shared library functions with "repmgr_" to
minimize the risk of clashes with other shared libraries (Ian)
repmgrd: at startup, if node record is marked as "inactive", attempt
to set it to "active" (Ian)
standby clone: set "slot_name" in node record if required (Ian)
node rejoin: emit rejoin target note information as NOTICE (Ian)
repmgrd: ensure short option "-s" is accepted (Ian)
5.2.1 2020-12-07
5.2.1 2020-??-??
config: fix parsing of "replication_type"; GitHub #672 (Ian)
standby clone: handle missing "postgresql.auto.conf" (Ian)
standby clone: add option --recovery-min-apply-delay (Ian)
@@ -70,11 +43,11 @@
repmgr: ensure postgresql.auto.conf is created with correct permissions (Ian)
repmgr: minimize requirement to check upstream data directory location
during "standby clone" (Ian)
repmgr: warn about missing pg_rewind prerequisites when executing
repmgr: warn about missing pg_rewind prerequisites when excuting
"standby clone" (Ian)
repmgr: add --upstream option to "node check"
repmgr: report error code on follow/rejoin failure due to non-available
replication slot (Ian)
0 replication slot (Ian)
repmgr: ensure "node rejoin" checks for available replication slots (Ian)
repmgr: improve "standby switchover" completion checks (Ian)
repmgr: add replication configuration file ownership check to

View File

@@ -22,7 +22,7 @@ GIT_WORK_TREE=${repmgr_abs_srcdir}
GIT_DIR=${repmgr_abs_srcdir}/.git
export GIT_DIR
export GIT_WORK_TREE
PG_LDFLAGS=-lcurl -ljson-c
include $(PGXS)
-include ${repmgr_abs_srcdir}/Makefile.custom

View File

@@ -13,7 +13,6 @@ DATA = \
repmgr--unpackaged--4.0.sql \
repmgr--unpackaged--5.1.sql \
repmgr--unpackaged--5.2.sql \
repmgr--unpackaged--5.3.sql \
repmgr--4.0.sql \
repmgr--4.0--4.1.sql \
repmgr--4.1.sql \
@@ -28,11 +27,7 @@ DATA = \
repmgr--5.0--5.1.sql \
repmgr--5.1.sql \
repmgr--5.1--5.2.sql \
repmgr--5.2.sql \
repmgr--5.2--5.3.sql \
repmgr--5.3.sql \
repmgr--5.3--5.4.sql \
repmgr--5.4.sql
repmgr--5.2.sql
REGRESS = repmgr_extension
@@ -66,7 +61,7 @@ REPMGR_CLIENT_OBJS = repmgr-client.o \
repmgr-action-primary.o repmgr-action-standby.o repmgr-action-witness.o \
repmgr-action-cluster.o repmgr-action-node.o repmgr-action-service.o repmgr-action-daemon.o \
configdata.o configfile.o configfile-scan.o log.o strutil.o controldata.o dirutil.o compat.o \
dbutils.o sysutils.o pgbackupapi.o
dbutils.o sysutils.o
REPMGRD_OBJS = repmgrd.o repmgrd-physical.o configdata.o configfile.o configfile-scan.o log.o \
dbutils.o strutil.o controldata.o compat.o sysutils.o
@@ -81,10 +76,10 @@ configfile-scan.c: configfile-scan.l
$(REPMGR_CLIENT_OBJS): repmgr-client.h repmgr_version.h
repmgr: $(REPMGR_CLIENT_OBJS)
$(CC) $(CFLAGS) $(REPMGR_CLIENT_OBJS) $(libpq_pgport) $(LDFLAGS) $(LDFLAGS_EX) $(LIBS) -o $@$(X)
$(CC) $(CFLAGS) $(REPMGR_CLIENT_OBJS) $(libpq_pgport) $(LDFLAGS) $(LDFLAGS_EX) -o $@$(X)
repmgrd: $(REPMGRD_OBJS)
$(CC) $(CFLAGS) $(REPMGRD_OBJS) $(libpq_pgport) $(LDFLAGS) $(LDFLAGS_EX) $(LIBS) -o $@$(X)
$(CC) $(CFLAGS) $(REPMGRD_OBJS) $(libpq_pgport) $(LDFLAGS) $(LDFLAGS_EX) -o $@$(X)
$(REPMGR_CLIENT_OBJS): $(HEADERS)
$(REPMGRD_OBJS): $(HEADERS)

View File

@@ -7,10 +7,10 @@ replication capabilities with utilities to set up standby servers, monitor
replication, and perform administrative tasks such as failover or switchover
operations.
The most recent `repmgr` version (5.3.2) supports all PostgreSQL versions from
9.5 to 14. PostgreSQL 9.4 is also supported, with some restrictions.
The most recent `repmgr` version (5.2.0) supports all PostgreSQL versions from
9.5 to 13. PostgreSQL 9.4 is also supported, with some restrictions.
`repmgr` is distributed under the GNU GPL 3 and maintained by EnterpriseDB.
`repmgr` is distributed under the GNU GPL 3 and maintained by 2ndQuadrant.
Documentation
-------------
@@ -19,6 +19,14 @@ The full `repmgr` documentation is available here:
> [repmgr documentation](https://repmgr.org/docs/current/index.html)
The old `README` file for `repmgr` 3.x is available here:
> https://github.com/2ndQuadrant/repmgr/blob/REL3_3_STABLE/README.md
Note that the `repmgr` 3.x series is no longer supported and contains known bugs;
please upgrade to the [current repmgr version](https://repmgr.org/docs/current/appendix-release-notes.html)
as soon as possible.
Versions
--------
@@ -47,11 +55,11 @@ Directories
Support and Assistance
----------------------
EnterpriseDB provides 24x7 production support for `repmgr`, including
2ndQuadrant provides 24x7 production support for `repmgr`, including
configuration assistance, installation verification and training for
running a robust replication cluster. For further details see:
* [EDB Support Services](https://www.enterprisedb.com/support/postgresql-support-overview-get-the-most-out-of-postgresql)
* https://2ndquadrant.com/en/support/
There is a mailing list/forum to discuss contributions or issues:
@@ -61,12 +69,21 @@ The IRC channel #repmgr is registered with freenode.
Please report bugs and other issues to:
* https://github.com/EnterpriseDB/repmgr
* https://github.com/2ndQuadrant/repmgr
Further information is available at https://repmgr.org/
We'd love to hear from you about how you use repmgr. Case studies and
news are always welcome.
news are always welcome. Send us an email at info@2ndQuadrant.com, or
send a postcard to
repmgr
c/o 2ndQuadrant
7200 The Quorum
Oxford Business Park North
Oxford
OX4 2JZ
United Kingdom
Thanks from the repmgr core team.
@@ -82,4 +99,3 @@ Further reading
* [repmgr documentation](https://repmgr.org/docs/current/index.html)
* [How to Automate PostgreSQL 12 Replication and Failover with repmgr - Part 1](https://www.2ndquadrant.com/en/blog/how-to-automate-postgresql-12-replication-and-failover-with-repmgr-part-1/)
* [How to Automate PostgreSQL 12 Replication and Failover with repmgr - Part 2](https://www.2ndquadrant.com/en/blog/how-to-automate-postgresql-12-replication-and-failover-with-repmgr-part-2/)
* [How to implement repmgr for PostgreSQL automatic failover](https://www.enterprisedb.com/postgres-tutorials/how-implement-repmgr-postgresql-automatic-failover)

View File

@@ -1,7 +1,7 @@
TODO
====
This file contains a list of improvements which are desirable and/or have
This file contains a list of improvements which are desireable and/or have
been requested, and which we aim to address/implement when time and resources
permit.
@@ -17,4 +17,4 @@ repmgrd nodes to prevent unintended failover; this is obviously inconvenient.
We'll need to implement some way of notifying each repmgrd to suspend automatic
failover until further notice.
Requested in GitHub #410 ( https://github.com/EnterpriseDB/repmgr/issues/410 )
Requested in GitHub #410 ( https://github.com/2ndQuadrant/repmgr/issues/410 )

View File

@@ -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) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California

View File

@@ -1,6 +1,6 @@
/*
* compat.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California

View File

@@ -1,7 +1,7 @@
/*
* configdata.c - contains structs with parsed configuration data
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -291,46 +291,6 @@ struct ConfigFileSetting config_file_settings[] =
{},
{}
},
/* pg_backupapi_backup_id*/
{
"pg_backupapi_backup_id",
CONFIG_STRING,
{ .strptr = config_file_options.pg_backupapi_backup_id },
{ .strdefault = "" },
{},
{ .strmaxlen = sizeof(config_file_options.pg_backupapi_backup_id) },
{}
},
/* pg_backupapi_host*/
{
"pg_backupapi_host",
CONFIG_STRING,
{ .strptr = config_file_options.pg_backupapi_host },
{ .strdefault = "" },
{},
{ .strmaxlen = sizeof(config_file_options.pg_backupapi_host) },
{}
},
/* pg_backupapi_node_name */
{
"pg_backupapi_node_name",
CONFIG_STRING,
{ .strptr = config_file_options.pg_backupapi_node_name },
{ .strdefault = "" },
{},
{ .strmaxlen = sizeof(config_file_options.pg_backupapi_node_name) },
{}
},
/* pg_backupapi_remote_ssh_command */
{
"pg_backupapi_remote_ssh_command",
CONFIG_STRING,
{ .strptr = config_file_options.pg_backupapi_remote_ssh_command },
{ .strdefault = "" },
{},
{ .strmaxlen = sizeof(config_file_options.pg_backupapi_remote_ssh_command) },
{}
},
/* =======================
* standby follow settings
@@ -621,16 +581,6 @@ struct ConfigFileSetting config_file_settings[] =
{ .strmaxlen = sizeof(config_file_options.repmgrd_pid_file) },
{ .postprocess_func = &repmgr_canonicalize_path }
},
/* repmgrd_exit_on_inactive_node */
{
"repmgrd_exit_on_inactive_node",
CONFIG_BOOL,
{ .boolptr = &config_file_options.repmgrd_exit_on_inactive_node},
{ .booldefault = DEFAULT_REPMGRD_EXIT_ON_INACTIVE_NODE },
{},
{},
{}
},
/* standby_disconnect_on_failover */
{
"standby_disconnect_on_failover",

View File

@@ -1,7 +1,7 @@
/*
* configfile.c - parse repmgr.conf and other configuration-related functionality
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -1889,7 +1889,7 @@ modify_auto_conf(const char *data_dir, KeyValueList *items)
/*
* Note: durable_rename() is not exposed to frontend code before Pg 10.
* We only really need to be modifying postgresql.auto.conf from Pg 12,
* but provide backwards compatibility for Pg 9.6 and earlier for the
* but provide backwards compatibitilty for Pg 9.6 and earlier for the
* (unlikely) event that a repmgr built against one of those versions
* is being used against Pg 12 and later.
*/

View File

@@ -1,7 +1,7 @@
/*
* configfile.h
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
*
* This program is free software: you can redistribute it and/or modify
@@ -164,10 +164,6 @@ typedef struct
char archive_cleanup_command[MAXLEN];
bool use_primary_conninfo_password;
char passfile[MAXPGPATH];
char pg_backupapi_backup_id[NAMEDATALEN];
char pg_backupapi_host[NAMEDATALEN];
char pg_backupapi_node_name[NAMEDATALEN];
char pg_backupapi_remote_ssh_command[MAXLEN];
/* standby promote settings */
int promote_check_timeout;
@@ -210,7 +206,6 @@ typedef struct
int primary_notification_timeout;
int repmgrd_standby_startup_timeout;
char repmgrd_pid_file[MAXPGPATH];
bool repmgrd_exit_on_inactive_node;
bool standby_disconnect_on_failover;
int sibling_nodes_disconnect_timeout;
ConnectionCheckType connection_check_type;
@@ -254,7 +249,7 @@ typedef struct
/*
* undocumented settings
*
* These settings are for testing or experimental features
* These settings are for testing or experimential features
* and may be changed without notice.
*/

28
configure vendored
View File

@@ -1,6 +1,6 @@
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.69 for repmgr 5.4.0.
# Generated by GNU Autoconf 2.69 for repmgr 5.2.1.
#
# Report bugs to <repmgr@googlegroups.com>.
#
@@ -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) 2010-2021, EnterpriseDB Corporation
# Copyright (c) 2010-2020, 2ndQuadrant Ltd.
## -------------------- ##
## M4sh Initialization. ##
## -------------------- ##
@@ -582,8 +582,8 @@ MAKEFLAGS=
# Identity of this package.
PACKAGE_NAME='repmgr'
PACKAGE_TARNAME='repmgr'
PACKAGE_VERSION='5.4.0'
PACKAGE_STRING='repmgr 5.4.0'
PACKAGE_VERSION='5.2.1'
PACKAGE_STRING='repmgr 5.2.1'
PACKAGE_BUGREPORT='repmgr@googlegroups.com'
PACKAGE_URL='https://repmgr.org/'
@@ -1181,7 +1181,7 @@ 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 5.4.0 to adapt to many kinds of systems.
\`configure' configures repmgr 5.2.1 to adapt to many kinds of systems.
Usage: $0 [OPTION]... [VAR=VALUE]...
@@ -1242,7 +1242,7 @@ fi
if test -n "$ac_init_help"; then
case $ac_init_help in
short | recursive ) echo "Configuration of repmgr 5.4.0:";;
short | recursive ) echo "Configuration of repmgr 5.2.1:";;
esac
cat <<\_ACEOF
@@ -1316,14 +1316,14 @@ fi
test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
cat <<\_ACEOF
repmgr configure 5.4.0
repmgr configure 5.2.1
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) 2010-2021, EnterpriseDB Corporation
Copyright (c) 2010-2020, 2ndQuadrant Ltd.
_ACEOF
exit
fi
@@ -1335,7 +1335,7 @@ 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 5.4.0, which was
It was created by repmgr $as_me 5.2.1, which was
generated by GNU Autoconf 2.69. Invocation command line was
$ $0 $@
@@ -1811,11 +1811,11 @@ fi
pgac_pg_config_version=$($PG_CONFIG --version 2>/dev/null)
major_version_num=$(echo "$pgac_pg_config_version"|
$SED -e 's/^[^0-9]\+ \([0-9]\{1,2\}\).*$/\1/')
$SED -e 's/^PostgreSQL \([0-9]\{1,2\}\).*$/\1/')
if test "$major_version_num" -lt '10'; then
version_num=$(echo "$pgac_pg_config_version"|
$SED -e 's/^[^0-9]\+ \([0-9]*\)\.\([0-9]*\)\([a-zA-Z0-9.]*\)$/\1.\2/')
$SED -e 's/^PostgreSQL \([0-9]*\)\.\([0-9]*\)\([a-zA-Z0-9.]*\)$/\1.\2/')
if test -z "$version_num"; then
as_fn_error $? "could not detect the PostgreSQL version, wrong or broken pg_config?" "$LINENO" 5
@@ -1829,7 +1829,7 @@ if test "$major_version_num" -lt '10'; then
fi
else
version_num=$(echo "$pgac_pg_config_version"|
$SED -e 's/^[^0-9]\+ \(.\+\)$/\1/')
$SED -e 's/^PostgreSQL \(.\+\)$/\1/')
if test -z "$version_num"; then
as_fn_error $? "could not detect the PostgreSQL version, wrong or broken pg_config?" "$LINENO" 5
@@ -2487,7 +2487,7 @@ 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 5.4.0, which was
This file was extended by repmgr $as_me 5.2.1, which was
generated by GNU Autoconf 2.69. Invocation command line was
CONFIG_FILES = $CONFIG_FILES
@@ -2550,7 +2550,7 @@ _ACEOF
cat >>$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 5.4.0
repmgr config.status 5.2.1
configured by $0, generated by GNU Autoconf 2.69,
with options \\"\$ac_cs_config\\"

View File

@@ -1,6 +1,6 @@
AC_INIT([repmgr], [5.4.0], [repmgr@googlegroups.com], [repmgr], [https://repmgr.org/])
AC_INIT([repmgr], [5.2.1], [repmgr@googlegroups.com], [repmgr], [https://repmgr.org/])
AC_COPYRIGHT([Copyright (c) 2010-2021, EnterpriseDB Corporation])
AC_COPYRIGHT([Copyright (c) 2010-2020, 2ndQuadrant Ltd.])
AC_CONFIG_HEADER(config.h)
@@ -19,11 +19,11 @@ fi
pgac_pg_config_version=$($PG_CONFIG --version 2>/dev/null)
major_version_num=$(echo "$pgac_pg_config_version"|
$SED -e 's/^[[^0-9]]\+ \([[0-9]]\{1,2\}\).*$/\1/')
$SED -e 's/^PostgreSQL \([[0-9]]\{1,2\}\).*$/\1/')
if test "$major_version_num" -lt '10'; then
version_num=$(echo "$pgac_pg_config_version"|
$SED -e 's/^[[^0-9]]\+ \([[0-9]]*\)\.\([[0-9]]*\)\([[a-zA-Z0-9.]]*\)$/\1.\2/')
$SED -e 's/^PostgreSQL \([[0-9]]*\)\.\([[0-9]]*\)\([[a-zA-Z0-9.]]*\)$/\1.\2/')
if test -z "$version_num"; then
AC_MSG_ERROR([could not detect the PostgreSQL version, wrong or broken pg_config?])
@@ -37,7 +37,7 @@ if test "$major_version_num" -lt '10'; then
fi
else
version_num=$(echo "$pgac_pg_config_version"|
$SED -e 's/^[[^0-9]]\+ \(.\+\)$/\1/')
$SED -e 's/^PostgreSQL \(.\+\)$/\1/')
if test -z "$version_num"; then
AC_MSG_ERROR([could not detect the PostgreSQL version, wrong or broken pg_config?])
@@ -60,7 +60,6 @@ AC_SUBST(vpath_build)
AC_CHECK_PROG(HAVE_GNUSED,gnused,yes,no)
AC_CHECK_PROG(HAVE_GSED,gsed,yes,no)
AC_CHECK_PROG(HAVE_SED,sed,yes,no)
AC_CHECK_PROG(HAVE_FLEX,flex,yes,no)
if test "$HAVE_GNUSED" = yes; then
SED=gnused
@@ -73,25 +72,6 @@ else
fi
AC_SUBST(SED)
AS_IF([test x"$HAVE_FLEX" != x"yes"], AC_MSG_ERROR([flex should be installed first]))
#Checking libraries
GENERIC_LIB_FAILED_MSG="library should be installed"
AC_CHECK_LIB(selinux, is_selinux_enabled, [],
[AC_MSG_ERROR(['selinux' $GENERIC_LIB_FAILED_MSG])])
AC_CHECK_LIB(lz4, LZ4_compress_default, [],
[AC_MSG_ERROR(['Z4' $GENERIC_LIB_FAILED_MSG])])
AC_CHECK_LIB(xslt, xsltCleanupGlobals, [],
[AC_MSG_ERROR(['xslt' $GENERIC_LIB_FAILED_MSG])])
AC_CHECK_LIB(pam, pam_start, [],
[AC_MSG_ERROR(['pam' $GENERIC_LIB_FAILED_MSG])])
AC_CHECK_LIB(gssapi_krb5, gss_init_sec_context, [],
[AC_MSG_ERROR([gssapi_krb5 $GENERIC_LIB_FAILED_MSG])])
AC_CONFIG_FILES([Makefile])
AC_CONFIG_FILES([Makefile.global])

View File

@@ -2,11 +2,11 @@
* controldata.c - functions for reading the pg_control file
*
* The functions provided here enable repmgr to read a pg_control file
* in a version-independent way, even if the PostgreSQL instance is not
* 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) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California

View File

@@ -1,6 +1,6 @@
/*
* controldata.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California

185
dbutils.c
View File

@@ -1,7 +1,7 @@
/*
* dbutils.c - Database connection/management functions
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
*
* This program is free software: you can redistribute it and/or modify
@@ -61,8 +61,6 @@ static ReplSlotStatus _verify_replication_slot(PGconn *conn, char *slot_name, PQ
static bool _create_event(PGconn *conn, t_configuration_options *options, int node_id, char *event, bool successful, char *details, t_event_info *event_info, bool send_notification);
static NodeAttached _is_downstream_node_attached(PGconn *conn, char *node_name, char **node_state, bool quiet);
/*
* This provides a standardized way of logging database errors. Note
* that the provided PGconn can be a normal or a replication connection;
@@ -732,8 +730,6 @@ validate_conninfo_string(const char *conninfo_str, char **errmsg)
if (connOptions == NULL)
return false;
PQconninfoFree(connOptions);
return true;
}
@@ -1291,16 +1287,21 @@ get_cluster_size(PGconn *conn, char *size)
initPQExpBuffer(&query);
appendPQExpBufferStr(&query,
"SELECT pg_catalog.pg_size_pretty(pg_catalog.sum(pg_catalog.pg_database_size(oid))::bigint) "
" FROM pg_catalog.pg_database ");
" FROM pg_catalog.pg_database ");
log_verbose(LOG_DEBUG, "get_cluster_size():\n%s", query.data);
res = PQexec(conn, query.data);
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
log_db_error(conn, query.data, _("get_cluster_size(): unable to execute query"));
success = false;
}
else
{
snprintf(size, MAXLEN, "%s", PQgetvalue(res, 0, 0));
}
termPQExpBuffer(&query);
PQclear(res);
@@ -1823,30 +1824,6 @@ get_timeline_history(PGconn *repl_conn, TimeLineID tli)
}
pid_t
get_wal_receiver_pid(PGconn *conn)
{
PGresult *res = NULL;
pid_t wal_receiver_pid = UNKNOWN_PID;
res = PQexec(conn, "SELECT repmgr.get_wal_receiver_pid()");
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
log_error(_("unable to execute \"SELECT repmgr.get_wal_receiver_pid()\""));
log_detail("%s", PQerrorMessage(conn));
}
else if (!PQgetisnull(res, 0, 0))
{
wal_receiver_pid = atoi(PQgetvalue(res, 0, 0));
}
PQclear(res);
return wal_receiver_pid;
}
/* =============================== */
/* user/role information functions */
/* =============================== */
@@ -1888,42 +1865,6 @@ can_execute_pg_promote(PGconn *conn)
}
/*
* Determine if the user associated with the current connection
* has sufficient permissions to disable the walsender
*/
bool
can_disable_walsender(PGconn *conn)
{
/*
* Requires PostgreSQL 9.5 or later, because ALTER SYSTEM
*/
if (PQserverVersion(conn) < 90500)
{
log_warning(_("\"standby_disconnect_on_failover\" specified, but not available for this PostgreSQL version"));
/* TODO: format server version */
log_detail(_("available from PostgreSQL 9.5; this PostgreSQL version is %i"), PQserverVersion(conn));
return false;
}
/*
* Superusers can do anything
*/
if (is_superuser_connection(conn, NULL) == true)
return true;
/*
* As of PostgreSQL 14, it is not possible for a non-superuser
* to execute ALTER SYSTEM, so further checks are superfluous.
* This will need modifying for PostgreSQL 15.
*/
log_warning(_("\"standby_disconnect_on_failover\" specified, but repmgr user is not a superuser"));
log_detail(_("superuser permission required to disable standbys on failover"));
return false;
}
/*
* Determine if the user associated with the current connection is
* a member of the "pg_monitor" default role, or optionally one
@@ -2139,13 +2080,7 @@ server_in_exclusive_backup_mode(PGconn *conn)
{
BackupState backup_state = BACKUP_STATE_UNKNOWN;
const char *sqlquery = "SELECT pg_catalog.pg_is_in_backup()";
PGresult *res = NULL;
/* Exclusive backup removed from PostgreSQL 15 */
if (PQserverVersion(conn) >= 150000)
return BACKUP_STATE_NO_BACKUP;
res = PQexec(conn, sqlquery);
PGresult *res = PQexec(conn, sqlquery);
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
@@ -2309,6 +2244,29 @@ repmgrd_pause(PGconn *conn, bool pause)
return success;
}
pid_t
get_wal_receiver_pid(PGconn *conn)
{
PGresult *res = NULL;
pid_t wal_receiver_pid = UNKNOWN_PID;
res = PQexec(conn, "SELECT repmgr.get_wal_receiver_pid()");
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
log_error(_("unable to execute \"SELECT repmgr.get_wal_receiver_pid()\""));
log_detail("%s", PQerrorMessage(conn));
}
else if (!PQgetisnull(res, 0, 0))
{
wal_receiver_pid = atoi(PQgetvalue(res, 0, 0));
}
PQclear(res);
return wal_receiver_pid;
}
int
repmgrd_get_upstream_node_id(PGconn *conn)
@@ -4282,7 +4240,7 @@ _create_event(PGconn *conn, t_configuration_options *options, int node_id, char
}
break;
case 'p':
/* %p: primary id ("standby_switchover"/"repmgrd_failover_promote": former primary id) */
/* %p: primary id ("standby_switchover": former primary id) */
src_ptr++;
if (event_info->node_id != UNKNOWN_NODE_ID)
{
@@ -4616,17 +4574,17 @@ drop_replication_slot_replprot(PGconn *repl_conn, char *slot_name)
initPQExpBuffer(&query);
appendPQExpBuffer(&query,
"DROP_REPLICATION_SLOT %s;",
"DROP_REPLICATION_SLOT %s",
slot_name);
log_verbose(LOG_DEBUG, "drop_replication_slot_replprot():\n %s", query.data);
res = PQexec(repl_conn, query.data);
if (PQresultStatus(res) != PGRES_TUPLES_OK || !PQntuples(res))
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
log_db_error(repl_conn, query.data,
_("drop_replication_slot_replprot(): unable to drop replication slot \"%s\""),
_("drop_replication_slot_sql(): unable to drop replication slot \"%s\""),
slot_name);
success = false;
@@ -4867,7 +4825,7 @@ cancel_query(PGconn *conn, int timeout)
* Wait until current query finishes, ignoring any results.
* Usually this will be an async query or query cancellation.
*
* Returns 1 for success; 0 if any error occurred; -1 if timeout reached.
* Returns 1 for success; 0 if any error ocurred; -1 if timeout reached.
*/
int
wait_connection_availability(PGconn *conn, int timeout)
@@ -5744,7 +5702,7 @@ get_node_timeline(PGconn *conn, char *timeline_id_str)
TimeLineID timeline_id = UNKNOWN_TIMELINE_ID;
/*
* pg_control_checkpoint() was introduced in PostgreSQL 9.6
* PG_control_checkpoint() was introduced in PostgreSQL 9.6
*/
if (PQserverVersion(conn) >= 90600)
{
@@ -5832,19 +5790,6 @@ get_node_replication_stats(PGconn *conn, t_node_info *node_info)
NodeAttached
is_downstream_node_attached(PGconn *conn, char *node_name, char **node_state)
{
return _is_downstream_node_attached(conn, node_name, node_state, false);
}
NodeAttached
is_downstream_node_attached_quiet(PGconn *conn, char *node_name, char **node_state)
{
return _is_downstream_node_attached(conn, node_name, node_state, true);
}
NodeAttached
_is_downstream_node_attached(PGconn *conn, char *node_name, char **node_state, bool quiet)
{
PQExpBufferData query;
PGresult *res = NULL;
@@ -5879,12 +5824,9 @@ _is_downstream_node_attached(PGconn *conn, char *node_name, char **node_state, b
*/
if (PQntuples(res) > 1)
{
if (quiet == false)
{
log_error(_("multiple entries with \"application_name\" set to \"%s\" found in \"pg_stat_replication\""),
node_name);
log_hint(_("verify that a unique node name is configured for each node"));
}
log_error(_("multiple entries with \"application_name\" set to \"%s\" found in \"pg_stat_replication\""),
node_name);
log_hint(_("verify that a unique node name is configured for each node"));
PQclear(res);
@@ -5893,8 +5835,7 @@ _is_downstream_node_attached(PGconn *conn, char *node_name, char **node_state, b
if (PQntuples(res) == 0)
{
if (quiet == false)
log_warning(_("node \"%s\" not found in \"pg_stat_replication\""), node_name);
log_warning(_("node \"%s\" not found in \"pg_stat_replication\""), node_name);
PQclear(res);
@@ -5920,10 +5861,9 @@ _is_downstream_node_attached(PGconn *conn, char *node_name, char **node_state, b
if (strcmp(state, "streaming") != 0)
{
if (quiet == false)
log_warning(_("node \"%s\" attached in state \"%s\""),
node_name,
state);
log_warning(_("node \"%s\" attached in state \"%s\""),
node_name,
state);
PQclear(res);
@@ -6066,43 +6006,6 @@ is_wal_replay_paused(PGconn *conn, bool check_pending_wal)
return is_paused;
}
/* repmgrd status functions */
CheckStatus
get_repmgrd_status(PGconn *conn)
{
PQExpBufferData query;
PGresult *res = NULL;
CheckStatus repmgrd_status = CHECK_STATUS_CRITICAL;
initPQExpBuffer(&query);
appendPQExpBufferStr(&query,
" SELECT "
" CASE "
" WHEN repmgr.repmgrd_is_running() "
" THEN "
" CASE "
" WHEN repmgr.repmgrd_is_paused() THEN 1 ELSE 0 "
" END "
" ELSE 2 "
" END AS repmgrd_status");
res = PQexec(conn, query.data);
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
log_db_error(conn, query.data, _("unable to execute repmgrd status query"));
}
else
{
repmgrd_status = atoi(PQgetvalue(res, 0, 0));
}
termPQExpBuffer(&query);
PQclear(res);
return repmgrd_status;
}
/* miscellaneous debugging functions */

View File

@@ -1,7 +1,7 @@
/*
* dbutils.h
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -450,11 +450,9 @@ 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);
pid_t get_wal_receiver_pid(PGconn *conn);
/* user/role information functions */
bool can_execute_pg_promote(PGconn *conn);
bool can_disable_walsender(PGconn *conn);
bool connection_has_pg_monitor_role(PGconn *conn, const char *subrole);
bool is_replication_role(PGconn *conn, char *rolname);
bool is_superuser_connection(PGconn *conn, t_connection_user *userinfo);
@@ -469,6 +467,7 @@ 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);
@@ -598,15 +597,11 @@ int get_replication_lag_seconds(PGconn *conn);
TimeLineID get_node_timeline(PGconn *conn, char *timeline_id_str);
void get_node_replication_stats(PGconn *conn, t_node_info *node_info);
NodeAttached is_downstream_node_attached(PGconn *conn, char *node_name, char **node_state);
NodeAttached is_downstream_node_attached_quiet(PGconn *conn, char *node_name, char **node_state);
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);
/* repmgrd status functions */
CheckStatus get_repmgrd_status(PGconn *conn);
/* miscellaneous debugging functions */
const char *print_node_status(NodeStatus node_status);
const char *print_pqping_status(PGPing ping_status);

View File

@@ -3,7 +3,7 @@
* dirmod.c
* directory handling functions
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -205,7 +205,7 @@ mkdir_p(char *path, mode_t omode)
/*
* POSIX 1003.2: For each dir operand that does not name an
* existing directory, effects equivalent to those caused by the
* following command shall occur:
* following command shall occcur:
*
* mkdir -p -m $(umask -S),u+wx $(dirname dir) && mkdir [-m mode]
* dir
@@ -289,7 +289,7 @@ is_pg_running(const char *path)
{
/*
* No PID file - PostgreSQL shouldn't be running. From 9.3 (the
* earliest version we care about) removal of the PID file will
* earliesty version we care about) removal of the PID file will
* cause the postmaster to shut down, so it's highly unlikely
* that PostgreSQL will still be running.
*/

View File

@@ -1,6 +1,6 @@
/*
* dirutil.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -95,7 +95,6 @@ clean:
rm -f repmgr.html
rm -f repmgr-A4.pdf
rm -f repmgr-US.pdf
rm -f *.fo
rm -f html/*
maintainer-clean:

View File

@@ -62,7 +62,7 @@
<tip>
<para>
Our recommended configuration is to configure
2ndQuadrant's recommended configuration is to configure
<ulink url="https://www.pgbarman.org/">Barman</ulink> as a fallback
source of WAL files, rather than maintain replication slots for
each standby. See also: <link linkend="cloning-from-barman-restore-command">Using Barman as a WAL file source</link>.
@@ -127,7 +127,7 @@
filesystem layouts.
</para>
<para>
Either use PostgreSQL packages provided by the community or EnterpriseDB; if this
Either use PostgreSQL packages provided by the community or 2ndQuadrant; if this
is not possible, contact your vendor for assistance.
</para>
</sect2>
@@ -170,7 +170,7 @@
<para>
If different &quot;minor&quot; &repmgr; versions (e.g. 4.1.1 and 4.1.6) are installed,
&repmgr; will function, but we strongly recommend always running the same version
to ensure there are no unexpected surprises, e.g. a newer version behaving slightly
to ensure there are no unexpected suprises, e.g. a newer version behaving slightly
differently to the older version.
</para>
<para>
@@ -212,11 +212,11 @@
</para>
</sect2>
<sect2 id="faq-third-party-packages" xreflabel="Compatibility with third party vendor packages">
<sect2 id="faq-third-party-packages" xreflabel="Compatability with third party vendor packages">
<title>Are &repmgr; packages compatible with <literal>$third_party_vendor</literal>'s packages?</title>
<para>
&repmgr; packages provided by EnterpriseDB are compatible with the community-provided PostgreSQL
packages and specified software provided by EnterpriseDB.
&repmgr; packages provided by 2ndQuadrant are compatible with the community-provided PostgreSQL
packages and any software provided by 2ndQuadrant.
</para>
<para>
A number of other vendors provide their own versions of PostgreSQL packages, often with different
@@ -249,16 +249,16 @@
For a standby which has been manually cloned or recovered from an external
backup manager such as Barman, the command
<command><link linkend="repmgr-standby-clone">repmgr standby clone --replication-conf-only</link></command>
can be used to create the correct replication configuration file for
can be used to create the correct <filename>recovery.conf</filename> file for
use with &repmgr; (and will create a replication slot if required). Once this has been done,
<link linkend="repmgr-standby-register">register the node</link> as usual.
</para>
</sect2>
<sect2 id="faq-repmgr-recovery-conf" >
<title>What does &repmgr; write in the replication configuration, and what options can be set there?</title>
<title>What does &repmgr; write in <filename>recovery.conf</filename>, and what options can be set there?</title>
<para>
See section <link linkend="repmgr-standby-clone-recovery-conf">Customising replication configuration</link>.
See section <link linkend="repmgr-standby-clone-recovery-conf">Customising recovery.conf</link>.
</para>
</sect2>
@@ -311,7 +311,7 @@
</para>
</sect2>
<sect2 id="faq-repmgr-shared-preload-libraries-no-repmgrd" xreflabel="shared_preload_libraries without repmgrd">
<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>
<para>
@@ -366,11 +366,11 @@
</para>
</sect2>
<sect2 id="faq-repmgr-recovery-conf-quoted-values" xreflabel="Quoted values in replication.conf">
<title>Why are some values in <filename>recovery.conf</filename> (PostgreSQL 11 and earlier) surrounded by pairs of single quotes?</title>
<sect2 id="faq-repmgr-recovery-conf-quoted-values" xreflabel="Quoted values in recovery.conf">
<title>Why are some values in <filename>recovery.conf</filename> surrounded by pairs of single quotes?</title>
<para>
This is to ensure that user-supplied values which are written as parameter values in <filename>recovery.conf</filename>
are escaped correctly and do not cause errors when the file is parsed.
are escaped correctly and do not cause errors when <filename>recovery.conf</filename> is parsed.
</para>
<para>
The escaping is performed by an internal PostgreSQL routine, which leaves strings consisting
@@ -419,9 +419,9 @@
<para>
&repmgrd; can monitor delayed standbys - those set up with
<varname>recovery_min_apply_delay</varname> set to a non-zero value
in the replication configuration. However &repmgrd; does not currently
consider this setting, and therefore may not be able to properly evaluate
the node as a promotion candidate.
in <filename>recovery.conf</filename> - but as it's not currently possible
to directly examine the value applied to the standby, &repmgrd;
may not be able to properly evaluate the node as a promotion candidate.
</para>
<para>
We recommend that delayed standbys are explicitly excluded from promotion
@@ -459,7 +459,7 @@
</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 executing &repmgr;. Always provide the full
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.
</para>
</sect2>
@@ -479,7 +479,7 @@
is out-of-date, which may lead to incorrect failover behaviour.
</para>
<para>
The onus is therefore on the administrator to manually set the cluster to a stable, healthy state before
The onus is therefore on the adminstrator to manually set the cluster to a stable, healthy state before
starting &repmgrd;.
</para>
</sect2>

View File

@@ -50,18 +50,19 @@
<title>CentOS repositories</title>
<para>
&repmgr; packages are available from the public EDB repository, and also the
PostgreSQL community repository. The EDB repository is updated immediately
after each &repmgr; release.
&repmgr; packages are available from the public 2ndQuadrant repository, and also the
PostgreSQL community repository. The 2ndQuadrant repository is updated immediately
after each
&repmgr; release.
</para>
<table id="centos-2ndquadrant-repository">
<title>EDB public repository</title>
<title>2ndQuadrant public repository</title>
<tgroup cols="2">
<tbody>
<row>
<entry>Repository URL:</entry>
<entry><ulink url="https://dl.enterprisedb.com/">https://dl.enterprisedb.com/</ulink></entry>
<entry><ulink url="https://dl.2ndquadrant.com/">https://dl.2ndquadrant.com/</ulink></entry>
</row>
<row>
<entry>Repository documentation:</entry>
@@ -252,7 +253,7 @@
</indexterm>
<para>
&repmgr; <literal>.deb</literal> packages are provided by EDB as well as the
&repmgr; <literal>.deb</literal> packages are provided by 2ndQuadrant as well as the
PostgreSQL Community APT repository, and are available for each community-supported
PostgreSQL version, currently supported Debian releases, and currently supported
Ubuntu LTS releases.
@@ -262,12 +263,12 @@
<title>APT repositories</title>
<table id="apt-2ndquadrant-repository">
<title>EDB public repository</title>
<title>2ndQuadrant public repository</title>
<tgroup cols="2">
<tbody>
<row>
<entry>Repository URL:</entry>
<entry><ulink url="https://dl.enterprisedb.com/">https://dl.enterprisedb.com/</ulink></entry>
<entry><ulink url="https://dl.2ndquadrant.com/">https://dl.2ndquadrant.com/</ulink></entry>
</row>
<row>
<entry>Repository documentation:</entry>
@@ -397,11 +398,11 @@
</indexterm>
<indexterm>
<primary>packages</primary>
<secondary>snapshots</secondary>
<secondary>snaphots</secondary>
</indexterm>
<para>
For testing new features and bug fixes, from time to time EDB provides
For testing new features and bug fixes, from time to time 2ndQuadrant provides
so-called &quot;snapshot packages&quot; via its public repository. These packages
are built from the &repmgr; source at a particular point in time, and are not formal
releases.
@@ -413,22 +414,22 @@
</para>
</note>
<para>
To install a snapshot package, it's necessary to install the EDB public snapshot repository,
following the instructions here: <ulink url="https://dl.enterprisedb.com/default/release/site/">https://dl.enterprisedb.com/default/release/site/</ulink> but replace <literal>release</literal> with <literal>snapshot</literal>
To install a snapshot package, it's necessary to install the 2ndQuadrant public snapshot repository,
following the instructions here: <ulink url="https://dl.2ndquadrant.com/default/release/site/">https://dl.2ndquadrant.com/default/release/site/</ulink> but replace <literal>release</literal> with <literal>snapshot</literal>
in the appropriate URL.
</para>
<para>
For example, to install the snapshot RPM repository for PostgreSQL 9.6, execute (as <literal>root</literal>):
<programlisting>
curl https://dl.enterprisedb.com/default/snapshot/get/9.6/rpm | bash</programlisting>
curl https://dl.2ndquadrant.com/default/snapshot/get/9.6/rpm | bash</programlisting>
or as a normal user with root sudo access:
<programlisting>
curl https://dl.enterprisedb.com/default/snapshot/get/9.6/rpm | sudo bash</programlisting>
curl https://dl.2ndquadrant.com/default/snapshot/get/9.6/rpm | sudo bash</programlisting>
</para>
<para>
Alternatively you can browse the repository here:
<ulink url="https://dl.enterprisedb.com/default/snapshot/browse/">https://dl.enterprisedb.com/default/snapshot/browse/</ulink>.
<ulink url="https://dl.2ndquadrant.com/default/snapshot/browse/">https://dl.2ndquadrant.com/default/snapshot/browse/</ulink>.
</para>
<para>
Once the repository is installed, installing or updating &repmgr; will result in the latest snapshot
@@ -438,7 +439,7 @@ curl https://dl.enterprisedb.com/default/snapshot/get/9.6/rpm | sudo bash</progr
The package name will be formatted like this:
<programlisting>
repmgr96-4.1.1-0.0git320.g5113ab0.1.el7.x86_64.rpm</programlisting>
containing the snapshot build number (here: <literal>320</literal>) and the hash
containg the snapshot build number (here: <literal>320</literal>) and the hash
of the <application>git</application> commit it was built from (here: <literal>g5113ab0</literal>).
</para>
@@ -493,6 +494,32 @@ 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>

View File

@@ -15,251 +15,9 @@
See also: <xref linkend="upgrading-repmgr"/>
</para>
<!-- remember to update the release date in ../repmgr_version.h.in -->
<sect1 id="release-5.3.3">
<title id="release-current">Release 5.3.3</title>
<para><emphasis>Mon 17 October, 2022</emphasis></para>
<para>
&repmgr; 5.3.3 is a minor release providing support for
<ulink url="https://www.postgresql.org/docs/15/release-15.html">PostgreSQL 15</ulink>
and a &repmgrd; bug fix.
</para>
<para>
If upgrading from an earlier &repmgr; version, any running &repmgrd; instances should be restarted.
</para>
<para>
If upgrading from &repmgr; 5.2.1 or earlier, a PostgreSQL restart <emphasis>is</emphasis> required.
</para>
<sect2>
<title>Bug fixes</title>
<para>
<itemizedlist>
<listitem>
<para>
&repmgrd;: ensure <link linkend="event-notifications">event notification</link> script is called for event
<literal>repmgrd_upstream_disconnect</literal>. GitHub #760.
</para>
</listitem>
</itemizedlist>
</para>
</sect2>
</sect1>
<sect1 id="release-5.3.2">
<title>Release 5.3.2</title>
<para><emphasis>Wed 25 May, 2022</emphasis></para>
<para>
&repmgr; 5.3.2 is a minor release.
</para>
<para>
Any running &repmgrd; instances should be restarted following this upgrade.
</para>
<para>
If upgrading from &repmgr; 5.2.1 or earlier, a PostgreSQL restart <emphasis>is</emphasis> required.
</para>
<sect2>
<title>Bug fixes</title>
<para>
<itemizedlist>
<listitem>
<para>
<command><link linkend="repmgr-node-status">repmgr node status</link></command>:
fix output with <option>--downstream</option> <option>--nagios</option> option combination.
GitHub #749.
</para>
</listitem>
<listitem>
<para>
<command><link linkend="repmgr-standby-clone">repmgr standby clone</link></command>:
don't treat inability to determine the cluster size as a fatal error.
</para>
<para>
The cluster size is displayed for informational purposes and is not essential
for execution of the clone operation. As the &repmgr; user may not have permissions
for all databases in the cluster, ignore the cluster size query if it fails.
</para>
</listitem>
<listitem>
<para>
&repmgrd;: ensure the witness node record on the primary is always marked
as <literal>active</literal> if previously marked <literal>inactive</literal>.
GitHub #754.
</para>
</listitem>
<listitem>
<para>
&repmgrd;: if <varname>standby_disconnect_on_failover</varname> is set, verify
&repmgr; is a superuser before attempting to disable the WAL receiver.
</para>
</listitem>
<listitem>
<para>
If the &repmgr; user is a non-superuser, and a replication-only user exists,
ensure redundant replication slots are dropped correctly even
if the <option>-S/--superuser</option> option is not provided.
</para>
</listitem>
</itemizedlist>
</para>
</sect2>
</sect1>
<sect1 id="release-5.3.1">
<title>Release 5.3.1</title>
<para><emphasis>Tue 15 February, 2022</emphasis></para>
<para>
&repmgr; 5.3.1 is a minor release.
</para>
<para>
If &repmgrd; is in use, it should be restarted on all nodes where it is running.
</para>
<para>
If upgrading from &repmgr; 5.2.1 or earlier, a PostgreSQL restart <emphasis>is</emphasis> required.
</para>
<sect2>
<title>Bug fixes</title>
<para>
<itemizedlist>
<listitem>
<para>
Fix upgrade path from &repmgr; 4.2 and 4.3 to &repmgr; 5.3.
</para>
</listitem>
<listitem>
<para>
&repmgrd;: ensure potentially open connections are closed.
</para>
<para>
In some cases, when recovering from degraded state in local node monitoring,
new connection was opened to the local node without closing
the old one, which will result in memory leakage.
</para>
</listitem>
</itemizedlist>
</para>
</sect2>
</sect1>
<sect1 id="release-5.3.0">
<title>Release 5.3.0</title>
<para><emphasis>Tue 12 October, 2021</emphasis></para>
<para>
&repmgr; 5.3.0 is a major release.
</para>
<para>
This release provides support for <ulink url="https://www.postgresql.org/docs/14/release-14.html">PostgreSQL 14</ulink>,
released in September 2021.
</para>
<para>
Note that this release includes changes to the &repmgr; shared library module, meaning a
PostgreSQL restart <emphasis>is</emphasis> required on all nodes where &repmgr; is installed.
</para>
<sect2>
<title>Improvements</title>
<para>
<itemizedlist>
<listitem>
<para>
<link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link>:
Improve handling of node rejoin failure on the demotion candidate.
</para>
<para>
Previously &repmgr; did not check whether <command>repmgr node rejoin</command> actually
succeeded on the demotion candidate, and would always wait up to <varname>node_rejoin_timeout</varname>
seconds for it to attach to the promotion candidate, even if this would never happen.
</para>
<para>
This makes it easier to identify unexpected events during a switchover operation, such as
the demotion candidate being unexpectedly restarted by an external process.
</para>
<para>
Note that the output of the <link linkend="repmgr-node-rejoin"><command>repmgr node rejoin</command></link>
operation on the demotion candidate will now be logged to a temporary file on that node;
the location of the file will be reported in the error message, if one is emitted.
</para>
</listitem>
<listitem>
<para>
&repmgrd;: at startup, if node record is marked as "inactive", attempt
to set it to "active".
</para>
<para>
This behaviour can be overridden by setting the configuration parameter
<varname>repmgrd_exit_on_inactive_node</varname> to <literal>true</literal>.
</para>
</listitem>
<listitem>
<para>
<command><link linkend="repmgr-node-rejoin">repmgr node rejoin</link></command>:
emit rejoin target note information as <literal>NOTICE</literal>.
</para>
<para>
This makes it clearer what &repmgr; is trying to do.
</para>
</listitem>
<listitem>
<para>
<link linkend="repmgr-node-check">repmgr node check</link>:
option <option>--repmgrd</option> added to check &repmgrd;
status.
</para>
</listitem>
<listitem>
<para>
Add <literal>%p</literal> <link linkend="event-notifications">event notification parameter</link>
providing the node ID of the former primary for the <literal>repmgrd_failover_promote</literal> event.
</para>
</listitem>
</itemizedlist>
</para>
</sect2>
<sect2>
<title>Bug fixes</title>
<para>
<itemizedlist>
<listitem>
<para>
<command><link linkend="repmgr-standby-clone">repmgr standby clone</link></command>:
if using <option>--replication-conf-only</option> on a node
which was set up without replication slots, but the &repmgr; configuration
was since changed to <option>use_replication_slots=1</option>,
&repmgr; will now set <varname>slot_name</varname> in the
node record, if it was previously empty.
</para>
</listitem>
<listitem>
<para>
&repmgrd;: rename internal shared library functions to minimize the
risk of clashes with other shared libraries.
</para>
<para>
This does not affect user-facing SQL functions. Howe
</para>
</listitem>
<listitem>
<para>
&repmgrd;: ensure short option <option>-s</option> is accepted.
</para>
</listitem>
</itemizedlist>
</para>
</sect2>
</sect1>
<sect1 id="release-5.2.1">
<title>Release 5.2.1</title>
<para><emphasis>Mon 7 December, 2020</emphasis></para>
<title id="release-current">Release 5.2.1</title>
<para><emphasis>??? ?? December, 2020</emphasis></para>
<para>
&repmgr; 5.2.1 is a minor release.
@@ -278,8 +36,8 @@
</itemizedlist>
</para>
</sect2>
<sect2>
<title>Bug fixes</title>
<para>
@@ -332,6 +90,7 @@
</sect2>
</sect1>
<!-- remember to update the release date in ../repmgr_version.h.in -->
<sect1 id="release-5.2.0">
<title>Release 5.2.0</title>
@@ -1439,7 +1198,7 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
</para>
<para>
Possible values are <literal>ping</literal> (default; uses <command>PQping()</command> to
determine server availability), <literal>connection</literal> (attempts to make a new connection 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>

View File

@@ -7,20 +7,20 @@
</indexterm>
<para>
<ulink url="https://www.enterprisedb.com/">EDB</ulink> provides 24x7
<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://www.enterprisedb.com/support/postgresql-support-overview-get-the-most-out-of-postgresql">Support Center</ulink>
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/EnterpriseDB/repmgr">https://github.com/EnterpriseDB/repmgr</ulink>.
Please report bugs and other issues to: <ulink url="https://github.com/2ndQuadrant/repmgr">https://github.com/2ndQuadrant/repmgr</ulink>.
</para>
<important>
@@ -64,7 +64,7 @@
<listitem>
<simpara>
<filename>repmgr.conf</filename> files (suitably anonymized if necessary)
<filename>repmpgr.conf</filename> files (suitably anonymized if necessary)
</simpara>
</listitem>

View File

@@ -15,7 +15,7 @@
<para>
<xref linkend="repmgr-standby-clone"/> can use
<ulink url="https://www.enterprisedb.com/">EDB</ulink>'s
<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).
</para>
@@ -197,7 +197,7 @@ description = "Main cluster"
<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
setting <varname>restore_command</varname> in the replication configuration to
setting <varname>restore_command</varname> in <filename>recovery.conf</filename> to
a valid shell command which can retrieve a specified WAL file from the archive.
</para>
<para>
@@ -299,7 +299,7 @@ description = "Main cluster"
build up indefinitely, possibly leading to server failure.
</simpara>
<simpara>
As an alternative we recommend using EDB's <ulink url="https://www.pgbarman.org/">Barman</ulink>,
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"/>
for more details on using &repmgr; together with Barman.
@@ -319,7 +319,7 @@ description = "Main cluster"
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 bandwidth usage between
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">
PostgreSQL cascading replication documentation</ulink>.
@@ -328,9 +328,9 @@ description = "Main cluster"
&repmgr; supports cascading replication. When cloning a standby,
set the command-line parameter <literal>--upstream-node-id</literal> to the
<varname>node_id</varname> of the server the standby should connect to, and
&repmgr; will create a replication configuration file to point to it. Note
&repmgr; will create <filename>recovery.conf</filename> to point to it. Note
that if <literal>--upstream-node-id</literal> is not explicitly provided,
&repmgr; will set the standby's replication configuration to
&repmgr; will set the standby's <filename>recovery.conf</filename> to
point to the primary node.
</para>
<para>
@@ -391,8 +391,8 @@ description = "Main cluster"
cluster, you may wish to clone a downstream standby whose upstream node
does not yet exist. In this case you can clone from the primary (or
another upstream node); provide the parameter <literal>--upstream-conninfo</literal>
to explicitly set the upstream's <varname>primary_conninfo</varname> string
in the replication configuration.
to explictly set the upstream's <varname>primary_conninfo</varname> string
in <filename>recovery.conf</filename>.
</simpara>
</tip>
</sect1>
@@ -491,12 +491,12 @@ description = "Main cluster"
</note>
<para>
If, for whatever reason, you wish to include the password in the replication configuration file,
If, for whatever reason, you wish to include the password in <filename>recovery.conf</filename>,
set <varname>use_primary_conninfo_password</varname> to <literal>true</literal> in
<filename>repmgr.conf</filename>. This will read a password set in <varname>PGPASSWORD</varname>
(but not <filename>~/.pgpass</filename>) and place it into the <varname>primary_conninfo</varname>
string in the replication configuration. Note that <varname>PGPASSWORD</varname>
will need to be set during any action which causes the replication configuration file to be
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"/>.
</para>
</sect2>
@@ -508,7 +508,7 @@ description = "Main cluster"
user (in addition to the user who manages the &repmgr; metadata). In this case,
the replication user should be set in <filename>repmgr.conf</filename> via the parameter
<varname>replication_user</varname>; &repmgr; will use this value when making
replication connections and generating the replication configuration. This
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"/>.

View File

@@ -7,14 +7,6 @@
<secondary>optional settings</secondary>
</indexterm>
<note>
<simpara>
This section documents a subset of optional configuration settings; for a full
for a full and annotated view of all configuration options see the
see the <ulink url="https://raw.githubusercontent.com/EnterpriseDB/repmgr/master/repmgr.conf.sample">sample repmgr.conf file</ulink>
</simpara>
</note>
<variablelist>
@@ -140,50 +132,5 @@ ssh_options='-q -o ConnectTimeout=10'</programlisting>
</listitem>
</varlistentry>
<varlistentry id="repmgr-conf-pg-bindir" xreflabel="pg_bindir">
<term><varname>pg_bindir</varname> (<type>string</type>)
<indexterm>
<primary><varname>pg_bindir</varname> configuration file parameter</primary>
</indexterm>
</term>
<listitem>
<para>
Path to the PostgreSQL binary directory (location of <application>pg_ctl</application>,
<application>pg_basebackup</application> etc.). Only required
if these are not in the system <varname>PATH</varname>.
</para>
<tip>
<para>
When &repmgr; is executed via <application>SSH</application> (e.g. when running
<command><link linkend="repmgr-standby-switchover">repmgr standby switchover</link></command>,
<command><link linkend="repmgr-cluster-matrix">repmgr cluster matrix</link></command> or
<command><link linkend="repmgr-cluster-crosscheck">repmgr cluster crosscheck</link></command>,
or if it is executed as cronjob), a login shell will not be used and only the
default system <varname>PATH</varname> will be set. Therefore it's recommended to set
<varname>pg_bindir</varname> so &repmgr; can correctly invoke binaries on a remote
system and avoid potential path issues.
</para>
</tip>
<para>
Debian/Ubuntu users: you will probably need to set this to the directory where
<application>pg_ctl</application> is located, e.g. <filename>/usr/lib/postgresql/9.6/bin/</filename>.
</para>
<para>
<emphasis>NOTE</emphasis>: <varname>pg_bindir</varname> is only used when &repmgr; directly
executes PostgreSQL binaries; any user-defined scripts
<emphasis>must</emphasis> be specified with the full path.
</para>
</listitem>
</varlistentry>
</variablelist>
<tip>
<simpara>
See the <ulink url="https://raw.githubusercontent.com/EnterpriseDB/repmgr/master/repmgr.conf.sample">sample repmgr.conf file</ulink>
for a full and annotated view of all configuration options.
</simpara>
</tip>
</sect1>

View File

@@ -96,9 +96,6 @@
</variablelist>
</para>
<para>
See <xref linkend="configuration-file-optional-settings"/> for further configuration options.
</para>
</sect1>

View File

@@ -27,9 +27,7 @@
<note>
<para>
If using <application>systemd</application>, ensure you have <varname>RemoveIPC</varname> set to <literal>off</literal>.
See the <ulink url="https://www.postgresql.org/docs/current/index.html">PostgreSQL documentation</ulink> section
<ulink url="https://www.postgresql.org/docs/current/kernel-resources.html#SYSTEMD-REMOVEIPC">systemd RemoveIPC</ulink>
and also the <ulink url="https://wiki.postgresql.org/wiki/Systemd">systemd</ulink>
See the <ulink url="https://wiki.postgresql.org/wiki/Systemd">systemd</ulink>
entry in the <ulink url="https://wiki.postgresql.org/wiki/Main_Page">PostgreSQL wiki</ulink> for details.
</para>
</note>

View File

@@ -164,7 +164,7 @@ conninfo='host=node1 user=repmgr dbname=repmgr connect_timeout=2'</programlistin
</para>
<para>
For a full list of annotated configuration items, see the file
<ulink url="https://raw.githubusercontent.com/EnterpriseDB/repmgr/master/repmgr.conf.sample">repmgr.conf.sample</ulink>.
<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"/>.
@@ -262,7 +262,7 @@ conninfo='host=node1 user=repmgr dbname=repmgr connect_timeout=2'</programlistin
<indexterm>
<primary>repmgr.conf</primary>
<secondary>PostgreSQL major version upgrades</secondary>
<secondary>ostgreSQL major version upgrades</secondary>
</indexterm>
<para>

View File

@@ -7,186 +7,19 @@
</indexterm>
<para>
If the &repmgr; database user (the PostgreSQL user defined in the
<varname>conninfo</varname> setting is a superuser, no further user permissions need
to be granted.
&repmgr; requires that the database defined in the <varname>conninfo</varname>
setting contains the <literal>repmgr</literal> extension. The database user defined in the
<varname>conninfo</varname> setting must be able to access this database and
the database objects contained within the extension.
</para>
<para>
The <literal>repmgr</literal> extension can only be installed by a superuser.
If the &repmgr; user is a superuser, &repmgr; will create the extension automatically.
</para>
<sect2 id="configuration-permissions-no-superuser" xreflabel="Non-super user permissions">
<title>repmgr user as a non-superuser</title>
<para>
In principle the &repmgr; database user does not need to be a superuser.
In this case the &repmgr; will need to be granted execution permissions on certain
functions, and membership of certain roles. However be aware that &repmgr; does
expect to be able to execute certain commands which are restricted to superusers;
in this case either a superuser must be specified with the <option>-S</option>/<option>--superuser</option>
(where available) option, or the corresponding action should be executed manually as a superuser.
</para>
<para>
The following sections describe the actions needed to use &repmgr; with a non-superuser,
and relevant caveats.
</para>
<sect3 id="configuration-permissions-replication" xreflabel="Replication role">
<title>Replication role</title>
<para>
&repmgr; requires a database user with the <literal>REPLICATION</literal> role
to be able to create a replication connection and (if configured) to administer
replication slots.
</para>
<para>
By default this is the database user defined in the <varname>conninfo</varname>
setting. This user can be:
<itemizedlist spacing="compact" mark="bullet">
<listitem>
<simpara>
a superuser
</simpara>
</listitem>
<listitem>
<simpara>
a non-superuser with the <literal>REPLICATION</literal> role
</simpara>
</listitem>
<listitem>
<simpara>
another user defined in the <filename>repmgr.conf</filename> parameter <varname>replication_user</varname> with the <literal>REPLICATION</literal> role
</simpara>
</listitem>
</itemizedlist>
</para>
</sect3>
<sect3 id="configuration-permissions-roles" xreflabel="Database roles for non-superusers">
<title>Database roles</title>
<para>
A non-superuser &repmgr; database user should be a member of the following
<ulink url="https://www.postgresql.org/docs/current/predefined-roles.html">predefined roles</ulink>
(PostgreSQL 10 and later):
<itemizedlist spacing="compact" mark="bullet">
<listitem>
<simpara>
<varname>pg_read_all_stats</varname>
(to read the <varname>status</varname> column of <literal>pg_stat_replication</literal>
and execute <function>pg_database_size()</function> on all databases)
</simpara>
</listitem>
<listitem>
<simpara>
<varname>pg_read_all_settings</varname> (to access the <varname>data_directory</varname> setting)
</simpara>
</listitem>
</itemizedlist>
Alternatively the meta-role <varname>pg_monitor</varname> can be granted, which includes membership
of the above predefined roles.
</para>
<para>
Membership of these roles can be granted with e.g. <command>GRANT pg_read_all_stats TO repmgr</command>.
</para>
<para>
Users of PostgreSQL 9.6 or earlier should upgrade to a supported PostgreSQL version, or provide
the <option>-S</option>/<option>--superuser</option> where available.
</para>
</sect3>
<sect3 id="configuration-permissions-extension" xreflabel="Extension creation">
<title>Extension creation</title>
<para>
&repmgr; requires that the database defined in the <varname>conninfo</varname>
setting contains the <literal>repmgr</literal> extension. The database user defined in the
<varname>conninfo</varname> setting must be able to access this database and
the database objects contained within the extension.
</para>
<para>
The <literal>repmgr</literal> extension can only be installed by a superuser.
If the &repmgr; user is a superuser, &repmgr; will create the extension automatically.
</para>
<para>
Alternatively, the extension can be created manually by a superuser
(with &quot;<command>CREATE EXTENSION repmgr</command>&quot;) before executing
<link linkend="repmgr-primary-register">repmgr primary register</link>.
</para>
</sect3>
<sect3 id="configuration-permissions-functions" xreflabel="Function permissions for non-superusers">
<title>Function permissions</title>
<para>
If the &repmgr; database user is not a superuser, <literal>EXECUTE</literal> permission should be
granted on the following function:
<itemizedlist spacing="compact" mark="bullet">
<listitem>
<simpara>
<function>pg_wal_replay_resume()</function> (required by &repmgrd; during failover operations;
if permission is not granted, the failoved process may not function reliably if a node
has WAL replay paused)
</simpara>
</listitem>
<listitem>
<simpara>
<function>pg_promote()</function> (PostgreSQL 12 and later; if permission is not granted,
&repmgr; will fall back to <command>pg_ctl promote</command>)
</simpara>
</listitem>
</itemizedlist>
</para>
<para>
<literal>EXECUTE</literal> permission on functions can be granted with e.g.:
<command>GRANT EXECUTE ON FUNCTION pg_catalog.pg_wal_replay_resume() TO repmgr</command>.
</para>
</sect3>
<sect3 id="configuration-permissions-superuser-required" xreflabel="repmgr actions requiring a superuser">
<title>repmgr actions requiring a superuser</title>
<para>
In some circumstances, &repmgr; may need to perform an operation which cannot be delegated to a
non-superuser.
<itemizedlist spacing="compact" mark="bullet">
<listitem>
<simpara>
The <command>CHECKPOINT</command> command is executed by
<link linkend="repmgr-standby-switchover">repmgr standby switchover</link>. This can only
be executed by a superuser; if the &repmgr; user is not a superuser,
the <option>-S</option>/<option>--superuser</option> should be used.
</simpara>
<simpara>
If &repmgr; is not able to execute <command>CHECKPOINT</command>,
there is a risk that the demotion candidate may not be able to shut down as smoothly as might otherwise
have been the case.
</simpara>
</listitem>
<listitem>
<simpara>
The <command>ALTER SYSTEM</command> is executed by &repmgrd; if
<varname>standby_disconnect_on_failover</varname> is set to <literal>true</literal> in
<filename>repmgr.conf</filename>. <command>ALTER SYSTEM</command> can only be executed by
a superuser; if the &repmgr; user is not a superuser, this functionality will not be available.
</simpara>
</listitem>
</itemizedlist>
</para>
</sect3>
<sect3 id="configuration-permissions-superuser-option" xreflabel="repmgr commands with --superuser option">
<title>repmgr commands with --superuser option</title>
<para>
The following repmgr commands provide the <option>-S</option>/<option>--superuser</option> option:
<itemizedlist spacing="compact" mark="bullet">
<listitem>
<simpara><link linkend="repmgr-standby-clone">repmgr standby clone</link> (to be able to copy configuration files outside of the data directory if <option>--copy-external-config-files</option> provided)</simpara>
</listitem>
<listitem>
<simpara><link linkend="repmgr-standby-switchover">repmgr standby switchover</link> (to execute <command>CHECKPOINT</command>)</simpara>
</listitem>
<listitem>
<simpara><link linkend="repmgr-node-check">repmgr node check</link> (to execute <command>repmgr node check --data-directory-config</command>; note this is also called by <link linkend="repmgr-standby-switchover">repmgr standby switchover</link>)</simpara>
</listitem>
<listitem>
<simpara><link linkend="repmgr-node-service">repmgr node service</link> (to execute <command>CHECKPOINT</command> via the <option>--checkpoint</option>; note this is also called by <link linkend="repmgr-standby-switchover">repmgr standby switchover</link>)</simpara>
</listitem>
</itemizedlist>
</para>
</sect3>
</sect2>
<para>
Alternatively, the extension can be created manually by a superuser
(with &quot;<command>CREATE EXTENSION repmgr</command>&quot;) before executing
<link linkend="repmgr-primary-register">repmgr primary register</link>.
</para>
</sect1>

View File

@@ -95,8 +95,7 @@
</para>
<para>
The following parameters are provided for a subset of event notifications; their meaning may
change according to context:
The following parameters are provided for a subset of event notifications:
</para>
<variablelist>
@@ -109,9 +108,6 @@
<para>
node ID of the demoted primary (<xref linkend="repmgr-standby-switchover"/> only)
</para>
<para>
node ID of the former primary (<literal>repmgrd_failover_promote</literal> only)
</para>
</listitem>
</varlistentry>
<varlistentry>
@@ -137,7 +133,7 @@
<para>
The values provided for <literal>%c</literal> and <literal>%a</literal>
may contain spaces, so should always be quoted.
will probably contain spaces, so should always be quoted.
</para>
<para>

View File

@@ -22,15 +22,16 @@
<para>
&repmgr; RPM packages for RedHat/CentOS variants and Fedora are available from the
<ulink url="https://www.enterprisedb.com">EDB</ulink>
<ulink url="https://dl.enterprisedb.com/">public repository</ulink>; see following
<ulink url="https://2ndquadrant.com">2ndQuadrant</ulink>
<ulink url="https://dl.2ndquadrant.com/">public repository</ulink>; see following
section for details.
</para>
<note>
<para>
Currently the <ulink url="https://www.enterprisedb.com">EDB</ulink>
<ulink url="https://dl.enterprisedb.com/">public repository</ulink> provides
support for RedHat/CentOS versions 6,7 and 8.
Currently the <ulink url="https://2ndquadrant.com">2ndQuadrant</ulink>
<ulink url="https://dl.2ndquadrant.com/">public repository</ulink> provides
support for RedHat/CentOS versions 5, 6 and 7. Support for version 8 is
available via the PGDG repository; see below for details.
</para>
</note>
<para>
@@ -44,7 +45,7 @@
<note>
<para>
&repmgr; RPM packages are designed to be compatible with the community-provided PostgreSQL packages
and EDB's PostgreSQL Extended Server (formerly 2ndQPostgres).
and 2ndQuadrant's <ulink url="https://www.2ndquadrant.com/en/resources/2ndqpostgres/">2ndQPostgres</ulink>.
They may not work with vendor-specific packages such as those provided by RedHat for RHEL
customers, as the PostgreSQL filesystem layout may be different to the community RPMs.
Please contact your support vendor for assistance.
@@ -63,16 +64,16 @@
<sect3 id="installation-packages-redhat-2ndq">
<title>EDB public RPM yum repository</title>
<title>2ndQuadrant public RPM yum repository</title>
<para>
<ulink url="https://www.enterprisedb.com/">EDB</ulink> provides a dedicated <literal>yum</literal>
<ulink url="https://dl.enterprisedb.com/">public repository</ulink> for EDB software,
<ulink url="https://2ndquadrant.com/">2ndQuadrant</ulink> provides a dedicated <literal>yum</literal>
<ulink url="https://dl.2ndquadrant.com/">public repository</ulink> for 2ndQuadrant software,
including &repmgr;. We recommend using this for all future &repmgr; releases.
</para>
<para>
General instructions for using this repository can be found on its
<ulink url="https://dl.enterprisedb.com/">homepage</ulink>. Specific instructions
<ulink url="https://dl.2ndquadrant.com/">homepage</ulink>. Specific instructions
for installing &repmgr; follow below.
</para>
<para>
@@ -82,46 +83,57 @@
<listitem>
<para>
Locate the repository RPM for your PostgreSQL version from the list at:
<ulink url="https://dl.enterprisedb.com/">https://dl.enterprisedb.com/</ulink>
</para>
</listitem>
<listitem>
<para>
Install the repository definition for your distribution and PostgreSQL version
(this enables the EDB repository as a source of &repmgr; packages).
</para>
<para>
For example, for PostgreSQL 14 on Rocky Linux 8, execute:
<programlisting>
curl https://dl.enterprisedb.com/default/release/get/14/rpm | sudo bash</programlisting>
</para>
<para>
Verify that the repository is installed with:
<programlisting>
sudo dnf repolist</programlisting>
The output should contain two entries like this:
<programlisting>
2ndquadrant-dl-default-release-pg14 2ndQuadrant packages (PG14) for 8 - x86_64
2ndquadrant-dl-default-release-pg14-debug 2ndQuadrant packages (PG14) for 8 - x86_64 - Debug</programlisting>
<ulink url="https://dl.2ndquadrant.com/">https://dl.2ndquadrant.com/</ulink>
</para>
</listitem>
<listitem>
<para>
Install the &repmgr; version appropriate for your PostgreSQL version (e.g. <literal>repmgr14</literal>):
Install the repository definition for your distribution and PostgreSQL version
(this enables the 2ndQuadrant repository as a source of &repmgr; packages).
</para>
<para>
For example, for PostgreSQL 11 on CentOS, execute:
<programlisting>
curl https://dl.2ndquadrant.com/default/release/get/11/rpm | sudo bash</programlisting>
</para>
<para>
For PostgreSQL 9.6 on CentOS, execute:
<programlisting>
curl https://dl.2ndquadrant.com/default/release/get/9.6/rpm | sudo bash</programlisting>
</para>
<para>
Verify that the repository is installed with:
<programlisting>
sudo yum repolist</programlisting>
The output should contain two entries like this:
<programlisting>
2ndquadrant-dl-default-release-pg11/7/x86_64 2ndQuadrant packages (PG11) for 7 - x86_64 18
2ndquadrant-dl-default-release-pg11-debug/7/x86_64 2ndQuadrant packages (PG11) for 7 - x86_64 - Debug 8</programlisting>
</para>
</listitem>
<listitem>
<para>
Install the &repmgr; version appropriate for your PostgreSQL version (e.g. <literal>repmgr10</literal>):
<programlisting>
sudo dnf install repmgr14</programlisting>
sudo yum install repmgr11</programlisting>
</para>
<note>
<para>
For packages for PostgreSQL 9.6 and earlier, the package name does not contain
a period between major and minor version numbers, e.g.
<literal>repmgr96</literal>.
</para>
</note>
<tip>
<para>
To determine the names of available packages, execute:
<programlisting>
dnf search repmgr</programlisting>
</para>
<para>
In CentOS 7 and earlier, use <literal>yum</literal> instead of <literal>dnf</literal>.
yum search repmgr</programlisting>
</para>
</tip>
@@ -133,7 +145,7 @@ dnf search repmgr</programlisting>
<emphasis>Compatibility with PGDG Repositories</emphasis>
</para>
<para>
The EDB &repmgr; yum repository packages use the same definitions and file system layout as the
The 2ndQuadrant &repmgr; yum repository packages use the same definitions and file system layout as the
main PGDG repository.
</para>
<para>
@@ -142,42 +154,36 @@ dnf search repmgr</programlisting>
the packages are installed from.
</para>
<para>
To ensure the EDB repository is always prioritised, set the <literal>priority</literal> option
in the repository configuration file (e.g. <filename>/etc/yum.repos.d/2ndquadrant-dl-default-release-pg14.repo</filename>
accordingly.
To ensure the 2ndQuadrant repository is always prioritised, install <literal>yum-plugin-priorities</literal>
and set the repository priorities accordingly.
</para>
<note>
<para>
With CentOS 7 and earlier, the package <literal>yum-plugin-priorities</literal> must be installed
to be able to set the repository priority.
</para>
</note>
<para>
<emphasis>Installing a specific package version</emphasis>
</para>
<para>
To install a specific package version, execute <command>dnf --showduplicates list</command>
To install a specific package version, execute <command>yum --showduplicates list</command>
for the package in question:
<programlisting>
[root@localhost ~]# dnf --showduplicates list repmgr10
Last metadata expiration check: 0:09:15 ago on Fri 11 Mar 2022 01:09:19 AM UTC.
[root@localhost ~]# yum --showduplicates list repmgr11
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: ftp.tsukuba.wide.ad.jp
* epel: nrt.edge.kernel.org
* extras: ftp.tsukuba.wide.ad.jp
* updates: ftp.tsukuba.wide.ad.jp
Installed Packages
repmgr10.x86_64 5.3.1-1.el8 @2ndquadrant-dl-default-release-pg10
repmgr11.x86_64 4.4.0-1.rhel7 @pgdg11
Available Packages
repmgr10.x86_64 5.0.0-1.rhel8 pgdg10
repmgr10.x86_64 5.1.0-1.el8 2ndquadrant-dl-default-release-pg10
repmgr10.x86_64 5.1.0-1.rhel8 pgdg10
repmgr10.x86_64 5.1.0-2.el8 2ndquadrant-dl-default-release-pg10
repmgr10.x86_64 5.2.0-1.el8 2ndquadrant-dl-default-release-pg10
repmgr10.x86_64 5.2.0-1.rhel8 pgdg10
repmgr10.x86_64 5.2.1-1.el8 2ndquadrant-dl-default-release-pg10
repmgr10.x86_64 5.3.0-1.el8 2ndquadrant-dl-default-release-pg10
repmgr10.x86_64 5.3.1-1.el8 2ndquadrant-dl-default-release-pg10</programlisting>
repmgr11.x86_64 4.2-1.el7 2ndquadrant-dl-default-release-pg11
repmgr11.x86_64 4.2-2.el7 2ndquadrant-dl-default-release-pg11
repmgr11.x86_64 4.3-1.el7 2ndquadrant-dl-default-release-pg11
repmgr11.x86_64 4.4-1.el7 2ndquadrant-dl-default-release-pg11</programlisting>
then append the appropriate version number to the package name with a hyphen, e.g.:
<programlisting>
[root@localhost ~]# dnf install repmgr10-5.3.0-1.el8</programlisting>
[root@localhost ~]# yum install repmgr11-4.3-1.el7</programlisting>
</para>
<para>
<emphasis>Installing old packages</emphasis>
</para>
@@ -185,6 +191,7 @@ repmgr10.x86_64 5.3.1-1.el8
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>
@@ -210,16 +217,16 @@ repmgr10.x86_64 5.3.1-1.el8
</para>
<sect3 id="installation-packages-debian-ubuntu-2ndq">
<title>EDB public apt repository for Debian/Ubuntu</title>
<title>2ndQuadrant public apt repository for Debian/Ubuntu</title>
<para>
<ulink url="https://www.enterprisedb.com/">EDB</ulink> provides a
<ulink url="https://dl.enterprisedb.com/">public apt repository</ulink> for EDB software,
<ulink url="https://2ndquadrant.com/">2ndQuadrant</ulink> provides a
<ulink url="https://dl.2ndquadrant.com/">public apt repository</ulink> for 2ndQuadrant software,
including &repmgr;.
</para>
<para>
General instructions for using this repository can be found on its
<ulink url="https://dl.enterprisedb.com/">homepage</ulink>. Specific instructions
<ulink url="https://dl.2ndquadrant.com/">homepage</ulink>. Specific instructions
for installing &repmgr; follow below.
</para>
@@ -232,9 +239,9 @@ repmgr10.x86_64 5.3.1-1.el8
<listitem>
<para>
Install the repository definition for your distribution and PostgreSQL version
(this enables the EDB repository as a source of &repmgr; packages) by executing:
(this enables the 2ndQuadrant repository as a source of &repmgr; packages) by executing:
<programlisting>
curl https://dl.enterprisedb.com/default/release/get/deb | sudo bash</programlisting>
curl https://dl.2ndquadrant.com/default/release/get/deb | sudo bash</programlisting>
</para>
<note>
<para>

View File

@@ -93,7 +93,7 @@
<table id="repmgr-compatibility-matrix">
<title>&repmgr; compatibility matrix</title>
<tgroup cols="4">
<tgroup cols="3">
<thead>
<row>
<entry>
@@ -108,34 +108,14 @@
<entry>
Supported PostgreSQL versions
</entry>
<entry>
Notes
</entry>
</row>
</thead>
<tbody>
<row>
<entry>
&repmgr; 5.4
</entry>
<entry>
(dev)
</entry>
<entry>
<link linkend="release-current">&repmgrversion;</link> (&releasedate;)
</entry>
<entry>
9.4, 9.5, 9.6, 10, 11, 12, 13, 15
</entry>
<entry>
&nbsp;
</entry>
</row>
<row>
<entry>
&repmgr; 5.3
&repmgr; 5.2
</entry>
<entry>
YES
@@ -143,30 +123,9 @@
<entry>
<link linkend="release-current">&repmgrversion;</link> (&releasedate;)
</entry>
<entry>
9.4, 9.5, 9.6, 10, 11, 12, 13, 14, 15
</entry>
<entry>
PostgreSQL 15 supported from &repmgr; 5.3.3
</entry>
</row>
<row>
<entry>
&repmgr; 5.2
</entry>
<entry>
NO
</entry>
<entry>
<link linkend="release-5.2.1">5.2.1</link> (2020-12-07)
</entry>
<entry>
9.4, 9.5, 9.6, 10, 11, 12, 13
</entry>
<entry>
&nbsp;
</entry>
</row>
<row>
@@ -182,9 +141,6 @@
<entry>
9.3, 9.4, 9.5, 9.6, 10, 11, 12
</entry>
<entry>
&nbsp;
</entry>
</row>
<row>
@@ -200,9 +156,6 @@
<entry>
9.3, 9.4, 9.5, 9.6, 10, 11, 12
</entry>
<entry>
&nbsp;
</entry>
</row>
@@ -219,9 +172,6 @@
<entry>
9.3, 9.4, 9.5, 9.6, 10, 11
</entry>
<entry>
&nbsp;
</entry>
</row>
<row>
@@ -237,9 +187,6 @@
<entry>
9.3, 9.4, 9.5, 9.6
</entry>
<entry>
&nbsp;
</entry>
</row>
<row>
@@ -255,9 +202,6 @@
<entry>
9.0, 9.1, 9.2, 9.3, 9.4
</entry>
<entry>
&nbsp;
</entry>
</row>
</tbody>

View File

@@ -178,18 +178,18 @@ deb-src https://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main</programlist
<para>
The source for &repmgr; is maintained at
<ulink url="https://github.com/EnterpriseDB/repmgr">https://github.com/EnterpriseDB/repmgr</ulink>.
<ulink url="https://github.com/2ndQuadrant/repmgr">https://github.com/2ndQuadrant/repmgr</ulink>.
</para>
<para>
There are also tags for each <ulink url="https://github.com/EnterpriseDB/repmgr/releases">&repmgr; release</ulink>, e.g.
<literal><ulink url="https://github.com/EnterpriseDB/repmgr/releases/tag/v4.4.0">v4.4.0</ulink></literal>.
There are also tags for each <ulink url="https://github.com/2ndQuadrant/repmgr/releases">&repmgr; release</ulink>, e.g.
<literal><ulink url="https://github.com/2ndQuadrant/repmgr/releases/tag/v4.4.0">v4.4.0</ulink></literal>.
</para>
<para>
Clone the source code using <application>git</application>:
<programlisting>
git clone https://github.com/EnterpriseDB/repmgr</programlisting>
git clone https://github.com/2ndQuadrant/repmgr</programlisting>
</para>
<para>

View File

@@ -1,18 +1,18 @@
<!-- doc/legal.xml -->
<date>2022</date>
<date>2017</date>
<copyright>
<year>2010-2022</year>
<holder>EDB</holder>
<year>2010-2020</year>
<holder>2ndQuadrant, Ltd.</holder>
</copyright>
<legalnotice id="legalnotice">
<title>Legal Notice</title>
<para>
<productname>repmgr</productname> is Copyright &copy; 2010-2022
by EDB All rights reserved.
<productname>repmgr</productname> is Copyright &copy; 2010-2020
by 2ndQuadrant, Ltd. All rights reserved.
</para>
<para>

View File

@@ -284,7 +284,7 @@
<tip>
<simpara>
For Debian-based distributions we recommend explicitly setting
For Debian-based distributions we recommend explictly setting
<option>pg_bindir</option> to the directory where <command>pg_ctl</command> and other binaries
not in the standard path are located. For PostgreSQL 9.6 this would be <filename>/usr/lib/postgresql/9.6/bin/</filename>.
</simpara>
@@ -302,7 +302,7 @@
<para>
See the file
<ulink url="https://raw.githubusercontent.com/EnterpriseDB/repmgr/master/repmgr.conf.sample">repmgr.conf.sample</ulink>
<ulink url="https://raw.githubusercontent.com/2ndQuadrant/repmgr/master/repmgr.conf.sample">repmgr.conf.sample</ulink>
for details of all available configuration parameters.
</para>
@@ -405,10 +405,9 @@
</programlisting>
<para>
This has cloned the PostgreSQL data directory files from the primary <literal>node1</literal>
using PostgreSQL's <command>pg_basebackup</command> utility. Replication configuration
containing the correct parameters to start streaming from this primary server will be
automatically appended to <filename>postgresql.auto.conf</filename>. (In PostgreSQL 11
and earlier the file <filename>recovery.conf</filename> will be created).
using PostgreSQL's <command>pg_basebackup</command> utility. A <filename>recovery.conf</filename>
file containing the correct parameters to start streaming from this primary server will be created
automatically.
</para>
<note>
<simpara>
@@ -482,10 +481,9 @@
sender_port | 5432
conninfo | user=repmgr dbname=replication host=node1 application_name=node2
</programlisting>
Note that the <varname>conninfo</varname> value is that generated in <filename>postgresql.auto.conf</filename>
(PostgreSQL 11 and earlier: <filename>recovery.conf</filename>) and will differ slightly from the primary's
<varname>conninfo</varname> as set in <filename>repmgr.conf</filename> - among others it will contain the
connecting node's name as <varname>application_name</varname>.
Note that the <varname>conninfo</varname> value is that generated in <filename>recovery.conf</filename>
and will differ slightly from the primary's <varname>conninfo</varname> as set in <filename>repmgr.conf</filename> -
among others it will contain the connecting node's name as <varname>application_name</varname>.
</para>
</sect1>

View File

@@ -25,7 +25,7 @@
</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 different value using the <option>--wait</option>
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>

View File

@@ -26,7 +26,7 @@
<para>
By default, &repmgr; will wait for up to 15 seconds to confirm that &repmgrd;
stopped. This behaviour can be overridden by specifying a different value using the <option>--wait</option>
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>

View File

@@ -125,29 +125,12 @@
is correctly configured.
</simpara>
</listitem>
</itemizedlist>
</para>
</refsect1>
<refsect1>
<title>repmgrd</title>
<para>
A separate check is available to verify whether &repmgrd; is running,
This is not included in the general output, as this does not
per-se constitute a check of the node's replication status.
</para>
<itemizedlist spacing="compact" mark="bullet">
<listitem>
<simpara>
<option>--repmgrd</option>: checks whether &repmgrd; is running.
If &repmgrd; is running but paused, status <literal>1</literal>
(<literal>WARNING</literal>) is returned.
</simpara>
</listitem>
</itemizedlist>
</refsect1>
<refsect1>
<title>Additional checks</title>
<para>

View File

@@ -22,10 +22,6 @@
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>
<para>
Note that <command>repmgr node rejoin</command> can only be used to attach
a standby to the current primary, not another standby.
</para>
<tip>
<para>
@@ -73,16 +69,16 @@
</varlistentry>
<varlistentry>
<term><option>--force-rewind</option></term>
<term><option>--force-rewind[=/path/to/pg_rewind]</option></term>
<listitem>
<para>
Execute <application>pg_rewind</application>.
</para>
<para>
See <xref linkend="repmgr-node-rejoin-pg-rewind"/> for more details on using
<application>pg_rewind</application>.
It is only necessary to provide the <application>pg_rewind</application> path
if using PostgreSQL 9.4, and <application>pg_rewind</application>
is not installed in the PostgreSQL <filename>bin</filename> directory.
</para>
</listitem>
</varlistentry>
@@ -261,6 +257,8 @@
<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 9.4.
</para>
<note>
<para>
@@ -269,10 +267,6 @@
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>
<para>
Additionally, <varname>full_page_writes</varname> must be enabled; this is the default and
normally should never be disabled.
</para>
</note>
<para>
@@ -287,7 +281,6 @@
<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
NOTICE: rejoin target is node "node3" (node ID: 3)
INFO: replication connection to the rejoin target node was successful
INFO: local and rejoin target system identifiers match
DETAIL: system identifier is 6652184002263212600
@@ -346,7 +339,6 @@
<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
NOTICE: rejoin target is node "node3" (node ID: 3)
INFO: replication connection to the rejoin target node was successful
INFO: local and rejoin target system identifiers match
DETAIL: system identifier is 6652460429293670710
@@ -384,29 +376,6 @@
DETAIL: node 2 is now attached to node 3</programlisting>
</para>
</refsect2>
<refsect2 id="repmgr-node-rejoin-postgresql-94" xreflabel="pg_rewind and PostgreSQL 9.4">
<title><command>pg_rewind</command> and PostgreSQL 9.4</title>
<indexterm>
<primary>pg_rewind</primary>
<secondary>PostgreSQL 9.4</secondary>
</indexterm>
<para>
<application>pg_rewind</application> is available in PostgreSQL 9.5 and later as part of the core distribution.
Users of PostgreSQL 9.4 will need to manually install it; the source code is available here:
<ulink url="https://github.com/vmware/pg_rewind">https://github.com/vmware/pg_rewind</ulink>.
If the <application>pg_rewind</application>
binary is not installed in the PostgreSQL <filename>bin</filename> directory, provide
its full path on the demotion candidate with <option>--force-rewind</option>.
</para>
<para>
Note that building the 9.4 version of <application>pg_rewind</application> requires the PostgreSQL
source code.
</para>
</refsect2>
</refsect1>
<refsect1 id="repmgr-node-rejoin-caveats" xreflabel="Caveats">
@@ -451,7 +420,7 @@
<warning>
<para>
In all PostgreSQL released before February 2021, <application>pg_rewind</application>
In all current PostgreSQL versions (as of September 2020), <application>pg_rewind</application>
contains a corner-case bug which affects standbys in a very specific situation.
</para>
<para>
@@ -480,15 +449,15 @@
</para>
<para>
Currently it is not possible to resolve this situation using <application>pg_rewind</application>.
A <ulink url="https://git.postgresql.org/gitweb/?p=postgresql.git;a=commit;h=2b4f3130382fe2f8705863e4d38589d4d69cd695">patch</ulink>
was submitted and is included in all PostgreSQL versions released in February 2021 or later.
A <ulink url="https://www.postgresql.org/message-id/flat/CABvVfJU-LDWvoz4-Yow3Ay5LZYTuPD7eSjjE4kGyNZpXC6FrVQ@mail.gmail.com">patch</ulink>
has been submitted and will hopefully be included in a forthcoming PostgreSQL minor release.
</para>
<para>
As a workaround, start the primary server the standby was previously attached to,
and ensure the standby can be attached to it. If <application>pg_rewind</application> was actually executed,
it will have copied in the <filename>.history</filename> file from the target primary server; this must
be removed. <command>repmgr node rejoin</command> can then be used to attach the standby to the original
primary. Ensure any changes pending on the primary have propagated to the standby. Then shut down the primary
primary. Ensure any changes pending on the primary have propogated to the standby. Then shut down the primary
server <emphasis>first</emphasis>, before shutting down the standby. It should then be possible to
use <command>repmgr node rejoin</command> to attach the standby to the new primary.
</para>
@@ -499,7 +468,7 @@
<refsect1>
<title>See also</title>
<para>
<xref linkend="repmgr-standby-follow"/>, <xref linkend="repmgr-standby-switchover"/>
<xref linkend="repmgr-standby-follow"/>
</para>
</refsect1>
</refentry>

View File

@@ -332,12 +332,6 @@ pg_basebackup_options='--waldir=/path/to/wal-directory'</programlisting>
node to the same path on the standby (default) or to the
PostgreSQL data directory.
</para>
<para>
Note that to be able to use this option, the &repmgr; user must be a superuser or
member of the <literal>pg_read_all_settings</literal> predefined role.
If this is not the case, provide a valid superuser with the
<option>-S</option>/<option>--superuser</option> option.
</para>
</listitem>
</varlistentry>
@@ -405,15 +399,11 @@ pg_basebackup_options='--waldir=/path/to/wal-directory'</programlisting>
</varlistentry>
<varlistentry>
<term><option>-S</option>/<option>--superuser</option></term>
<term><option>--superuser</option></term>
<listitem>
<para>
The name of a valid PostgreSQL superuser can be provided with this option.
</para>
<para>
This is only required if the <option>--copy-external-config-files</option> was provided
and the &repmgr; user is not a superuser or member of the <literal>pg_read_all_settings</literal>
predefined role.
If the &repmgr; user is not a superuser, the name of a valid superuser must
be provided with this option.
</para>
</listitem>
</varlistentry>

View File

@@ -189,14 +189,14 @@
</listitem>
<listitem>
<simpara>
If the promotion candidate has insufficient free walsenders to accommodate the standbys which will
If the promotion candidate has insufficient free walsenders to accomodate the standbys which will
be attached to it, the standby will be promoted anyway.
</simpara>
</listitem>
<listitem>
<simpara>
If replication slots are in use but the promotion candidate has insufficient free replication slots
to accommodate the standbys which will be attached to it, the standby will be promoted anyway.
to accomodate the standbys which will be attached to it, the standby will be promoted anyway.
</simpara>
</listitem>
</itemizedlist>

View File

@@ -64,13 +64,6 @@
<refsect1>
<title>User permission requirements</title>
<para><emphasis>data_directory</emphasis></para>
<para>
&repmgr; needs to be able to determine the location of the data directory on the
demotion candidate. If the &repmgr; is not a superuser or member of the <varname>pg_read_all_settings</varname>
<ulink url="https://www.postgresql.org/docs/current/predefined-roles.html">predefined roles</ulink>,
the name of a superuser should be provided with the <option>-S</option>/<option>--superuser</option> option.
</para>
<para><emphasis>CHECKPOINT</emphasis></para>
<para>
&repmgr; executes <command>CHECKPOINT</command> on the demotion candidate as part of the shutdown
@@ -79,7 +72,7 @@
<para>
Note that <command>CHECKPOINT</command> requires database superuser permissions to execute.
If the <literal>repmgr</literal> user is not a superuser, the name of a superuser should be
provided with the <option>-S</option>/<option>--superuser</option> option.
provided with the <option>-S</option>/<option>--superuser</option>.
</para>
<para>
If &repmgr; is unable to execute the <command>CHECKPOINT</command> command, the switchover
@@ -154,12 +147,9 @@
<para>
Use <application>pg_rewind</application> to reintegrate the old primary if necessary
(and the prerequisites for using <application>pg_rewind</application> are met).
</para>
<para>
If using PostgreSQL 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"/>
and <xref linkend="repmgr-node-rejoin-pg-rewind"/>.
provide its full path. For more details see also <xref linkend="switchover-pg-rewind"/>.
</para>
</listitem>
</varlistentry>

View File

@@ -18,7 +18,7 @@
<title>repmgr &repmgrversion; Documentation</title>
<bookinfo>
<corpauthor>EDB</corpauthor>
<corpauthor>2ndQuadrant Ltd</corpauthor>
<productname>repmgr</productname>
<productnumber>&repmgrversion;</productnumber>
&legal;
@@ -26,7 +26,7 @@
<abstract>
<para>
This is the official documentation of &repmgr; &repmgrversion; for
use with PostgreSQL 9.4 - PostgreSQL 15.
use with PostgreSQL 9.4 - PostgreSQL 13.
</para>
<para>
&repmgr; is being continually developed and we strongly recommend using the
@@ -38,19 +38,20 @@
<para>
&repmgr; is developed by
<ulink url="https://www.enterprisedb.com/">EDB</ulink>
<ulink url="https://2ndquadrant.com">2ndQuadrant</ulink>
along with contributions from other individuals and organisations.
Contributions from the community are appreciated and welcome - get
in touch via <ulink url="https://github.com/EnterpriseDB/repmgr">github</ulink>
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>.
Multiple EDB customers contribute funding to make &repmgr; development possible.
Multiple 2ndQuadrant customers contribute funding
to make repmgr development possible.
</para>
<para>
&repmgr; is fully supported by EDB's
<ulink url="https://www.enterprisedb.com/support/postgresql-support-overview-get-the-most-out-of-postgresql">24/7 Production Support</ulink>.
EDB, a Major Sponsor of the PostgreSQL project, continues to maintain &repmgr;.
We welcome participation from other organisations and individual developers.
&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.
</para>
</abstract>

View File

@@ -81,15 +81,11 @@
</para>
<note>
<simpara>
A PostgreSQL instance can only accommodate a single witness server.
</simpara>
<simpara>
If you are planning to use a single server to support more than one
witness server, a separate PostgreSQL instance is required for each
witness server in use.
&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"/>.
@@ -590,7 +586,7 @@ INFO: node 3 received notification to rerun promotion candidate election
<sect2 id="repmgrd-primary-child-disconnection-caveats">
<title>Standby disconnections monitoring caveats</title>
<para>
The following caveats should be considered if you are intending to use this functionality.
The follwing caveats should be considered if you are intending to use this functionality.
</para>
<para>
<itemizedlist mark="bullet">

View File

@@ -89,10 +89,6 @@
<literal>query</literal> - determines server availability
by executing an SQL statement on the node via the existing connection
</simpara>
<simpara>
The query is a minimal throwaway query - <command>SELECT 1</command> -
which is used to determine that the server can accept queries.
</simpara>
</listitem>
</itemizedlist>
@@ -156,7 +152,7 @@
</variablelist>
<para>
See also <filename><ulink url="https://raw.githubusercontent.com/EnterpriseDB/repmgr/master/repmgr.conf.sample">repmgr.conf.sample</ulink></filename> for an annotated sample configuration file.
See also <filename><ulink url="https://raw.githubusercontent.com/2ndQuadrant/repmgr/master/repmgr.conf.sample">repmgr.conf.sample</ulink></filename> for an annotated sample configuration file.
</para>
<sect2 id="repmgrd-automatic-failover-configuration">
@@ -333,7 +329,7 @@
<title>Optional configuration for automatic failover</title>
<para>
The following configuraton options can be used to fine-tune automatic failover:
The following configuraton options can be use to fine-tune automatic failover:
</para>
<variablelist>
@@ -345,18 +341,14 @@
</indexterm>
<para>
Indicates a preferred priority (default: <literal>100</literal>) for promoting nodes.
Indicates a preferred priority (default: <literal>100</literal>) for promoting nodes;
a value of zero prevents the node being promoted to primary.
</para>
<para>
Note that the priority setting is only applied if two or more nodes are
determined as promotion candidates; in that case the node with the
higher priority is selected.
</para>
<para>
A value of zero will always prevent the node being promoted to primary, even if there
is no other promotion candidate.
</para>
</listitem>
</varlistentry>
@@ -489,32 +481,6 @@
</listitem>
</varlistentry>
<varlistentry>
<term><option>repmgrd_exit_on_inactive_node</option></term>
<listitem>
<indexterm>
<primary>repmgrd_exit_on_inactive_node</primary>
</indexterm>
<para>
This parameter is available in &repmgr; 5.3 and later.
</para>
<para>
If a node was marked as inactive but is running, and this option is set to
<literal>true</literal>, &repmgrd; will abort on startup.
</para>
<para>
By default, <option>repmgrd_exit_on_inactive_node</option> is set
to <literal>false</literal>, in which case &repmgrd; will set the
node record to active on startup.
</para>
<para>
Setting this parameter to <literal>true</literal> causes &repmgrd;
to behave in the same way it did in &repmgr; 5.2 and earlier.
</para>
</listitem>
</varlistentry>
</variablelist>
<para>
@@ -573,7 +539,7 @@
</indexterm>
<para>
For further details and a reference implementation, see the separate document
<ulink url="https://github.com/EnterpriseDB/repmgr/blob/master/doc/repmgrd-node-fencing.md">Fencing a failed master node with repmgrd and PgBouncer</ulink>.
<ulink url="https://github.com/2ndQuadrant/repmgr/blob/master/doc/repmgrd-node-fencing.md">Fencing a failed master node with repmgrd and PgBouncer</ulink>.
</para>
</sect2>
@@ -1003,7 +969,7 @@ repmgrd_service_stop_command='sudo systemctl repmgr12 stop'
</para>
<para>
If none of the above apply, &repmgrd; will create a PID file
in the operating system's temporary directory (as determined by the environment variable
in the operating system's temporary directory (as setermined by the environment variable
<varname>TMPDIR</varname>, or if that is not set, will use <filename>/tmp</filename>).
</para>
<para>
@@ -1083,29 +1049,6 @@ REPMGRD_OPTS="--daemonize=false"
</para>
</sect2>
<sect2 id="repmgrd-daemon-monitoring">
<title>repmgrd daemon monitoring</title>
<indexterm>
<primary>repmgrd</primary>
<secondary>monitoring</secondary>
</indexterm>
<indexterm>
<primary>monitoring</primary>
<secondary>repmgrd</secondary>
</indexterm>
<para>
The command <command><link linkend="repmgr-service-status">repmgr service status</link></command>
provides an overview of the &repmgrd; daemon status (including pause status)
on all nodes in the cluster.
</para>
<para>
From &repmgr; 5.3, <command><link linkend="repmgr-node-check">repmgr node check --repmgrd</link></command>
can be used to check the status of &repmgrd; (including pause status)
on the local node.
</para>
</sect2>
</sect1>
<sect1 id="repmgrd-connection-settings">

View File

@@ -29,7 +29,7 @@
<listitem>
<simpara>
option to execute custom scripts (&quot;<link linkend="event-notifications">event notifications</link>&quot;)
option to execute custom scripts (&quot;<link linkend="event-notifications">event notifications</link>
at different points in the failover sequence
</simpara>
</listitem>

View File

@@ -120,19 +120,16 @@
</important>
<note>
<para>
<simpara>
On <literal>systemd</literal> systems we strongly recommend using the appropriate
<command>systemctl</command> commands (typically run via <command>sudo</command>) to ensure
<literal>systemd</literal> is informed about the status of the PostgreSQL service.
</para>
<para>
</simpara>
<simpara>
If using <command>sudo</command> for the <command>systemctl</command> calls, make sure the
<command>sudo</command> specification doesn't require a real tty for the user. If not set
this way, <command>repmgr</command> will fail to stop the primary.
</para>
<para>
See the <xref linkend="configuration-file-service-commands"/> documentation section for further details.
</para>
</simpara>
</note>
<para>
@@ -242,12 +239,21 @@
</simpara>
</note>
<para>
For more details on <application>pg_rewind</application>, see section <xref linkend="repmgr-node-rejoin-pg-rewind"/>
in the <link linkend="repmgr-node-rejoin"><command>repmgr node rejoin</command></link> documentation and
the PostgreSQL documentation at
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>.
</para>
<para>
<application>pg_rewind</application> has been part of the core PostgreSQL distribution since
version 9.5. Users of PostgreSQL 9.4 will need to manually install it; the source code is available here:
<ulink url="https://github.com/vmware/pg_rewind">https://github.com/vmware/pg_rewind</ulink>.
If the <application>pg_rewind</application>
binary is not installed in the PostgreSQL <filename>bin</filename> directory, provide
its full path on the demotion candidate with <option>--force-rewind</option>.
</para>
<para>
Note that building the 9.4 version of <application>pg_rewind</application> requires the PostgreSQL
source code.
</para>
</sect2>

View File

@@ -71,12 +71,6 @@
<secondary>minor release</secondary>
</indexterm>
<para>
A minor release upgrade involves updating &repmgr; from one minor release to another
minor release within the same major release (e.g. <literal>5.3.1</literal> to <literal>5.3.2</literal>).
An upgrade between minor releases of differing major releases (e.g. <literal>5.2.1</literal> to <literal>5.3.2</literal>)
is a <link linkend="upgrading-major-version">major upgrade</link>.
</para>
<para>
The process for installing minor version upgrades is quite straightforward:
@@ -111,17 +105,15 @@
</para>
<para>
A PostgreSQL restart is usually <emphasis>not</emphasis> required for minor version upgrades
within the same major version (e.g. <literal>5.3.1</literal> to <literal>5.3.2</literal>).
Be sure to check the <link linkend="appendix-release-notes">release notes</link>.
A PostgreSQL restart is <emphasis>not</emphasis> required for minor version upgrades.
</para>
<note>
<para>
The same &repmgr; &quot;major version&quot; (e.g. <literal>5.3</literal>) must be
installed on all nodes in the replication cluster. While it's possible to have differing
&repmgr; &quot;minor versions&quot; (e.g. <literal>5.3.1</literal> and <literal>5.3.2</literal>)
on different nodes, we strongly recommend updating all nodes to the latest minor version.
The same &repmgr; &quot;major version&quot; (e.g. <literal>4.2</literal>) must be
installed on all nodes in the replication cluster. While it's possible to have differing
&repmgr; &quot;minor versions&quot; (e.g. <literal>4.2.1</literal>) on different nodes,
we strongly recommend updating all nodes to the latest minor version.
</para>
</note>
@@ -490,7 +482,7 @@ ALTER EXTENSION repmgr UPDATE</programlisting>
<simpara>
If you don't care about any data from the existing &repmgr; installation,
(e.g. the contents of the <structname>events</structname> and <structname>monitoring</structname>
tables), the following steps can be skipped; proceed to <xref linkend="upgrade-reregister-nodes"/>.
tables), the follwing steps can be skipped; proceed to <xref linkend="upgrade-reregister-nodes"/>.
</simpara>
</tip>
@@ -505,10 +497,10 @@ ALTER EXTENSION repmgr UPDATE</programlisting>
<itemizedlist spacing="compact" mark="bullet">
<listitem>
<simpara>
<ulink url="https://raw.githubusercontent.com/EnterpriseDB/repmgr/REL3_3_STABLE/sql/repmgr3.0_repmgr3.1.sql">repmgr3.0_repmgr3.1.sql</ulink></simpara>
<ulink url="https://raw.githubusercontent.com/2ndQuadrant/repmgr/REL3_3_STABLE/sql/repmgr3.0_repmgr3.1.sql">repmgr3.0_repmgr3.1.sql</ulink></simpara>
</listitem>
<listitem>
<simpara><ulink url="https://raw.githubusercontent.com/EnterpriseDB/repmgr/REL3_3_STABLE/sql/repmgr3.1.1_repmgr3.1.2.sql">repmgr3.1.1_repmgr3.1.2.sql</ulink></simpara>
<simpara><ulink url="https://raw.githubusercontent.com/2ndQuadrant/repmgr/REL3_3_STABLE/sql/repmgr3.1.1_repmgr3.1.2.sql">repmgr3.1.1_repmgr3.1.2.sql</ulink></simpara>
</listitem>
</itemizedlist>
</para>

View File

@@ -1,6 +1,6 @@
/*
* errcode.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -49,6 +49,5 @@
#define ERR_NODE_STATUS 25
#define ERR_REPMGRD_PAUSE 26
#define ERR_REPMGRD_SERVICE 27
#define ERR_PGBACKUPAPI_SERVICE 28
#endif /* _ERRCODE_H_ */

2
log.c
View File

@@ -1,6 +1,6 @@
/*
* log.c - Logging methods
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

2
log.h
View File

@@ -1,6 +1,6 @@
/*
* log.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -1,147 +0,0 @@
/*
* pgbackupapi.c
* Copyright (c) EnterpriseDB Corporation, 2010-2021
*
* 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
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <curl/curl.h>
#include <json-c/json.h>
#include "repmgr.h"
#include "pgbackupapi.h"
size_t receive_operations_cb(void *content, size_t size, size_t nmemb, char *buffer) {
short int max_chars_to_copy = MAX_BUFFER_LENGTH -2;
short int i = 0;
int operation_length = 0;
json_object *value;
json_object *root = json_tokener_parse(content);
json_object *operations = json_object_object_get(root, "operations");
operation_length = strlen(json_object_get_string(operations));
if (operation_length < max_chars_to_copy) {
max_chars_to_copy = operation_length;
}
strncpy(buffer, json_object_get_string(operations), max_chars_to_copy);
fprintf(stdout, "Success! The following operations were found\n");
for (i=0; i<json_object_array_length(operations); i++) {
value = json_object_array_get_idx(operations, i);
printf("%s\n", json_object_get_string(value));
}
return size * nmemb;
}
char * define_base_url(operation_task *task) {
char *format = "http://%s:7480/servers/%s/operations";
char *url = malloc(MAX_BUFFER_LENGTH);
snprintf(url, MAX_BUFFER_LENGTH-1, format, task->host, task->node_name);
//`url` is freed on the function that called this
return url;
}
CURLcode get_operations_on_server(CURL *curl, operation_task *task) {
char buffer[MAX_BUFFER_LENGTH];
char *url = define_base_url(task);
CURLcode ret;
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, receive_operations_cb);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
curl_easy_setopt(curl, CURLOPT_URL, url);
ret = curl_easy_perform(curl);
free(url);
return ret;
}
size_t receive_operation_id(void *content, size_t size, size_t nmemb, char *buffer) {
json_object *root = json_tokener_parse(content);
json_object *operation = json_object_object_get(root, "operation_id");
if (operation != NULL) {
strncpy(buffer, json_object_get_string(operation), MAX_BUFFER_LENGTH-2);
}
return size * nmemb;
}
CURLcode create_new_task(CURL *curl, operation_task *task) {
PQExpBufferData payload;
char *url = define_base_url(task);
CURLcode ret;
json_object *root = json_object_new_object();
struct curl_slist *chunk = NULL;
json_object_object_add(root, "operation_type", json_object_new_string(task->operation_type));
json_object_object_add(root, "backup_id", json_object_new_string(task->backup_id));
json_object_object_add(root, "remote_ssh_command", json_object_new_string(task->remote_ssh_command));
json_object_object_add(root, "destination_directory", json_object_new_string(task->destination_directory));
initPQExpBuffer(&payload);
appendPQExpBufferStr(&payload, json_object_to_json_string(root));
chunk = curl_slist_append(chunk, "Content-type: application/json");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, payload.data);
curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1L);
//curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, receive_operation_id);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, task->operation_id);
ret = curl_easy_perform(curl);
free(url);
termPQExpBuffer(&payload);
return ret;
}
size_t receive_operation_status(void *content, size_t size, size_t nmemb, char *buffer) {
json_object *root = json_tokener_parse(content);
json_object *status = json_object_object_get(root, "status");
if (status != NULL) {
strncpy(buffer, json_object_get_string(status), MAX_BUFFER_LENGTH-2);
}
else {
fprintf(stderr, "Incorrect reply received for that operation ID.\n");
strcpy(buffer, "\0");
}
return size * nmemb;
}
CURLcode get_status_of_operation(CURL *curl, operation_task *task) {
CURLcode ret;
char *url = define_base_url(task);
strcat(url, "/");
strcat(url, task->operation_id);
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, receive_operation_status);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, task->operation_status);
ret = curl_easy_perform(curl);
free(url);
return ret;
}

View File

@@ -1,46 +0,0 @@
/*
* pgbackupapi.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
*
* 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
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <curl/curl.h>
#include <json-c/json.h>
typedef struct operation_task {
char *backup_id;
char *destination_directory;
char *operation_type;
char *operation_id;
char *operation_status;
char *remote_ssh_command;
char *host;
char *node_name;
} operation_task;
//Default simplebuffer size in most of operations
#define MAX_BUFFER_LENGTH 72
//Callbacks to send/receive data from pg-backup-api endpoints
size_t receive_operations_cb(void *content, size_t size, size_t nmemb, char *buffer);
size_t receive_operation_id(void *content, size_t size, size_t nmemb, char *buffer);
size_t receive_operation_status(void *content, size_t size, size_t nmemb, char *buffer);
//Functions that implement the logic and know what to do and how to comunnicate wuth the API
CURLcode get_operations_on_server(CURL *curl, operation_task *task);
CURLcode create_new_task(CURL *curl, operation_task *task);
CURLcode get_status_of_operation(CURL *curl, operation_task *task);
//Helper to make simpler to read the handler where we set the URL
char * define_base_url(operation_task *task);

View File

@@ -1,10 +1,17 @@
-- complain if script is sourced in psql, rather than via CREATE EXTENSION
\echo Use "ALTER EXTENSION repmgr UPDATE" to load this file. \quit
\echo Use "CREATE EXTENSION repmgr" to load this file. \quit
-- This script is intentionally empty and exists to skip the CREATE FUNCTION
-- commands contained in the 4.2--4.3 and 4.3--4.4 extension upgrade scripts,
-- which reference C functions which no longer exist in 5.3 and later.
--
-- These functions will be explicitly created in the 5.2--5.3 extension
-- upgrade step with the correct C function references.
CREATE FUNCTION set_upstream_last_seen()
RETURNS VOID
AS 'MODULE_PATHNAME', 'set_upstream_last_seen'
LANGUAGE C STRICT;
CREATE FUNCTION get_upstream_last_seen()
RETURNS INT
AS 'MODULE_PATHNAME', 'get_upstream_last_seen'
LANGUAGE C STRICT;
CREATE FUNCTION get_wal_receiver_pid()
RETURNS INT
AS 'MODULE_PATHNAME', 'get_wal_receiver_pid'
LANGUAGE C STRICT;

View File

@@ -1,9 +1,19 @@
-- complain if script is sourced in psql, rather than via CREATE EXTENSION
\echo Use "ALTER EXTENSION repmgr UPDATE" to load this file. \quit
\echo Use "CREATE EXTENSION repmgr" to load this file. \quit
-- This script is intentionally empty and exists to skip the CREATE FUNCTION
-- commands contained in the 4.3--4.4 extension upgrade script, which reference
-- C functions which no longer exist in 5.3 and later.
--
-- These functions will be explicitly created in the 5.2--5.3 extension
-- upgrade step with the correct C function references.
DROP FUNCTION set_upstream_last_seen();
CREATE FUNCTION set_upstream_last_seen(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'set_upstream_last_seen'
LANGUAGE C STRICT;
CREATE FUNCTION get_upstream_node_id()
RETURNS INT
AS 'MODULE_PATHNAME', 'get_upstream_node_id'
LANGUAGE C STRICT;
CREATE FUNCTION set_upstream_node_id(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'set_upstream_node_id'
LANGUAGE C STRICT;

View File

@@ -1,64 +0,0 @@
-- complain if script is sourced in psql, rather than via CREATE EXTENSION
\echo Use "CREATE EXTENSION repmgr" to load this file. \quit
CREATE OR REPLACE FUNCTION set_local_node_id(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_set_local_node_id'
LANGUAGE C STRICT;
CREATE OR REPLACE FUNCTION repmgr.get_local_node_id()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_local_node_id'
LANGUAGE C STRICT;
CREATE OR REPLACE FUNCTION standby_set_last_updated()
RETURNS TIMESTAMP WITH TIME ZONE
AS 'MODULE_PATHNAME', 'repmgr_standby_set_last_updated'
LANGUAGE C STRICT;
CREATE OR REPLACE FUNCTION standby_get_last_updated()
RETURNS TIMESTAMP WITH TIME ZONE
AS 'MODULE_PATHNAME', 'repmgr_standby_get_last_updated'
LANGUAGE C STRICT;
CREATE OR REPLACE FUNCTION set_upstream_last_seen(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_set_upstream_last_seen'
LANGUAGE C STRICT;
CREATE OR REPLACE FUNCTION get_upstream_last_seen()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_upstream_last_seen'
LANGUAGE C STRICT;
CREATE OR REPLACE FUNCTION get_upstream_node_id()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_upstream_node_id'
LANGUAGE C STRICT;
CREATE OR REPLACE FUNCTION set_upstream_node_id(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_set_upstream_node_id'
LANGUAGE C STRICT;
/* failover functions */
CREATE OR REPLACE FUNCTION notify_follow_primary(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_notify_follow_primary'
LANGUAGE C STRICT;
CREATE OR REPLACE FUNCTION get_new_primary()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_new_primary'
LANGUAGE C STRICT;
CREATE OR REPLACE FUNCTION reset_voting_status()
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_reset_voting_status'
LANGUAGE C STRICT;
CREATE OR REPLACE FUNCTION get_wal_receiver_pid()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_wal_receiver_pid'
LANGUAGE C STRICT;

View File

@@ -1,2 +0,0 @@
-- complain if script is sourced in psql, rather than via CREAT EXTENSION
\echo Use "CREATE EXTENSION repmgr" to load this file. \quit

View File

@@ -1,192 +0,0 @@
-- complain if script is sourced in psql, rather than via CREATE EXTENSION
\echo Use "CREATE EXTENSION repmgr" to load this file. \quit
CREATE TABLE repmgr.nodes (
node_id INTEGER PRIMARY KEY,
upstream_node_id INTEGER NULL REFERENCES nodes (node_id) DEFERRABLE,
active BOOLEAN NOT NULL DEFAULT TRUE,
node_name TEXT NOT NULL,
type TEXT NOT NULL CHECK (type IN('primary','standby','witness','bdr')),
location TEXT NOT NULL DEFAULT 'default',
priority INT NOT NULL DEFAULT 100,
conninfo TEXT NOT NULL,
repluser VARCHAR(63) NOT NULL,
slot_name TEXT NULL,
config_file TEXT NOT NULL
);
SELECT pg_catalog.pg_extension_config_dump('repmgr.nodes', '');
CREATE TABLE repmgr.events (
node_id INTEGER NOT NULL,
event TEXT NOT NULL,
successful BOOLEAN NOT NULL DEFAULT TRUE,
event_timestamp TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
details TEXT NULL
);
SELECT pg_catalog.pg_extension_config_dump('repmgr.events', '');
CREATE TABLE repmgr.monitoring_history (
primary_node_id INTEGER NOT NULL,
standby_node_id INTEGER NOT NULL,
last_monitor_time TIMESTAMP WITH TIME ZONE NOT NULL,
last_apply_time TIMESTAMP WITH TIME ZONE,
last_wal_primary_location PG_LSN NOT NULL,
last_wal_standby_location PG_LSN,
replication_lag BIGINT NOT NULL,
apply_lag BIGINT NOT NULL
);
CREATE INDEX idx_monitoring_history_time
ON repmgr.monitoring_history (last_monitor_time, standby_node_id);
SELECT pg_catalog.pg_extension_config_dump('repmgr.monitoring_history', '');
CREATE VIEW repmgr.show_nodes AS
SELECT n.node_id,
n.node_name,
n.active,
n.upstream_node_id,
un.node_name AS upstream_node_name,
n.type,
n.priority,
n.conninfo
FROM repmgr.nodes n
LEFT JOIN repmgr.nodes un
ON un.node_id = n.upstream_node_id;
CREATE TABLE repmgr.voting_term (
term INT NOT NULL
);
CREATE UNIQUE INDEX voting_term_restrict
ON repmgr.voting_term ((TRUE));
CREATE RULE voting_term_delete AS
ON DELETE TO repmgr.voting_term
DO INSTEAD NOTHING;
/* ================= */
/* repmgrd functions */
/* ================= */
/* monitoring functions */
CREATE FUNCTION set_local_node_id(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_set_local_node_id'
LANGUAGE C STRICT;
CREATE FUNCTION get_local_node_id()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_local_node_id'
LANGUAGE C STRICT;
CREATE FUNCTION standby_set_last_updated()
RETURNS TIMESTAMP WITH TIME ZONE
AS 'MODULE_PATHNAME', 'repmgr_standby_set_last_updated'
LANGUAGE C STRICT;
CREATE FUNCTION standby_get_last_updated()
RETURNS TIMESTAMP WITH TIME ZONE
AS 'MODULE_PATHNAME', 'repmgr_standby_get_last_updated'
LANGUAGE C STRICT;
CREATE FUNCTION set_upstream_last_seen(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_set_upstream_last_seen'
LANGUAGE C STRICT;
CREATE FUNCTION get_upstream_last_seen()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_upstream_last_seen'
LANGUAGE C STRICT;
CREATE FUNCTION get_upstream_node_id()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_upstream_node_id'
LANGUAGE C STRICT;
CREATE FUNCTION set_upstream_node_id(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_set_upstream_node_id'
LANGUAGE C STRICT;
/* failover functions */
CREATE FUNCTION notify_follow_primary(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_notify_follow_primary'
LANGUAGE C STRICT;
CREATE FUNCTION get_new_primary()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_new_primary'
LANGUAGE C STRICT;
CREATE FUNCTION reset_voting_status()
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_reset_voting_status'
LANGUAGE C STRICT;
CREATE FUNCTION get_repmgrd_pid()
RETURNS INT
AS 'MODULE_PATHNAME', 'get_repmgrd_pid'
LANGUAGE C STRICT;
CREATE FUNCTION get_repmgrd_pidfile()
RETURNS TEXT
AS 'MODULE_PATHNAME', 'get_repmgrd_pidfile'
LANGUAGE C STRICT;
CREATE FUNCTION set_repmgrd_pid(INT, TEXT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'set_repmgrd_pid'
LANGUAGE C CALLED ON NULL INPUT;
CREATE FUNCTION repmgrd_is_running()
RETURNS BOOL
AS 'MODULE_PATHNAME', 'repmgrd_is_running'
LANGUAGE C STRICT;
CREATE FUNCTION repmgrd_pause(BOOL)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgrd_pause'
LANGUAGE C STRICT;
CREATE FUNCTION repmgrd_is_paused()
RETURNS BOOL
AS 'MODULE_PATHNAME', 'repmgrd_is_paused'
LANGUAGE C STRICT;
CREATE FUNCTION get_wal_receiver_pid()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_wal_receiver_pid'
LANGUAGE C STRICT;
/* views */
CREATE VIEW repmgr.replication_status AS
SELECT m.primary_node_id, m.standby_node_id, n.node_name AS standby_name,
n.type AS node_type, n.active, last_monitor_time,
CASE WHEN n.type='standby' THEN m.last_wal_primary_location ELSE NULL END AS last_wal_primary_location,
m.last_wal_standby_location,
CASE WHEN n.type='standby' THEN pg_catalog.pg_size_pretty(m.replication_lag) ELSE NULL END AS replication_lag,
CASE WHEN n.type='standby' THEN
CASE WHEN replication_lag > 0 THEN age(now(), m.last_apply_time) ELSE '0'::INTERVAL END
ELSE NULL
END AS replication_time_lag,
CASE WHEN n.type='standby' THEN pg_catalog.pg_size_pretty(m.apply_lag) ELSE NULL END AS apply_lag,
AGE(NOW(), CASE WHEN pg_catalog.pg_is_in_recovery() THEN repmgr.standby_get_last_updated() ELSE m.last_monitor_time END) AS communication_time_lag
FROM repmgr.monitoring_history m
JOIN repmgr.nodes n ON m.standby_node_id = n.node_id
WHERE (m.standby_node_id, m.last_monitor_time) IN (
SELECT m1.standby_node_id, MAX(m1.last_monitor_time)
FROM repmgr.monitoring_history m1 GROUP BY 1
);

View File

@@ -1,192 +0,0 @@
-- complain if script is sourced in psql, rather than via CREATE EXTENSION
\echo Use "CREATE EXTENSION repmgr" to load this file. \quit
CREATE TABLE repmgr.nodes (
node_id INTEGER PRIMARY KEY,
upstream_node_id INTEGER NULL REFERENCES nodes (node_id) DEFERRABLE,
active BOOLEAN NOT NULL DEFAULT TRUE,
node_name TEXT NOT NULL,
type TEXT NOT NULL CHECK (type IN('primary','standby','witness','bdr')),
location TEXT NOT NULL DEFAULT 'default',
priority INT NOT NULL DEFAULT 100,
conninfo TEXT NOT NULL,
repluser VARCHAR(63) NOT NULL,
slot_name TEXT NULL,
config_file TEXT NOT NULL
);
SELECT pg_catalog.pg_extension_config_dump('repmgr.nodes', '');
CREATE TABLE repmgr.events (
node_id INTEGER NOT NULL,
event TEXT NOT NULL,
successful BOOLEAN NOT NULL DEFAULT TRUE,
event_timestamp TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
details TEXT NULL
);
SELECT pg_catalog.pg_extension_config_dump('repmgr.events', '');
CREATE TABLE repmgr.monitoring_history (
primary_node_id INTEGER NOT NULL,
standby_node_id INTEGER NOT NULL,
last_monitor_time TIMESTAMP WITH TIME ZONE NOT NULL,
last_apply_time TIMESTAMP WITH TIME ZONE,
last_wal_primary_location PG_LSN NOT NULL,
last_wal_standby_location PG_LSN,
replication_lag BIGINT NOT NULL,
apply_lag BIGINT NOT NULL
);
CREATE INDEX idx_monitoring_history_time
ON repmgr.monitoring_history (last_monitor_time, standby_node_id);
SELECT pg_catalog.pg_extension_config_dump('repmgr.monitoring_history', '');
CREATE VIEW repmgr.show_nodes AS
SELECT n.node_id,
n.node_name,
n.active,
n.upstream_node_id,
un.node_name AS upstream_node_name,
n.type,
n.priority,
n.conninfo
FROM repmgr.nodes n
LEFT JOIN repmgr.nodes un
ON un.node_id = n.upstream_node_id;
CREATE TABLE repmgr.voting_term (
term INT NOT NULL
);
CREATE UNIQUE INDEX voting_term_restrict
ON repmgr.voting_term ((TRUE));
CREATE RULE voting_term_delete AS
ON DELETE TO repmgr.voting_term
DO INSTEAD NOTHING;
/* ================= */
/* repmgrd functions */
/* ================= */
/* monitoring functions */
CREATE FUNCTION set_local_node_id(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_set_local_node_id'
LANGUAGE C STRICT;
CREATE FUNCTION get_local_node_id()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_local_node_id'
LANGUAGE C STRICT;
CREATE FUNCTION standby_set_last_updated()
RETURNS TIMESTAMP WITH TIME ZONE
AS 'MODULE_PATHNAME', 'repmgr_standby_set_last_updated'
LANGUAGE C STRICT;
CREATE FUNCTION standby_get_last_updated()
RETURNS TIMESTAMP WITH TIME ZONE
AS 'MODULE_PATHNAME', 'repmgr_standby_get_last_updated'
LANGUAGE C STRICT;
CREATE FUNCTION set_upstream_last_seen(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_set_upstream_last_seen'
LANGUAGE C STRICT;
CREATE FUNCTION get_upstream_last_seen()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_upstream_last_seen'
LANGUAGE C STRICT;
CREATE FUNCTION get_upstream_node_id()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_upstream_node_id'
LANGUAGE C STRICT;
CREATE FUNCTION set_upstream_node_id(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_set_upstream_node_id'
LANGUAGE C STRICT;
/* failover functions */
CREATE FUNCTION notify_follow_primary(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_notify_follow_primary'
LANGUAGE C STRICT;
CREATE FUNCTION get_new_primary()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_new_primary'
LANGUAGE C STRICT;
CREATE FUNCTION reset_voting_status()
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_reset_voting_status'
LANGUAGE C STRICT;
CREATE FUNCTION get_repmgrd_pid()
RETURNS INT
AS 'MODULE_PATHNAME', 'get_repmgrd_pid'
LANGUAGE C STRICT;
CREATE FUNCTION get_repmgrd_pidfile()
RETURNS TEXT
AS 'MODULE_PATHNAME', 'get_repmgrd_pidfile'
LANGUAGE C STRICT;
CREATE FUNCTION set_repmgrd_pid(INT, TEXT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'set_repmgrd_pid'
LANGUAGE C CALLED ON NULL INPUT;
CREATE FUNCTION repmgrd_is_running()
RETURNS BOOL
AS 'MODULE_PATHNAME', 'repmgrd_is_running'
LANGUAGE C STRICT;
CREATE FUNCTION repmgrd_pause(BOOL)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgrd_pause'
LANGUAGE C STRICT;
CREATE FUNCTION repmgrd_is_paused()
RETURNS BOOL
AS 'MODULE_PATHNAME', 'repmgrd_is_paused'
LANGUAGE C STRICT;
CREATE FUNCTION get_wal_receiver_pid()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_wal_receiver_pid'
LANGUAGE C STRICT;
/* views */
CREATE VIEW repmgr.replication_status AS
SELECT m.primary_node_id, m.standby_node_id, n.node_name AS standby_name,
n.type AS node_type, n.active, last_monitor_time,
CASE WHEN n.type='standby' THEN m.last_wal_primary_location ELSE NULL END AS last_wal_primary_location,
m.last_wal_standby_location,
CASE WHEN n.type='standby' THEN pg_catalog.pg_size_pretty(m.replication_lag) ELSE NULL END AS replication_lag,
CASE WHEN n.type='standby' THEN
CASE WHEN replication_lag > 0 THEN age(now(), m.last_apply_time) ELSE '0'::INTERVAL END
ELSE NULL
END AS replication_time_lag,
CASE WHEN n.type='standby' THEN pg_catalog.pg_size_pretty(m.apply_lag) ELSE NULL END AS apply_lag,
AGE(NOW(), CASE WHEN pg_catalog.pg_is_in_recovery() THEN repmgr.standby_get_last_updated() ELSE m.last_monitor_time END) AS communication_time_lag
FROM repmgr.monitoring_history m
JOIN repmgr.nodes n ON m.standby_node_id = n.node_id
WHERE (m.standby_node_id, m.last_monitor_time) IN (
SELECT m1.standby_node_id, MAX(m1.last_monitor_time)
FROM repmgr.monitoring_history m1 GROUP BY 1
);

View File

@@ -1,245 +0,0 @@
-- complain if script is sourced in psql, rather than via CREATE EXTENSION
\echo Use "CREATE EXTENSION repmgr" to load this file. \quit
-- extract the current schema name
-- NOTE: this assumes there will be only one schema matching 'repmgr_%';
-- user is responsible for ensuring this is the case
CREATE TEMPORARY TABLE repmgr_old_schema (schema_name TEXT);
INSERT INTO repmgr_old_schema (schema_name)
SELECT nspname AS schema_name
FROM pg_catalog.pg_namespace
WHERE nspname LIKE 'repmgr_%'
LIMIT 1;
-- move old objects into new schema
DO $repmgr$
DECLARE
old_schema TEXT;
BEGIN
SELECT schema_name FROM repmgr_old_schema
INTO old_schema;
EXECUTE format('ALTER TABLE %I.repl_nodes SET SCHEMA repmgr', old_schema);
EXECUTE format('ALTER TABLE %I.repl_events SET SCHEMA repmgr', old_schema);
EXECUTE format('ALTER TABLE %I.repl_monitor SET SCHEMA repmgr', old_schema);
EXECUTE format('DROP VIEW IF EXISTS %I.repl_show_nodes', old_schema);
EXECUTE format('DROP VIEW IF EXISTS %I.repl_status', old_schema);
END$repmgr$;
-- convert "repmgr_$cluster.repl_nodes" to "repmgr.nodes"
CREATE TABLE repmgr.nodes (
node_id INTEGER PRIMARY KEY,
upstream_node_id INTEGER NULL REFERENCES repmgr.nodes (node_id) DEFERRABLE,
active BOOLEAN NOT NULL DEFAULT TRUE,
node_name TEXT NOT NULL,
type TEXT NOT NULL CHECK (type IN('primary','standby','witness','bdr')),
location TEXT NOT NULL DEFAULT 'default',
priority INT NOT NULL DEFAULT 100,
conninfo TEXT NOT NULL,
repluser VARCHAR(63) NOT NULL,
slot_name TEXT NULL,
config_file TEXT NOT NULL
);
INSERT INTO repmgr.nodes
(node_id, upstream_node_id, active, node_name, type, location, priority, conninfo, repluser, slot_name, config_file)
SELECT id, upstream_node_id, active, name,
CASE WHEN type = 'master' THEN 'primary' ELSE type END,
'default', priority, conninfo, 'unknown', slot_name, 'unknown'
FROM repmgr.repl_nodes
ORDER BY id;
-- convert "repmgr_$cluster.repl_event" to "event"
CREATE TABLE repmgr.events (
node_id INTEGER NOT NULL,
event TEXT NOT NULL,
successful BOOLEAN NOT NULL DEFAULT TRUE,
event_timestamp TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
details TEXT NULL
);
INSERT INTO repmgr.events
(node_id, event, successful, event_timestamp, details)
SELECT node_id, event, successful, event_timestamp, details
FROM repmgr.repl_events;
-- create new table "repmgr.voting_term"
CREATE TABLE repmgr.voting_term (
term INT NOT NULL
);
CREATE UNIQUE INDEX voting_term_restrict
ON repmgr.voting_term ((TRUE));
CREATE RULE voting_term_delete AS
ON DELETE TO repmgr.voting_term
DO INSTEAD NOTHING;
INSERT INTO repmgr.voting_term (term) VALUES (1);
-- convert "repmgr_$cluster.repl_monitor" to "monitoring_history"
CREATE TABLE repmgr.monitoring_history (
primary_node_id INTEGER NOT NULL,
standby_node_id INTEGER NOT NULL,
last_monitor_time TIMESTAMP WITH TIME ZONE NOT NULL,
last_apply_time TIMESTAMP WITH TIME ZONE,
last_wal_primary_location PG_LSN NOT NULL,
last_wal_standby_location PG_LSN,
replication_lag BIGINT NOT NULL,
apply_lag BIGINT NOT NULL
);
INSERT INTO repmgr.monitoring_history
(primary_node_id, standby_node_id, last_monitor_time, last_apply_time, last_wal_primary_location, last_wal_standby_location, replication_lag, apply_lag)
SELECT primary_node, standby_node, last_monitor_time, last_apply_time, last_wal_primary_location::pg_lsn, last_wal_standby_location::pg_lsn, replication_lag, apply_lag
FROM repmgr.repl_monitor;
CREATE INDEX idx_monitoring_history_time
ON repmgr.monitoring_history (last_monitor_time, standby_node_id);
CREATE VIEW repmgr.show_nodes AS
SELECT n.node_id,
n.node_name,
n.active,
n.upstream_node_id,
un.node_name AS upstream_node_name,
n.type,
n.priority,
n.conninfo
FROM repmgr.nodes n
LEFT JOIN repmgr.nodes un
ON un.node_id = n.upstream_node_id;
/* ================= */
/* repmgrd functions */
/* ================= */
/* monitoring functions */
CREATE FUNCTION set_local_node_id(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_set_local_node_id'
LANGUAGE C STRICT;
CREATE FUNCTION get_local_node_id()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_local_node_id'
LANGUAGE C STRICT;
CREATE FUNCTION standby_set_last_updated()
RETURNS TIMESTAMP WITH TIME ZONE
AS 'MODULE_PATHNAME', 'repmgr_standby_set_last_updated'
LANGUAGE C STRICT;
CREATE FUNCTION standby_get_last_updated()
RETURNS TIMESTAMP WITH TIME ZONE
AS 'MODULE_PATHNAME', 'repmgr_standby_get_last_updated'
LANGUAGE C STRICT;
CREATE FUNCTION set_upstream_last_seen(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_set_upstream_last_seen'
LANGUAGE C STRICT;
CREATE FUNCTION get_upstream_last_seen()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_upstream_last_seen'
LANGUAGE C STRICT;
CREATE FUNCTION get_upstream_node_id()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_upstream_node_id'
LANGUAGE C STRICT;
CREATE FUNCTION set_upstream_node_id(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_set_upstream_node_id'
LANGUAGE C STRICT;
/* failover functions */
CREATE FUNCTION notify_follow_primary(INT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_notify_follow_primary'
LANGUAGE C STRICT;
CREATE FUNCTION get_new_primary()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_new_primary'
LANGUAGE C STRICT;
CREATE FUNCTION reset_voting_status()
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgr_reset_voting_status'
LANGUAGE C STRICT;
CREATE FUNCTION get_repmgrd_pid()
RETURNS INT
AS 'MODULE_PATHNAME', 'get_repmgrd_pid'
LANGUAGE C STRICT;
CREATE FUNCTION get_repmgrd_pidfile()
RETURNS TEXT
AS 'MODULE_PATHNAME', 'get_repmgrd_pidfile'
LANGUAGE C STRICT;
CREATE FUNCTION set_repmgrd_pid(INT, TEXT)
RETURNS VOID
AS 'MODULE_PATHNAME', 'set_repmgrd_pid'
LANGUAGE C CALLED ON NULL INPUT;
CREATE FUNCTION repmgrd_is_running()
RETURNS BOOL
AS 'MODULE_PATHNAME', 'repmgrd_is_running'
LANGUAGE C STRICT;
CREATE FUNCTION repmgrd_pause(BOOL)
RETURNS VOID
AS 'MODULE_PATHNAME', 'repmgrd_pause'
LANGUAGE C STRICT;
CREATE FUNCTION repmgrd_is_paused()
RETURNS BOOL
AS 'MODULE_PATHNAME', 'repmgrd_is_paused'
LANGUAGE C STRICT;
CREATE FUNCTION get_wal_receiver_pid()
RETURNS INT
AS 'MODULE_PATHNAME', 'repmgr_get_wal_receiver_pid'
LANGUAGE C STRICT;
/* views */
CREATE VIEW repmgr.replication_status AS
SELECT m.primary_node_id, m.standby_node_id, n.node_name AS standby_name,
n.type AS node_type, n.active, last_monitor_time,
CASE WHEN n.type='standby' THEN m.last_wal_primary_location ELSE NULL END AS last_wal_primary_location,
m.last_wal_standby_location,
CASE WHEN n.type='standby' THEN pg_catalog.pg_size_pretty(m.replication_lag) ELSE NULL END AS replication_lag,
CASE WHEN n.type='standby' THEN
CASE WHEN replication_lag > 0 THEN age(now(), m.last_apply_time) ELSE '0'::INTERVAL END
ELSE NULL
END AS replication_time_lag,
CASE WHEN n.type='standby' THEN pg_catalog.pg_size_pretty(m.apply_lag) ELSE NULL END AS apply_lag,
AGE(NOW(), CASE WHEN pg_catalog.pg_is_in_recovery() THEN repmgr.standby_get_last_updated() ELSE m.last_monitor_time END) AS communication_time_lag
FROM repmgr.monitoring_history m
JOIN repmgr.nodes n ON m.standby_node_id = n.node_id
WHERE (m.standby_node_id, m.last_monitor_time) IN (
SELECT m1.standby_node_id, MAX(m1.last_monitor_time)
FROM repmgr.monitoring_history m1 GROUP BY 1
);
/* drop old tables */
DROP TABLE repmgr.repl_nodes;
DROP TABLE repmgr.repl_monitor;
DROP TABLE repmgr.repl_events;
-- remove temporary table
DROP TABLE repmgr_old_schema;

View File

@@ -3,7 +3,7 @@
*
* Implements cluster information actions for the repmgr command line utility
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -1,6 +1,6 @@
/*
* repmgr-action-cluster.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -2,7 +2,7 @@
* repmgr-action-daemon.c
*
* Implements repmgrd actions for the repmgr command line utility
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -1,6 +1,6 @@
/*
* repmgr-action-daemon.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -3,7 +3,7 @@
*
* Implements actions available for any kind of node
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -35,7 +35,6 @@
static bool copy_file(const char *src_file, const char *dest_file);
static void format_archive_dir(PQExpBufferData *archive_dir);
static t_server_action parse_server_action(const char *action);
static const char *output_repmgrd_status(CheckStatus status);
static void exit_optformat_error(const char *error, int errcode);
@@ -53,11 +52,9 @@ static CheckStatus do_node_check_role(PGconn *conn, OutputMode mode, t_node_info
static CheckStatus do_node_check_slots(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output);
static CheckStatus do_node_check_missing_slots(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output);
static CheckStatus do_node_check_data_directory(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output);
static CheckStatus do_node_check_repmgrd(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output);
static CheckStatus do_node_check_replication_config_owner(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output);
static CheckStatus do_node_check_db_connection(PGconn *conn, OutputMode mode);
/*
* NODE STATUS
*
@@ -944,16 +941,6 @@ do_node_check(void)
exit(return_code);
}
if (runtime_options.repmgrd == true)
{
return_code = do_node_check_repmgrd(conn,
runtime_options.output_mode,
&node_info,
NULL);
PQfinish(conn);
exit(return_code);
}
if (runtime_options.replication_config_owner == true)
{
return_code = do_node_check_replication_config_owner(conn,
@@ -1327,7 +1314,7 @@ do_node_check_downstream(PGconn *conn, OutputMode mode, t_node_info *node_info,
continue;
}
if (is_downstream_node_attached_quiet(conn, cell->node_info->node_name, NULL) != NODE_ATTACHED)
if (is_downstream_node_attached(conn, cell->node_info->node_name, NULL) != NODE_ATTACHED)
{
missing_nodes_count++;
item_list_append_format(&missing_nodes,
@@ -1395,32 +1382,49 @@ do_node_check_downstream(PGconn *conn, OutputMode mode, t_node_info *node_info,
{
case OM_NAGIOS:
{
printf("REPMGR_DOWNSTREAM_SERVERS %s: %s | ",
output_check_status(status),
details.data);
if (missing_nodes_count)
{
ItemListCell *missing_cell = NULL;
bool first = true;
appendPQExpBufferStr(&details, " (missing: ");
printf("missing: ");
for (missing_cell = missing_nodes.head; missing_cell; missing_cell = missing_cell->next)
{
if (first == false)
appendPQExpBufferStr(&details, ", ");
printf(", ");
else
first = false;
if (first == false)
appendPQExpBufferStr(&details, missing_cell->string);
printf("%s", missing_cell->string);
}
appendPQExpBufferChar(&details, ')');
}
printf("REPMGR_DOWNSTREAM_SERVERS %s: %s | attached=%i, missing=%i\n",
output_check_status(status),
details.data,
expected_nodes_count - missing_nodes_count,
missing_nodes_count);
if (expected_nodes_count - missing_nodes_count)
{
ItemListCell *attached_cell = NULL;
bool first = true;
if (missing_nodes_count)
printf("; ");
printf("attached: ");
for (attached_cell = attached_nodes.head; attached_cell; attached_cell = attached_cell->next)
{
if (first == false)
printf(", ");
else
first = false;
if (first == false)
printf("%s", attached_cell->string);
}
}
printf("\n");
}
break;
case OM_CSV:
@@ -1518,7 +1522,7 @@ do_node_check_upstream(PGconn *conn, OutputMode mode, t_node_info *node_info, Ch
{
case OM_NAGIOS:
{
printf("REPMGR_UPSTREAM_SERVER %s: %s\n",
printf("REPMGR_UPSTREAM_SERVER %s: %s | ",
output_check_status(status),
details.data);
}
@@ -2020,6 +2024,7 @@ do_node_check_missing_slots(PGconn *conn, OutputMode mode, t_node_info *node_inf
return status;
}
CheckStatus
do_node_check_data_directory(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output)
{
@@ -2154,53 +2159,6 @@ do_node_check_data_directory(PGconn *conn, OutputMode mode, t_node_info *node_in
return status;
}
CheckStatus
do_node_check_repmgrd(PGconn *conn, OutputMode mode, t_node_info *node_info, CheckStatusList *list_output)
{
CheckStatus status = CHECK_STATUS_OK;
if (mode == OM_CSV && list_output == NULL)
{
log_error(_("--csv output not provided with --repmgrd option"));
PQfinish(conn);
exit(ERR_BAD_CONFIG);
}
status = get_repmgrd_status(conn);
switch (mode)
{
case OM_OPTFORMAT:
printf("--repmgrd=%s\n",
output_check_status(status));
break;
case OM_NAGIOS:
printf("REPMGRD %s: %s\n",
output_check_status(status),
output_repmgrd_status(status));
break;
case OM_CSV:
case OM_TEXT:
if (list_output != NULL)
{
check_status_list_set(list_output,
"repmgrd",
status,
output_repmgrd_status(status));
}
else
{
printf("%s (%s)\n",
output_check_status(status),
output_repmgrd_status(status));
}
default:
break;
}
return status;
}
/*
* This is not included in the general list output
*/
@@ -2654,13 +2612,6 @@ do_node_rejoin(void)
exit(ERR_BAD_CONFIG);
}
/*
* Emit a notice about the identity of the rejoin target
*/
log_notice(_("rejoin target is node \"%s\" (ID: %i)"),
primary_node_record.node_name,
primary_node_record.node_id);
/* connect to registered primary and check it's not in recovery */
primary_conn = establish_db_connection(primary_node_record.conninfo, false);
@@ -2862,8 +2813,7 @@ do_node_rejoin(void)
log_notice(_("temporarily removing \"standby.signal\""));
log_detail(_("this is required so pg_rewind can fix the unclean shutdown"));
make_standby_signal_path(config_file_options.data_directory,
standby_signal_file_path);
make_standby_signal_path(standby_signal_file_path);
if (unlink(standby_signal_file_path) < 0 && errno != ENOENT)
{
@@ -2888,7 +2838,7 @@ do_node_rejoin(void)
* of whether the pg_rewind operation failed.
*/
log_notice(_("recreating \"standby.signal\""));
write_standby_signal(config_file_options.data_directory);
write_standby_signal();
}
if (ret == false)
@@ -3612,25 +3562,6 @@ copy_file(const char *src_file, const char *dest_file)
}
static const char *
output_repmgrd_status(CheckStatus status)
{
switch (status)
{
case CHECK_STATUS_OK:
return "repmgrd running";
case CHECK_STATUS_WARNING:
return "repmgrd running but paused";
case CHECK_STATUS_CRITICAL:
return "repmgrd not running";
case CHECK_STATUS_UNKNOWN:
return "repmgrd status unknown";
}
return "UNKNOWN";
}
void
do_node_help(void)
{
@@ -3668,12 +3599,11 @@ do_node_help(void)
printf(_(" Following options check an individual status:\n"));
printf(_(" --archive-ready number of WAL files ready for archiving\n"));
printf(_(" --downstream whether all downstream nodes are connected\n"));
printf(_(" --upstream whether the node is connected to its upstream\n"));
printf(_(" --uptream whether the node is connected to its upstream\n"));
printf(_(" --replication-lag replication lag in seconds (standbys only)\n"));
printf(_(" --role check node has expected role\n"));
printf(_(" --slots check for inactive replication slots\n"));
printf(_(" --missing-slots check for missing replication slots\n"));
printf(_(" --repmgrd check if repmgrd is running\n"));
printf(_(" --data-directory-config check repmgr's data directory configuration\n"));
puts("");
@@ -3687,7 +3617,7 @@ do_node_help(void)
printf(_(" --dry-run check that the prerequisites are met for rejoining the node\n" \
" (including usability of \"pg_rewind\" if requested)\n"));
printf(_(" --force-rewind[=VALUE] execute \"pg_rewind\" if necessary\n"));
printf(_(" (PostgreSQL 9.4 - provide full \"pg_rewind\" path)\n"));
printf(_(" (9.3 and 9.4 - provide full \"pg_rewind\" path)\n"));
printf(_(" --config-files comma-separated list of configuration files to retain\n" \
" after executing \"pg_rewind\"\n"));

View File

@@ -1,6 +1,6 @@
/*
* repmgr-action-node.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -3,7 +3,7 @@
*
* Implements primary actions for the repmgr command line utility
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -1,6 +1,6 @@
/*
* repmgr-action-primary.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -2,7 +2,7 @@
* repmgr-action-service.c
*
* Implements repmgrd actions for the repmgr command line utility
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -1,6 +1,6 @@
/*
* repmgr-action-service.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -3,7 +3,7 @@
*
* Implements standby actions for the repmgr command line utility
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -20,8 +20,6 @@
*/
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>
#include "repmgr.h"
#include "dirutil.h"
@@ -30,7 +28,7 @@
#include "repmgr-client-global.h"
#include "repmgr-action-standby.h"
#include "pgbackupapi.h"
typedef struct TablespaceDataListCell
{
@@ -96,8 +94,6 @@ static char barman_command_buf[MAXLEN] = "";
* be run and which of the available users, which will be one
* of the repmgr user, the replication user (if available) or
* the superuser (if available).
*
* This is determined in check_source_server().
*/
static t_user_type SettingsUser = REPMGR_USER;
@@ -114,7 +110,6 @@ static void check_recovery_type(PGconn *conn);
static void initialise_direct_clone(t_node_info *local_node_record, t_node_info *upstream_node_record);
static int run_basebackup(t_node_info *node_record);
static int run_file_backup(t_node_info *node_record);
static int run_pg_backupapi(t_node_info *node_record);
static void copy_configuration_files(bool delete_after_copy);
@@ -178,6 +173,21 @@ do_standby_clone(void)
initialize_conninfo_params(&recovery_conninfo, false);
/*
* --replication-conf-only provided - we'll handle that separately
*/
if (runtime_options.replication_conf_only == true)
{
return _do_create_replication_conf();
}
/*
* conninfo params for the actual upstream node (which might be different
* to the node we're cloning from) to write to recovery.conf
*/
mode = get_standby_clone_mode();
/*
* Copy the provided data directory; if a configuration file was provided,
* use the (mandatory) value from that; if -D/--pgdata was provided, use
@@ -205,19 +215,6 @@ do_standby_clone(void)
exit(ERR_BAD_CONFIG);
}
/*
* --replication-conf-only provided - we'll handle that separately
*/
if (runtime_options.replication_conf_only == true)
{
return _do_create_replication_conf();
}
/*
* conninfo params for the actual upstream node (which might be different
* to the node we're cloning from) to write to recovery.conf
*/
mode = get_standby_clone_mode();
if (mode == barman)
{
@@ -673,15 +670,6 @@ do_standby_clone(void)
log_hint(_("consider using the -c/--fast-checkpoint option"));
}
if (mode == pg_basebackup)
{
/*
* In --dry-run mode, this will just output the pg_basebackup command which
* would be executed.
*/
run_basebackup(&local_node_record);
}
PQfinish(source_conn);
log_info(_("all prerequisites for \"standby clone\" are met"));
@@ -689,18 +677,19 @@ do_standby_clone(void)
exit(SUCCESS);
}
if (mode != barman)
{
initialise_direct_clone(&local_node_record, &upstream_node_record);
}
switch (mode)
{
case pg_basebackup:
initialise_direct_clone(&local_node_record, &upstream_node_record);
log_notice(_("starting backup (using pg_basebackup)..."));
break;
case barman:
log_notice(_("retrieving backup from Barman..."));
break;
case pg_backupapi:
log_notice(_("starting backup (using pg_backupapi)..."));
break;
default:
/* should never reach here */
log_error(_("unknown clone mode"));
@@ -722,9 +711,6 @@ do_standby_clone(void)
case barman:
r = run_file_backup(&local_node_record);
break;
case pg_backupapi:
r = run_pg_backupapi(&local_node_record);
break;
default:
/* should never reach here */
log_error(_("unknown clone mode"));
@@ -818,6 +804,7 @@ do_standby_clone(void)
}
/* Write the recovery.conf file */
if (create_recovery_file(&local_node_record,
&recovery_conninfo,
source_server_version_num,
@@ -849,9 +836,6 @@ do_standby_clone(void)
case barman:
log_notice(_("standby clone (from Barman) complete"));
break;
case pg_backupapi:
log_notice(_("standby clone (from pg_backupapi) complete"));
break;
}
/*
@@ -943,9 +927,6 @@ do_standby_clone(void)
case barman:
appendPQExpBufferStr(&event_details, "barman");
break;
case pg_backupapi:
appendPQExpBufferStr(&event_details, "pg_backupapi");
break;
}
appendPQExpBuffer(&event_details,
@@ -1319,64 +1300,6 @@ _do_create_replication_conf(void)
PQExpBufferData msg;
t_replication_slot slot_info = T_REPLICATION_SLOT_INITIALIZER;
/*
* Check the node record has slot_name set; if not we'll need to
* update it.
*/
if (local_node_record.slot_name[0] == '\0')
{
PGconn *primary_conn = NULL;
create_slot_name(local_node_record.slot_name, local_node_record.node_id);
/* Check we can connect to the primary so we can update the record */
if (get_recovery_type(upstream_conn) == RECTYPE_PRIMARY)
{
primary_conn = upstream_conn;
}
else
{
primary_conn = establish_primary_db_connection(upstream_conn, false);
if (primary_conn == NULL)
{
log_error(_("unable to connect to primary to update slot name for node \"%s\" (ID: %i)"),
local_node_record.node_name,
local_node_record.node_id);
PQfinish(upstream_conn);
termPQExpBuffer(&msg);
exit(ERR_BAD_CONFIG);
}
}
if (runtime_options.dry_run == true)
{
log_info(_("would set \"slot_name\" for node \"%s\" (ID: %i) to \"%s\""),
local_node_record.node_name,
local_node_record.node_id,
local_node_record.slot_name);
}
else
{
bool success = update_node_record_slot_name(primary_conn,
local_node_record.node_id,
local_node_record.slot_name);
if (primary_conn != upstream_conn)
PQfinish(primary_conn);
if (success == false)
{
log_error(_("unable to update slot name for node \"%s\" (ID: %i)"),
local_node_record.node_name,
local_node_record.node_id);
PQfinish(upstream_conn);
exit(ERR_BAD_CONFIG);
}
}
}
record_status = get_slot_record(upstream_conn, local_node_record.slot_name, &slot_info);
/* check if replication slot exists*/
@@ -1557,7 +1480,7 @@ _do_create_replication_conf(void)
}
else
{
if (write_standby_signal(local_data_directory) == false)
if (write_standby_signal() == false)
{
log_error(_("unable to write \"standby.signal\" file"));
}
@@ -2009,7 +1932,7 @@ do_standby_register(void)
/*
* If --upstream-node-id not provided, we're defaulting to the primary as
* upstream node. If local node is available, double-check that it's attached
* to the primary, in case --upstream-node-id was an accidental omission.
* to the primary, in case --upstream-node-id was an accidental ommission.
*
* Currently we'll only do this for newly registered nodes.
*/
@@ -2018,7 +1941,7 @@ do_standby_register(void)
/* only do this if record does not exist */
if (record_status != RECORD_FOUND)
{
log_warning(_("--upstream-node-id not supplied, assuming upstream node is primary (node ID: %i)"),
log_warning(_("--upstream-node-id not supplied, assuming upstream node is primary (node ID %i)"),
primary_node_id);
/* check our standby is connected */
@@ -3357,9 +3280,10 @@ do_standby_follow_internal(PGconn *primary_conn, PGconn *follow_target_conn, t_n
update_node_record_slot_name(primary_conn, config_file_options.node_id, local_node_record.slot_name);
}
if (create_replication_slot(follow_target_conn,
local_node_record.slot_name,
follow_target_node_record,
NULL,
output) == false)
{
log_error("%s", output->data);
@@ -3471,7 +3395,7 @@ do_standby_follow_internal(PGconn *primary_conn, PGconn *follow_target_conn, t_n
goto cleanup;
}
/* In the unlikely event that fails, we'll fall back to a restart */
/* In the unlikley event that fails, we'll fall back to a restart */
log_warning(_("unable to reload server configuration"));
}
@@ -3662,9 +3586,8 @@ do_standby_switchover(void)
PQExpBufferData remote_command_str;
PQExpBufferData command_output;
PQExpBufferData node_rejoin_options;
PQExpBufferData logmsg;
PQExpBufferData errmsg;
PQExpBufferData detailmsg;
PQExpBufferData event_details;
int r,
i;
@@ -3681,9 +3604,6 @@ do_standby_switchover(void)
/* store list of configuration files on the demotion candidate */
KeyValueList remote_config_files = {NULL, NULL};
/* temporary log file for "repmgr node rejoin" on the demotion candidate */
char node_rejoin_log[MAXPGPATH] = "";
NodeInfoList sibling_nodes = T_NODE_INFO_LIST_INITIALIZER;
SiblingNodeStats sibling_nodes_stats = T_SIBLING_NODES_STATS_INITIALIZER;
@@ -3706,7 +3626,7 @@ do_standby_switchover(void)
* SANITY CHECKS
*
* We'll be doing a bunch of operations on the remote server (primary to
* be demoted) - careful checks needed before proceeding.
* be demoted) - careful checks needed before proceding.
*/
local_conn = establish_db_connection(config_file_options.conninfo, true);
@@ -3826,24 +3746,24 @@ do_standby_switchover(void)
* the demotion candidate as the rejoin will fail if we are unable to to write to that.
*/
initPQExpBuffer(&logmsg);
initPQExpBuffer(&errmsg);
initPQExpBuffer(&detailmsg);
if (check_replication_config_owner(PQserverVersion(local_conn),
config_file_options.data_directory,
&logmsg, &detailmsg) == false)
&errmsg, &detailmsg) == false)
{
log_error("%s", logmsg.data);
log_error("%s", errmsg.data);
log_detail("%s", detailmsg.data);
termPQExpBuffer(&logmsg);
termPQExpBuffer(&errmsg);
termPQExpBuffer(&detailmsg);
PQfinish(local_conn);
exit(ERR_BAD_CONFIG);
}
termPQExpBuffer(&logmsg);
termPQExpBuffer(&errmsg);
termPQExpBuffer(&detailmsg);
/* check remote server connection and retrieve its record */
@@ -4188,7 +4108,7 @@ do_standby_switchover(void)
if (command_success == false || command_output.data[0] == '0')
{
log_error(_("expected configuration file not found on the demotion candidate \"%s\" (ID: %i)"),
log_error(_("expected configuration file not found on the demotion candiate \"%s\" (ID: %i)"),
remote_node_record.node_name,
remote_node_record.node_id);
log_detail(_("registered configuration file is \"%s\""),
@@ -4288,7 +4208,7 @@ do_standby_switchover(void)
else if (remote_error == REMOTE_ERROR_CONNINFO_PARSE)
{
/* highly unlikely */
log_detail(_("an error was encountered when parsing the \"conninfo\" parameter in \"repmgr.conf\" on node \"%s\" (ID: %i)"),
log_detail(_("an error was encountered when parsing the \"conninfo\" parameter in \"rempgr.conf\" on node \"%s\" (ID: %i)"),
remote_node_record.node_name,
remote_node_record.node_id);
}
@@ -4791,7 +4711,6 @@ do_standby_switchover(void)
repmgrd_info = (RepmgrdInfo **) pg_malloc0(sizeof(RepmgrdInfo *) * all_nodes.node_count);
log_notice(_("attempting to pause repmgrd on %i nodes"), all_nodes.node_count);
for (cell = all_nodes.head; cell; cell = cell->next)
{
repmgrd_info[i] = pg_malloc0(sizeof(RepmgrdInfo));
@@ -4820,7 +4739,7 @@ do_standby_switchover(void)
unreachable_node_count++;
item_list_append_format(&repmgrd_connection_errors,
_("unable to connect to node \"%s\" (ID: %i):\n%s"),
_("unable to connect to node \"%s\" (ID %i):\n%s"),
cell->node_info->node_name,
cell->node_info->node_id,
PQerrorMessage(cell->node_info->conn));
@@ -4851,9 +4770,8 @@ do_standby_switchover(void)
initPQExpBuffer(&msg);
appendPQExpBuffer(&msg,
_("unable to connect to %i of %i node(s), unable to pause all repmgrd instances"),
unreachable_node_count,
all_nodes.node_count);
_("unable to connect to %i node(s), unable to pause all repmgrd instances"),
unreachable_node_count);
initPQExpBuffer(&detail);
@@ -4904,7 +4822,7 @@ do_standby_switchover(void)
*/
if (repmgrd_info[i]->pg_running == false)
{
log_warning(_("node \"%s\" (ID: %i) unreachable, unable to pause repmgrd"),
log_warning(_("node \"%s\" (ID %i) unreachable, unable to pause repmgrd"),
cell->node_info->node_name,
cell->node_info->node_id);
i++;
@@ -4917,7 +4835,7 @@ do_standby_switchover(void)
*/
if (repmgrd_info[i]->running == false)
{
log_notice(_("repmgrd not running on node \"%s\" (ID: %i), not pausing"),
log_warning(_("repmgrd not running on node \"%s\" (ID %i)"),
cell->node_info->node_name,
cell->node_info->node_id);
i++;
@@ -4938,14 +4856,14 @@ do_standby_switchover(void)
if (runtime_options.dry_run == true)
{
log_info(_("would pause repmgrd on node \"%s\" (ID: %i)"),
log_info(_("would pause repmgrd on node \"%s\" (ID %i)"),
cell->node_info->node_name,
cell->node_info->node_id);
}
else
{
/* XXX check result */
log_debug("pausing repmgrd on node \"%s\" (ID: %i)",
log_debug("pausing repmgrd on node \"%s\" (ID %i)",
cell->node_info->node_name,
cell->node_info->node_id);
@@ -5245,18 +5163,6 @@ do_standby_switchover(void)
format_lsn(replication_info.last_wal_receive_lsn),
format_lsn(remote_last_checkpoint_lsn));
/*
* optionally add a delay before promoting the standby; this is mainly
* useful for testing (e.g. for reappearance of the original primary) and
* is not documented.
*/
if (config_file_options.promote_delay > 0)
{
log_debug("sleeping %i seconds before promoting standby",
config_file_options.promote_delay);
sleep(config_file_options.promote_delay);
}
/*
* Promote standby (local node).
*
@@ -5382,21 +5288,6 @@ do_standby_switchover(void)
pfree(conninfo_normalized);
}
/* */
snprintf(node_rejoin_log, MAXPGPATH,
#if defined(__i386__) || defined(__i386)
"/tmp/node-rejoin.%u.log",
(unsigned)time(NULL)
#else
"/tmp/node-rejoin.%lu.log",
(unsigned long)time(NULL)
#endif
);
appendPQExpBuffer(&remote_command_str,
" > %s 2>&1 && echo \"1\" || echo \"0\"",
node_rejoin_log);
termPQExpBuffer(&node_rejoin_options);
log_debug("executing:\n %s", remote_command_str.data);
@@ -5410,161 +5301,78 @@ do_standby_switchover(void)
termPQExpBuffer(&remote_command_str);
initPQExpBuffer(&logmsg);
initPQExpBuffer(&detailmsg);
/* TODO: verify this node's record was updated correctly */
/* This is failure to execute the ssh command */
if (command_success == false)
{
log_error(_("rejoin failed with error code %i"), r);
switchover_success = false;
appendPQExpBuffer(&logmsg,
_("unable to execute \"repmgr node rejoin\" on demotion candidate \"%s\" (ID: %i)"),
remote_node_record.node_name,
remote_node_record.node_id);
appendPQExpBufferStr(&detailmsg,
command_output.data);
create_event_notification_extended(local_conn,
&config_file_options,
config_file_options.node_id,
"standby_switchover",
false,
command_output.data,
&event_info);
}
else
{
standy_join_status join_success = JOIN_UNKNOWN;
PQExpBufferData event_details;
standy_join_status join_success = check_standby_join(local_conn,
&local_node_record,
&remote_node_record);
/* "rempgr node rejoin" failed on the demotion candidate */
if (command_output.data[0] == '0')
initPQExpBuffer(&event_details);
switch (join_success) {
case JOIN_FAIL_NO_PING:
appendPQExpBuffer(&event_details,
_("node \"%s\" (ID: %i) promoted to primary, but demote node \"%s\" (ID: %i) did not beome available"),
config_file_options.node_name,
config_file_options.node_id,
remote_node_record.node_name,
remote_node_record.node_id);
switchover_success = false;
break;
case JOIN_FAIL_NO_REPLICATION:
appendPQExpBuffer(&event_details,
_("node \"%s\" (ID: %i) promoted to primary, but demote node \"%s\" (ID: %i) did not connect to the new primary"),
config_file_options.node_name,
config_file_options.node_id,
remote_node_record.node_name,
remote_node_record.node_id);
switchover_success = false;
break;
case JOIN_SUCCESS:
appendPQExpBuffer(&event_details,
_("node \"%s\" (ID: %i) promoted to primary, node \"%s\" (ID: %i) demoted to standby"),
config_file_options.node_name,
config_file_options.node_id,
remote_node_record.node_name,
remote_node_record.node_id);
}
create_event_notification_extended(local_conn,
&config_file_options,
config_file_options.node_id,
"standby_switchover",
switchover_success,
event_details.data,
&event_info);
if (switchover_success == true)
{
appendPQExpBuffer(&logmsg,
_("execution of \"repmgr node rejoin\" on demotion candidate \"%s\" (ID: %i) failed"),
remote_node_record.node_name,
remote_node_record.node_id);
/*
* Speculatively check if the demotion candidate has been restarted, e.g. by
* an external watchdog process which isn't aware a switchover is happening.
* This falls into the category "thing outside of our control which shouldn't
* happen, but if it does, make it easier to find out what happened".
*/
remote_conn = establish_db_connection(remote_node_record.conninfo, false);
if (PQstatus(remote_conn) == CONNECTION_OK)
{
if (get_recovery_type(remote_conn) == RECTYPE_PRIMARY)
{
appendPQExpBuffer(&detailmsg,
_("PostgreSQL instance on demotion candidate \"%s\" (ID: %i) is running as a primary\n"),
remote_node_record.node_name,
remote_node_record.node_id);
log_warning("%s", detailmsg.data);
}
}
PQfinish(remote_conn);
appendPQExpBuffer(&detailmsg,
"check log file \"%s\" on \"%s\" for details",
node_rejoin_log,
remote_node_record.node_name);
switchover_success = false;
join_success = JOIN_COMMAND_FAIL;
log_notice("%s", event_details.data);
}
else
{
join_success = check_standby_join(local_conn,
&local_node_record,
&remote_node_record);
switch (join_success) {
case JOIN_FAIL_NO_PING:
appendPQExpBuffer(&logmsg,
_("node \"%s\" (ID: %i) promoted to primary, but demotion candidate \"%s\" (ID: %i) did not become available"),
config_file_options.node_name,
config_file_options.node_id,
remote_node_record.node_name,
remote_node_record.node_id);
switchover_success = false;
break;
case JOIN_FAIL_NO_REPLICATION:
appendPQExpBuffer(&logmsg,
_("node \"%s\" (ID: %i) promoted to primary, but demotion candidate \"%s\" (ID: %i) did not connect to the new primary"),
config_file_options.node_name,
config_file_options.node_id,
remote_node_record.node_name,
remote_node_record.node_id);
switchover_success = false;
break;
case JOIN_SUCCESS:
appendPQExpBuffer(&logmsg,
_("node \"%s\" (ID: %i) promoted to primary, node \"%s\" (ID: %i) demoted to standby"),
config_file_options.node_name,
config_file_options.node_id,
remote_node_record.node_name,
remote_node_record.node_id);
break;
/* check_standby_join() does not return this */
case JOIN_COMMAND_FAIL:
break;
/* should never happen*/
case JOIN_UNKNOWN:
appendPQExpBuffer(&logmsg,
"unable to determine success of node rejoin action for demotion candidate \"%s\" (ID: %i)",
remote_node_record.node_name,
remote_node_record.node_id);
switchover_success = false;
break;
}
if (switchover_success == false)
{
appendPQExpBuffer(&detailmsg,
"check the PostgreSQL log file on demotion candidate \"%s\" (ID: %i)",
remote_node_record.node_name,
remote_node_record.node_id);
}
log_error("%s", event_details.data);
}
termPQExpBuffer(&event_details);
}
if (switchover_success == true)
{
/* TODO: verify demotion candidates's node record was updated correctly */
log_notice("%s", logmsg.data);
}
else
{
log_error("%s", logmsg.data);
}
initPQExpBuffer(&event_details);
appendPQExpBufferStr(&event_details, logmsg.data);
if (detailmsg.data[0] != '\0')
{
log_detail("%s", detailmsg.data);
appendPQExpBuffer(&event_details, "\n%s",
detailmsg.data);
}
create_event_notification_extended(local_conn,
&config_file_options,
config_file_options.node_id,
"standby_switchover",
switchover_success,
event_details.data,
&event_info);
termPQExpBuffer(&event_details);
termPQExpBuffer(&logmsg);
termPQExpBuffer(&detailmsg);
termPQExpBuffer(&command_output);
/*
* If --siblings-follow specified, attempt to make them follow the new
* primary
@@ -5677,7 +5485,7 @@ do_standby_switchover(void)
if (repmgrd_info[i]->paused == true && runtime_options.repmgrd_force_unpause == false)
{
log_debug("repmgrd on node \"%s\" (ID: %i) paused before switchover, --repmgrd-force-unpause not provided, not unpausing",
log_debug("repmgrd on node \"%s\" (ID %i) paused before switchover, --repmgrd-force-unpause not provided, not unpausing",
cell->node_info->node_name,
cell->node_info->node_id);
@@ -5685,7 +5493,7 @@ do_standby_switchover(void)
continue;
}
log_debug("unpausing repmgrd on node \"%s\" (ID: %i)",
log_debug("unpausing repmgrd on node \"%s\" (ID %i)",
cell->node_info->node_name,
cell->node_info->node_id);
@@ -5696,7 +5504,7 @@ do_standby_switchover(void)
if (repmgrd_pause(cell->node_info->conn, false) == false)
{
item_list_append_format(&repmgrd_unpause_errors,
_("unable to unpause node \"%s\" (ID: %i)"),
_("unable to unpause node \"%s\" (ID %i)"),
cell->node_info->node_name,
cell->node_info->node_id);
error_node_count++;
@@ -5705,7 +5513,7 @@ do_standby_switchover(void)
else
{
item_list_append_format(&repmgrd_unpause_errors,
_("unable to connect to node \"%s\" (ID: %i):\n%s"),
_("unable to connect to node \"%s\" (ID %i):\n%s"),
cell->node_info->node_name,
cell->node_info->node_id,
PQerrorMessage(cell->node_info->conn));
@@ -5793,18 +5601,20 @@ check_source_server()
}
/*
* The server version check will also serve as a sanity-check that we can
* actually execute queries on this connection.
* If a connection was established, perform some sanity checks on the
* provided upstream connection.
*/
source_server_version_num = check_server_version(source_conn, "primary", true, NULL);
/*
* The cluster size is nice to have, but not essential to know, so only display
* something if the user has sufficient permissions to retrieve the size of
* all databases.
* It's not essential to know the cluster size, but useful to sanity-check
* we can actually run a query before going any further.
*/
if (get_cluster_size(source_conn, cluster_size) == true)
log_detail(_("current installation size is %s"),
if (get_cluster_size(source_conn, cluster_size) == false)
exit(ERR_DB_QUERY);
log_detail(_("current installation size is %s"),
cluster_size);
/*
@@ -6987,13 +6797,6 @@ run_basebackup(t_node_info *node_record)
termPQExpBuffer(&params);
if (runtime_options.dry_run == true)
{
log_info(_("would execute:\n %s"), script.data);
termPQExpBuffer(&script);
return SUCCESS;
}
log_info(_("executing:\n %s"), script.data);
/*
@@ -7727,7 +7530,7 @@ stop_backup:
if (record_status == RECORD_FOUND)
{
log_verbose(LOG_INFO,
_("replication slot \"%s\" already exists on upstream node %i"),
_("replication slot \"%s\" aleady exists on upstream node %i"),
local_node_record->slot_name,
upstream_node_id);
}
@@ -7779,117 +7582,6 @@ stop_backup:
}
/*
* Perform a call to pg_backupapi endpoint to ask barman to write the backup
* for us. This will ensure that no matter the format on-disk of new backups,
* barman will always find a way how to read and write them.
* From repmgr 4 this is only used for Barman backups.
*/
static int
run_pg_backupapi(t_node_info *local_node_record)
{
int r = ERR_PGBACKUPAPI_SERVICE;
long http_return_code = 0;
short seconds_to_sleep = 3;
operation_task *task = malloc(sizeof(operation_task));
CURL *curl = curl_easy_init();
CURLcode ret;
check_pg_backupapi_standby_clone_options();
task->host = malloc(strlen(config_file_options.pg_backupapi_host)+1);
task->remote_ssh_command = malloc(strlen(config_file_options.pg_backupapi_remote_ssh_command)+1);
task->node_name = malloc(strlen(config_file_options.pg_backupapi_node_name)+1);
task->operation_type = malloc(strlen(DEFAULT_STANDBY_PG_BACKUPAPI_OP_TYPE)+1);
task->backup_id = malloc(strlen(config_file_options.pg_backupapi_backup_id)+1);
task->destination_directory = malloc(strlen(local_data_directory)+1);
task->operation_id = malloc(MAX_BUFFER_LENGTH);
task->operation_status = malloc(MAX_BUFFER_LENGTH);
strcpy(task->host, config_file_options.pg_backupapi_host);
strcpy(task->remote_ssh_command, config_file_options.pg_backupapi_remote_ssh_command);
strcpy(task->node_name, config_file_options.pg_backupapi_node_name);
strcpy(task->operation_type, DEFAULT_STANDBY_PG_BACKUPAPI_OP_TYPE);
strcpy(task->backup_id, config_file_options.pg_backupapi_backup_id);
strcpy(task->destination_directory, local_data_directory);
strcpy(task->operation_id, "\0");
ret = create_new_task(curl, task);
if ((ret != CURLE_OK) || (strlen(task->operation_id) == 0)) {
curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_return_code);
if (499 > http_return_code && http_return_code >= 400) {
log_error("Cannot find backup '%s' for node '%s'.", task->backup_id, task->node_name);
} else {
log_error("whilst reaching out pg_backup service: %s\n", curl_easy_strerror(ret));
}
}
else
{
log_info("Success creating the task: operation id '%s'", task->operation_id);
//We call init again because previous call included POST calls
curl_easy_cleanup(curl);
curl = curl_easy_init();
while (true)
{
ret = get_status_of_operation(curl, task);
if (strlen(task->operation_status) == 0) {
log_info("Retrying...");
}
else
{
log_info("status %s", task->operation_status);
}
if (strcmp(task->operation_status, "FAILED") == 0) {
break;
}
if (strcmp(task->operation_status, "DONE") == 0) {
r = SUCCESS;
break;
}
sleep(seconds_to_sleep);
}
}
curl_easy_cleanup(curl);
free(task);
return r;
}
/*
* pg_backupapi mode is enabled when config_file_options.pg_backupapi_host is set hence, we
* should also check the other required variables too.
*/
void check_pg_backupapi_standby_clone_options() {
bool error = false;
if (*config_file_options.pg_backupapi_remote_ssh_command == '\0') {
log_hint("Check config: remote ssh command is required");
error = true;
}
if (*config_file_options.pg_backupapi_node_name == '\0') {
log_hint("Check config: node name is required");
error = true;
}
if (*config_file_options.pg_backupapi_backup_id == '\0') {
log_hint("Check config: backup_id is required");
error = true;
}
if (error == true) {
log_error("Please fix the errors and try again");
exit(ERR_BAD_CONFIG);
}
}
static char *
make_barman_ssh_command(char *buf)
{
@@ -8268,9 +7960,9 @@ create_recovery_file(t_node_info *node_record, t_conninfo_param_list *primary_co
free(escaped);
}
/*
* Caller requests the generated file to be written into a buffer
*/
if (as_file == false)
{
/* create file in buffer */
@@ -8290,17 +7982,20 @@ create_recovery_file(t_node_info *node_record, t_conninfo_param_list *primary_co
return true;
}
/*
* PostgreSQL 12 and later: modify postgresql.auto.conf
*
*/
if (server_version_num >= 120000)
{
if (modify_auto_conf(dest, &recovery_config) == false)
{
return false;
}
if (write_standby_signal(dest) == false)
if (write_standby_signal() == false)
{
return false;
}
@@ -9293,7 +8988,7 @@ do_standby_help(void)
printf(_(" --dry-run perform checks etc. but don't actually execute switchover\n"));
printf(_(" -F, --force ignore warnings and continue anyway\n"));
printf(_(" --force-rewind[=VALUE] use \"pg_rewind\" to reintegrate the old primary if necessary\n"));
printf(_(" (PostgreSQL 9.4 - provide \"pg_rewind\" path)\n"));
printf(_(" (9.3 and 9.4 - provide \"pg_rewind\" path)\n"));
printf(_(" -R, --remote-user=USERNAME database server username for SSH operations (default: \"%s\")\n"), runtime_options.username);
printf(_(" -S, --superuser=USERNAME superuser to use, if repmgr user is not superuser\n"));

View File

@@ -1,6 +1,6 @@
/*
* repmgr-action-standby.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -30,6 +30,6 @@ extern void do_standby_help(void);
extern bool do_standby_follow_internal(PGconn *primary_conn, PGconn *follow_target_conn, t_node_info *follow_target_node_record, PQExpBufferData *output, int general_error_code, int *error_code);
void check_pg_backupapi_standby_clone_options(void);
#endif /* _REPMGR_ACTION_STANDBY_H_ */

View File

@@ -3,7 +3,7 @@
*
* Implements witness actions for the repmgr command line utility
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -1,6 +1,6 @@
/*
* repmgr-action-witness.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -1,6 +1,6 @@
/*
* repmgr-client-global.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -120,7 +120,6 @@ typedef struct
bool missing_slots;
bool has_passfile;
bool replication_connection;
bool repmgrd;
bool data_directory_config;
bool replication_config_owner;
bool db_connection;
@@ -176,7 +175,7 @@ typedef struct
/* "node status" options */ \
false, \
/* "node check" options */ \
false, false, false, false, false, false, false, false, false, false, false, false, false, \
false, false, false, false, false, false, false, false, false, false, false, false, \
/* "node rejoin" options */ \
"", \
/* "node service" options */ \
@@ -193,8 +192,7 @@ typedef struct
typedef enum
{
barman,
pg_basebackup,
pg_backupapi
pg_basebackup
} standy_clone_mode;
typedef enum
@@ -221,9 +219,7 @@ typedef enum
typedef enum
{
JOIN_UNKNOWN = -1,
JOIN_SUCCESS,
JOIN_COMMAND_FAIL,
JOIN_FAIL_NO_PING,
JOIN_FAIL_NO_REPLICATION
} standy_join_status;
@@ -286,8 +282,8 @@ extern void get_node_config_directory(char *config_dir_buf);
extern void get_node_data_directory(char *data_dir_buf);
extern void init_node_record(t_node_info *node_record);
extern bool can_use_pg_rewind(PGconn *conn, const char *data_directory, PQExpBufferData *reason);
extern void make_standby_signal_path(const char *data_dir, char *buf);
extern bool write_standby_signal(const char *data_dir);
extern void make_standby_signal_path(char *buf);
extern bool write_standby_signal(void);
extern bool create_replication_slot(PGconn *conn, char *slot_name, t_node_info *upstream_node_record, PQExpBufferData *error_msg);
extern bool drop_replication_slot_if_exists(PGconn *conn, int node_id, char *slot_name);

View File

@@ -1,7 +1,7 @@
/*
* repmgr-client.c - Command interpreter for the repmgr package
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* This module is a command-line utility to easily setup a cluster of
* hot standby servers for an HA environment
@@ -51,7 +51,6 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <pwd.h>
#include <unistd.h>
#include <sys/stat.h>
#include <signal.h>
@@ -90,22 +89,17 @@ char pg_bindir[MAXPGPATH] = "";
*/
t_node_info target_node_info = T_NODE_INFO_INITIALIZER;
/* set by the first call to _determine_replication_slot_user() */
/* used by create_replication_slot() */
static t_user_type ReplicationSlotUser = USER_TYPE_UNKNOWN;
/* Collate command line errors and warnings here for friendlier reporting */
static ItemList cli_errors = {NULL, NULL};
static ItemList cli_warnings = {NULL, NULL};
static void _determine_replication_slot_user(PGconn *conn,
t_node_info *upstream_node_record,
char **replication_user);
static PGconn *_get_replication_slot_connection(PGconn *conn,
char *replication_user,
bool *use_replication_protocol);
int
main(int argc, char **argv)
{
@@ -128,7 +122,7 @@ main(int argc, char **argv)
/*
* Tell the logger we're a command-line program - this will ensure any
* output logged before the logger is initialized will be formatted
* correctly. Can be overridden with "--log-to-file".
* correctly. Can be overriden with "--log-to-file".
*/
logger_output_mode = OM_COMMAND_LINE;
@@ -555,10 +549,6 @@ main(int argc, char **argv)
runtime_options.data_directory_config = true;
break;
case OPT_REPMGRD:
runtime_options.repmgrd = true;
break;
case OPT_REPLICATION_CONFIG_OWNER:
runtime_options.replication_config_owner = true;
break;
@@ -2745,7 +2735,7 @@ do_help(void)
*
* Note:
* This is one of two places where superuser rights are required.
* We should also consider possible scenarios where a non-superuser
* We should also consider possible scenarious where a non-superuser
* has sufficient privileges to install the extension.
*/
@@ -2780,7 +2770,7 @@ create_repmgr_extension(PGconn *conn)
log_detail(_("version %s is installed but newer version %s is available"),
extversions.installed_version,
extversions.default_version);
log_hint(_("update the installed extension version by executing \"ALTER EXTENSION repmgr UPDATE\" in the repmgr database"));
log_hint(_("update the installed extension version by executing \"ALTER EXTENSION repmgr UPDATE\""));
return false;
case REPMGR_INSTALLED:
@@ -2946,7 +2936,7 @@ check_server_version(PGconn *conn, char *server_type, bool exit_on_error, char *
* PostgreSQL from a particular PostgreSQL release onwards (e.g. 4.4 with PostgreSQL
* 12 and later due to recovery.conf removal), set MAX_UNSUPPORTED_VERSION and
* MAX_UNSUPPORTED_VERSION_NUM in "repmgr.h" to define the first PostgreSQL
* version which can't be supported.
* version which can't be suppored.
*/
#ifdef MAX_UNSUPPORTED_VERSION_NUM
if (conn_server_version_num >= MAX_UNSUPPORTED_VERSION_NUM)
@@ -3096,14 +3086,9 @@ get_standby_clone_mode(void)
if (*config_file_options.barman_host != '\0' && runtime_options.without_barman == false)
mode = barman;
else {
if (*config_file_options.pg_backupapi_host != '\0') {
log_info("Attempting to use `pg_backupapi` new restore mode");
mode = pg_backupapi;
}
else
mode = pg_basebackup;
}
else
mode = pg_basebackup;
return mode;
}
@@ -3197,11 +3182,6 @@ copy_remote_files(char *host, char *remote_user, char *remote_path,
" --exclude=pg_xlog/* --exclude=pg_log/*");
}
/*
* From PostgreSQL 15, the core server no longer uses pg_stat_tmp,
* but some extensions (e.g. pg_stat_statements) may still do, so
* keep excluding it.
*/
appendPQExpBufferStr(&rsync_flags,
" --exclude=pg_stat_tmp/*");
@@ -3639,8 +3619,8 @@ can_use_pg_rewind(PGconn *conn, const char *data_directory, PQExpBufferData *rea
/* "full_page_writes" must be on in any case */
if (guc_set(conn, "full_page_writes", "=", "off"))
{
appendPQExpBufferStr(reason,
_("\"full_page_writes\" must be set to \"on\""));
appendPQExpBuffer(reason,
_("\"full_page_writes\" must be set to \"on\""));
can_use = false;
}
@@ -3658,18 +3638,18 @@ can_use_pg_rewind(PGconn *conn, const char *data_directory, PQExpBufferData *rea
if (data_checksum_version == UNKNOWN_DATA_CHECKSUM_VERSION)
{
if (can_use == false)
appendPQExpBufferStr(reason, "; ");
appendPQExpBuffer(reason, "; ");
appendPQExpBufferStr(reason,
_("\"wal_log_hints\" is set to \"off\" but unable to determine data checksum version"));
appendPQExpBuffer(reason,
_("\"wal_log_hints\" is set to \"off\" but unable to determine data checksum version"));
can_use = false;
}
else if (data_checksum_version == 0)
{
if (can_use == false)
appendPQExpBufferStr(reason, "; ");
appendPQExpBuffer(reason, "; ");
appendPQExpBufferStr(reason,
appendPQExpBuffer(reason,
_("\"wal_log_hints\" is set to \"off\" and data checksums are disabled"));
can_use = false;
@@ -3681,11 +3661,11 @@ can_use_pg_rewind(PGconn *conn, const char *data_directory, PQExpBufferData *rea
void
make_standby_signal_path(const char *data_dir, char *buf)
make_standby_signal_path(char *buf)
{
snprintf(buf, MAXPGPATH,
"%s/%s",
data_dir,
config_file_options.data_directory,
STANDBY_SIGNAL_FILE);
}
@@ -3693,15 +3673,13 @@ make_standby_signal_path(const char *data_dir, char *buf)
* create standby.signal (PostgreSQL 12 and later)
*/
bool
write_standby_signal(const char *data_dir)
write_standby_signal(void)
{
char standby_signal_file_path[MAXPGPATH] = "";
FILE *file;
mode_t um;
Assert(data_dir != NULL);
make_standby_signal_path(data_dir, standby_signal_file_path);
make_standby_signal_path(standby_signal_file_path);
/* Set umask to 0600 */
um = umask((~(S_IRUSR | S_IWUSR)) & (S_IRWXG | S_IRWXO));
@@ -3749,7 +3727,6 @@ create_replication_slot(PGconn *conn, char *slot_name, t_node_info *upstream_nod
char *replication_user = NULL;
_determine_replication_slot_user(conn, upstream_node_record, &replication_user);
/*
* If called in --dry-run context, if the replication slot user is not the
* repmgr user, attempt to validate the connection.
@@ -3761,7 +3738,7 @@ create_replication_slot(PGconn *conn, char *slot_name, t_node_info *upstream_nod
case USER_TYPE_UNKNOWN:
log_error("unable to determine user for replication slot creation");
return false;
case REPMGR_USER:
case REPMGR_USER:
log_info(_("replication slots will be created by user \"%s\""),
PQuser(conn));
return true;
@@ -3807,12 +3784,65 @@ create_replication_slot(PGconn *conn, char *slot_name, t_node_info *upstream_nod
PQfinish(superuser_conn);
}
}
}
slot_conn = _get_replication_slot_connection(conn, replication_user, &use_replication_protocol);
/*
* If we can't create a replication slot with the connection provided to
* the function, create an connection with appropriate permissions.
*/
switch (ReplicationSlotUser)
{
case USER_TYPE_UNKNOWN:
log_error("unable to determine user for replication slot creation");
return false;
case REPMGR_USER:
slot_conn = conn;
log_info(_("creating replication slot as user \"%s\""),
PQuser(conn));
break;
if (slot_conn == NULL)
return false;
case REPLICATION_USER_NODE:
case REPLICATION_USER_OPT:
{
slot_conn = duplicate_connection(conn,
replication_user,
true);
if (slot_conn == NULL || PQstatus(slot_conn) != CONNECTION_OK)
{
log_error(_("unable to create replication connection as user \"%s\""),
runtime_options.replication_user);
log_detail("%s", PQerrorMessage(slot_conn));
PQfinish(slot_conn);
return false;
}
use_replication_protocol = true;
log_info(_("creating replication slot as replication user \"%s\""),
replication_user);
}
break;
case SUPERUSER:
{
slot_conn = duplicate_connection(conn,
runtime_options.superuser,
false);
if (slot_conn == NULL || PQstatus(slot_conn )!= CONNECTION_OK)
{
log_error(_("unable to create super connection as user \"%s\""),
runtime_options.superuser);
log_detail("%s", PQerrorMessage(slot_conn));
PQfinish(slot_conn);
return false;
}
log_info(_("creating replication slot as superuser \"%s\""),
runtime_options.superuser);
}
break;
}
if (use_replication_protocol == true)
{
@@ -3855,53 +3885,34 @@ drop_replication_slot_if_exists(PGconn *conn, int node_id, char *slot_name)
if (record_status != RECORD_FOUND)
{
/* no slot, no problem */
/* this is not a bad good thing */
log_verbose(LOG_INFO,
_("slot \"%s\" does not exist on node %i, nothing to remove"),
slot_name, node_id);
return true;
}
if (slot_info.active == true)
if (slot_info.active == false)
{
/*
* If an active replication slot exists, bail out as we have a problem
* we can't solve here.
*/
log_warning(_("replication slot \"%s\" is still active on node %i"), slot_name, node_id);
success = false;
}
else
{
/*
* Create the appropriate connection with which to drop the slot
*/
bool use_replication_protocol = false;
PGconn *slot_conn = _get_replication_slot_connection(conn,
replication_user,
&use_replication_protocol);
if (use_replication_protocol == true)
{
success = drop_replication_slot_replprot(slot_conn, slot_name);
}
else
{
success = drop_replication_slot_sql(slot_conn, slot_name);
}
if (success == true)
if (drop_replication_slot_sql(conn, slot_name) == true)
{
log_notice(_("replication slot \"%s\" deleted on node %i"), slot_name, node_id);
}
else
{
log_error(_("unable to delete replication slot \"%s\" on node %i"), slot_name, node_id);
success = false;
}
}
if (slot_conn != conn)
PQfinish(slot_conn);
/*
* If an active replication slot exists, call Houston as we have a
* problem.
*/
else
{
log_warning(_("replication slot \"%s\" is still active on node %i"), slot_name, node_id);
success = false;
}
return success;
@@ -3963,88 +3974,10 @@ _determine_replication_slot_user(PGconn *conn, t_node_info *upstream_node_record
ReplicationSlotUser = REPLICATION_USER_NODE;
*replication_user = upstream_node_record->repluser;
}
else
{
/* This should never happen */
log_error("unable to determine replication slot user");
if (upstream_node_record != NULL)
{
log_debug("%i %s %s", upstream_node_record->node_id, upstream_node_record->repluser, PQuser(conn));
}
else
{
log_debug("upstream_node_record not provided");
}
}
}
}
static PGconn *
_get_replication_slot_connection(PGconn *conn, char *replication_user, bool *use_replication_protocol)
{
PGconn *slot_conn = NULL;
/*
* If we can't create a replication slot with the connection provided to
* the function, create an connection with appropriate permissions.
*/
switch (ReplicationSlotUser)
{
case USER_TYPE_UNKNOWN:
log_error("unable to determine user for managing replication slots");
return NULL;
case REPMGR_USER:
slot_conn = conn;
log_verbose(LOG_INFO, _("managing replication slot as user \"%s\""),
PQuser(conn));
break;
case REPLICATION_USER_NODE:
case REPLICATION_USER_OPT:
{
slot_conn = duplicate_connection(conn,
replication_user,
true);
if (slot_conn == NULL || PQstatus(slot_conn) != CONNECTION_OK)
{
log_error(_("unable to manage replication connection as replication user \"%s\""),
runtime_options.replication_user);
log_detail("%s", PQerrorMessage(slot_conn));
PQfinish(slot_conn);
return NULL;
}
*use_replication_protocol = true;
log_verbose(LOG_INFO, _("managing replication slot as replication user \"%s\""),
replication_user);
}
break;
case SUPERUSER:
{
slot_conn = duplicate_connection(conn,
runtime_options.superuser,
false);
if (slot_conn == NULL || PQstatus(slot_conn )!= CONNECTION_OK)
{
log_error(_("unable to create superuser connection as user \"%s\""),
runtime_options.superuser);
log_detail("%s", PQerrorMessage(slot_conn));
PQfinish(slot_conn);
return NULL;
}
log_verbose(LOG_INFO, _("creating replication slot as superuser \"%s\""),
runtime_options.superuser);
}
break;
}
return slot_conn;
}
bool
check_replication_slots_available(int node_id, PGconn* conn)
{
@@ -4153,7 +4086,7 @@ check_standby_join(PGconn *upstream_conn, t_node_info *upstream_node_record, t_n
if (node_attached == NODE_NOT_ATTACHED)
{
log_detail(_("node \"%s\" (ID: %i) is currently attached to its upstream node in state \"%s\""),
log_detail(_("node \"%s\" (ID: %i) is currrently attached to its upstream node in state \"%s\""),
upstream_node_record->node_name,
standby_node_record->node_id,
node_state);

View File

@@ -1,6 +1,6 @@
/*
* repmgr-client.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -100,7 +100,6 @@
#define OPT_DB_CONNECTION 1047
#define OPT_VERIFY_BACKUP 1048
#define OPT_RECOVERY_MIN_APPLY_DELAY 1049
#define OPT_REPMGRD 1050
/* These options are for internal use only */
#define OPT_CONFIG_ARCHIVE_DIR 2001
@@ -194,7 +193,6 @@ static struct option long_options[] =
{"role", no_argument, NULL, OPT_ROLE},
{"slots", no_argument, NULL, OPT_SLOTS},
{"missing-slots", no_argument, NULL, OPT_MISSING_SLOTS},
{"repmgrd", no_argument, NULL, OPT_REPMGRD},
{"has-passfile", no_argument, NULL, OPT_HAS_PASSFILE},
{"replication-connection", no_argument, NULL, OPT_REPL_CONN},
{"data-directory-config", no_argument, NULL, OPT_DATA_DIRECTORY_CONFIG},

125
repmgr.c
View File

@@ -1,7 +1,7 @@
/*
* repmgr.c - repmgr extension
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* This is the actual extension code; see repmgr-client.c for the code which
* generates the repmgr binary
@@ -80,36 +80,67 @@ typedef struct repmgrdSharedState
static repmgrdSharedState *shared_state = NULL;
#if (PG_VERSION_NUM >= 150000)
static shmem_request_hook_type prev_shmem_request_hook = NULL;
#endif
static shmem_startup_hook_type prev_shmem_startup_hook = NULL;
void _PG_init(void);
#if (PG_VERSION_NUM >= 150000)
static void repmgr_shmem_request(void);
#endif
void _PG_init(void);
void _PG_fini(void);
static void repmgr_shmem_startup(void);
PG_FUNCTION_INFO_V1(repmgr_set_local_node_id);
PG_FUNCTION_INFO_V1(repmgr_get_local_node_id);
PG_FUNCTION_INFO_V1(repmgr_standby_set_last_updated);
PG_FUNCTION_INFO_V1(repmgr_standby_get_last_updated);
PG_FUNCTION_INFO_V1(repmgr_set_upstream_last_seen);
PG_FUNCTION_INFO_V1(repmgr_get_upstream_last_seen);
PG_FUNCTION_INFO_V1(repmgr_get_upstream_node_id);
PG_FUNCTION_INFO_V1(repmgr_set_upstream_node_id);
PG_FUNCTION_INFO_V1(repmgr_notify_follow_primary);
PG_FUNCTION_INFO_V1(repmgr_get_new_primary);
PG_FUNCTION_INFO_V1(repmgr_reset_voting_status);
Datum set_local_node_id(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(set_local_node_id);
Datum get_local_node_id(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(get_local_node_id);
Datum standby_set_last_updated(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(standby_set_last_updated);
Datum standby_get_last_updated(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(standby_get_last_updated);
Datum set_upstream_last_seen(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(set_upstream_last_seen);
Datum get_upstream_last_seen(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(get_upstream_last_seen);
Datum get_upstream_node_id(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(get_upstream_node_id);
Datum set_upstream_node_id(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(set_upstream_node_id);
Datum notify_follow_primary(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(notify_follow_primary);
Datum get_new_primary(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(get_new_primary);
Datum reset_voting_status(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(reset_voting_status);
Datum set_repmgrd_pid(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(set_repmgrd_pid);
Datum get_repmgrd_pid(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(get_repmgrd_pid);
Datum get_repmgrd_pidfile(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(get_repmgrd_pidfile);
Datum repmgrd_is_running(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(repmgrd_is_running);
Datum repmgrd_pause(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(repmgrd_pause);
Datum repmgrd_is_paused(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(repmgrd_is_paused);
PG_FUNCTION_INFO_V1(repmgr_get_wal_receiver_pid);
Datum get_wal_receiver_pid(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(get_wal_receiver_pid);
/*
@@ -121,47 +152,35 @@ _PG_init(void)
if (!process_shared_preload_libraries_in_progress)
return;
#if (PG_VERSION_NUM < 150000)
RequestAddinShmemSpace(MAXALIGN(sizeof(repmgrdSharedState)));
#if (PG_VERSION_NUM >= 90600)
RequestNamedLWLockTranche(TRANCHE_NAME, 1);
#else
RequestAddinLWLocks(1);
#endif
#endif
/*
* Install hooks.
*/
#if (PG_VERSION_NUM >= 150000)
prev_shmem_request_hook = shmem_request_hook;
shmem_request_hook = repmgr_shmem_request;
#endif
prev_shmem_startup_hook = shmem_startup_hook;
shmem_startup_hook = repmgr_shmem_startup;
}
#if (PG_VERSION_NUM >= 150000)
/*
* shmem_requst_hook: request shared memory
* Module unload callback
*/
static void
repmgr_shmem_request(void)
void
_PG_fini(void)
{
if (prev_shmem_request_hook)
prev_shmem_request_hook();
RequestAddinShmemSpace(MAXALIGN(sizeof(repmgrdSharedState)));
RequestNamedLWLockTranche(TRANCHE_NAME, 1);
/* Uninstall hook */
shmem_startup_hook = prev_shmem_startup_hook;
}
#endif
/*
* shmem_startup hook: allocate or attach to shared memory
* shmem_startup hook: allocate or attach to shared memory,
*/
static void
repmgr_shmem_startup(void)
@@ -175,7 +194,7 @@ repmgr_shmem_startup(void)
shared_state = NULL;
/*
* Create or attach to the shared memory state
* Create or attach to the shared memory state, including hash table
*/
LWLockAcquire(AddinShmemInitLock, LW_EXCLUSIVE);
@@ -214,7 +233,7 @@ repmgr_shmem_startup(void)
/* ==================== */
Datum
repmgr_set_local_node_id(PG_FUNCTION_ARGS)
set_local_node_id(PG_FUNCTION_ARGS)
{
int local_node_id = UNKNOWN_NODE_ID;
int stored_node_id = UNKNOWN_NODE_ID;
@@ -284,7 +303,7 @@ repmgr_set_local_node_id(PG_FUNCTION_ARGS)
Datum
repmgr_get_local_node_id(PG_FUNCTION_ARGS)
get_local_node_id(PG_FUNCTION_ARGS)
{
int local_node_id = UNKNOWN_NODE_ID;
@@ -301,7 +320,7 @@ repmgr_get_local_node_id(PG_FUNCTION_ARGS)
/* update and return last updated with current timestamp */
Datum
repmgr_standby_set_last_updated(PG_FUNCTION_ARGS)
standby_set_last_updated(PG_FUNCTION_ARGS)
{
TimestampTz last_updated = GetCurrentTimestamp();
@@ -318,7 +337,7 @@ repmgr_standby_set_last_updated(PG_FUNCTION_ARGS)
/* get last updated timestamp */
Datum
repmgr_standby_get_last_updated(PG_FUNCTION_ARGS)
standby_get_last_updated(PG_FUNCTION_ARGS)
{
TimestampTz last_updated;
@@ -335,7 +354,7 @@ repmgr_standby_get_last_updated(PG_FUNCTION_ARGS)
Datum
repmgr_set_upstream_last_seen(PG_FUNCTION_ARGS)
set_upstream_last_seen(PG_FUNCTION_ARGS)
{
int upstream_node_id = UNKNOWN_NODE_ID;
@@ -358,7 +377,7 @@ repmgr_set_upstream_last_seen(PG_FUNCTION_ARGS)
Datum
repmgr_get_upstream_last_seen(PG_FUNCTION_ARGS)
get_upstream_last_seen(PG_FUNCTION_ARGS)
{
long secs;
int microsecs;
@@ -392,7 +411,7 @@ repmgr_get_upstream_last_seen(PG_FUNCTION_ARGS)
Datum
repmgr_get_upstream_node_id(PG_FUNCTION_ARGS)
get_upstream_node_id(PG_FUNCTION_ARGS)
{
int upstream_node_id = UNKNOWN_NODE_ID;
@@ -407,7 +426,7 @@ repmgr_get_upstream_node_id(PG_FUNCTION_ARGS)
}
Datum
repmgr_set_upstream_node_id(PG_FUNCTION_ARGS)
set_upstream_node_id(PG_FUNCTION_ARGS)
{
int upstream_node_id = UNKNOWN_NODE_ID;
int local_node_id = UNKNOWN_NODE_ID;
@@ -443,7 +462,7 @@ repmgr_set_upstream_node_id(PG_FUNCTION_ARGS)
Datum
repmgr_notify_follow_primary(PG_FUNCTION_ARGS)
notify_follow_primary(PG_FUNCTION_ARGS)
{
int primary_node_id = UNKNOWN_NODE_ID;
@@ -486,7 +505,7 @@ repmgr_notify_follow_primary(PG_FUNCTION_ARGS)
Datum
repmgr_get_new_primary(PG_FUNCTION_ARGS)
get_new_primary(PG_FUNCTION_ARGS)
{
int new_primary_node_id = UNKNOWN_NODE_ID;
@@ -508,7 +527,7 @@ repmgr_get_new_primary(PG_FUNCTION_ARGS)
Datum
repmgr_reset_voting_status(PG_FUNCTION_ARGS)
reset_voting_status(PG_FUNCTION_ARGS)
{
if (!shared_state)
PG_RETURN_NULL();
@@ -716,7 +735,7 @@ repmgrd_is_paused(PG_FUNCTION_ARGS)
Datum
repmgr_get_wal_receiver_pid(PG_FUNCTION_ARGS)
get_wal_receiver_pid(PG_FUNCTION_ARGS)
{
int wal_receiver_pid;

View File

@@ -69,7 +69,7 @@
#------------------------------------------------------------------------------
#replication_user='repmgr' # User to make replication connections with, if not set
# defaults to the user defined in "conninfo".
# defaults to the user defined in "conninfo".
#replication_type='physical' # Must "physical" (the default).
@@ -238,7 +238,7 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
#primary_follow_timeout=60 # The max length of time (in seconds) to wait
# for the new primary to become available
#standby_follow_timeout=30 # The max length of time (in seconds) to wait
#standby_follow_timeout=15 # The max length of time (in seconds) to wait
# for the standby to connect to the primary
#standby_follow_restart=false # Restart the standby instead of sending a SIGHUP
# (only for PostgreSQL 13 and later)
@@ -301,7 +301,7 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
#connection_check_type=ping # How to check availability of the upstream node; valid options:
# 'ping': use PQping() to check if the node is accepting connections
# 'connection': attempt to make a new connection to the node
# 'connection': execute a throwaway query on the current connection
# 'query': execute an SQL statement on the node via the existing connection
#reconnect_attempts=6 # Number of attempts which will be made to reconnect to an unreachable
# primary (or other upstream node)
@@ -314,7 +314,7 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
#follow_command='' # command repmgrd executes when instructing a standby to follow a new primary;
# use something like:
#
# repmgr standby follow -f /etc/repmgr.conf --upstream-node-id=%n
# repmgr standby follow -f /etc/repmgr.conf -W --upstream-node-id=%n
#
#primary_notification_timeout=60 # Interval (in seconds) which repmgrd on a standby
# will wait for a notification from the new primary,
@@ -323,7 +323,7 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
# for the the local node to restart and become ready to accept connections after
# executing "follow_command" (defaults to the value set in "standby_reconnect_timeout")
#monitoring_history=no # Whether to write monitoring data to the "monitoring_history" table
#monitoring_history=no # Whether to write monitoring data to the "montoring_history" table
#monitor_interval_secs=2 # Interval (in seconds) at which to write monitoring data
#degraded_monitoring_timeout=-1 # Interval (in seconds) after which repmgrd will terminate if the
# server(s) being monitored are no longer available. -1 (default)
@@ -337,7 +337,6 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
# "--no-pid-file" will force PID file creation to be skipped.
# Note: there is normally no need to set this, particularly if
# repmgr was installed from packages.
#repmgrd_exit_on_inactive_node=false # If "true", and the node record is marked as "inactive", abort repmgrd startup
#standby_disconnect_on_failover=false # If "true", in a failover situation wait for all standbys to
# disconnect their WAL receivers before electing a new primary
# (PostgreSQL 9.5 and later only; repmgr user must be a superuser for this)
@@ -398,7 +397,7 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
#
# Debian/Ubuntu users: use "sudo pg_ctlcluster" to execute service control commands.
#
# For more details, see: https://repmgr.org/docs/current/configuration-file-service-commands.html
# For more details, see: https://repmgr.org/docs/current/configuration-service-commands.html
#service_start_command = ''
#service_stop_command = ''

View File

@@ -1,7 +1,8 @@
# repmgr extension
comment = 'Replication manager for PostgreSQL'
default_version = '5.4'
default_version = '5.2'
module_pathname = '$libdir/repmgr'
relocatable = false
schema = repmgr

View File

@@ -1,6 +1,6 @@
/*
* repmgr.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -116,7 +116,6 @@
#define DEFAULT_STANDBY_FOLLOW_TIMEOUT 30 /* seconds */
#define DEFAULT_STANDBY_FOLLOW_RESTART false
#define DEFAULT_SHUTDOWN_CHECK_TIMEOUT 60 /* seconds */
#define DEFAULT_STANDBY_PG_BACKUPAPI_OP_TYPE "recovery"
#define DEFAULT_STANDBY_RECONNECT_TIMEOUT 60 /* seconds */
#define DEFAULT_NODE_REJOIN_TIMEOUT 60 /* seconds */
#define DEFAULT_ARCHIVE_READY_WARNING 16 /* WAL files */
@@ -136,7 +135,6 @@
#define DEFAULT_ASYNC_QUERY_TIMEOUT 60 /* seconds */
#define DEFAULT_PRIMARY_NOTIFICATION_TIMEOUT 60 /* seconds */
#define DEFAULT_REPMGRD_STANDBY_STARTUP_TIMEOUT -1 /*seconds */
#define DEFAULT_REPMGRD_EXIT_ON_INACTIVE_NODE false,
#define DEFAULT_STANDBY_DISCONNECT_ON_FAILOVER false
#define DEFAULT_SIBLING_NODES_DISCONNECT_TIMEOUT 30 /* seconds */
#define DEFAULT_CONNECTION_CHECK_TYPE CHECK_PING

View File

@@ -1,7 +1,5 @@
#define REPMGR_VERSION_DATE ""
#define REPMGR_VERSION "5.4dev"
#define REPMGR_VERSION_NUM 50400
#define REPMGR_EXTENSION_VERSION "5.4"
#define REPMGR_EXTENSION_NUM 50400
#define REPMGR_RELEASE_DATE "2022-XX-XX"
#define REPMGR_VERSION "5.2.1"
#define REPMGR_VERSION_NUM 50201
#define REPMGR_RELEASE_DATE "2020-12-??"
#define PG_ACTUAL_VERSION_NUM

View File

@@ -1,7 +1,7 @@
/*
* repmgrd-physical.c - physical (streaming) replication functionality for repmgrd
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -169,126 +169,45 @@ handle_sigint_physical(SIGNAL_ARGS)
/* perform some sanity checks on the node's configuration */
void
do_physical_node_check(PGconn *conn)
do_physical_node_check(void)
{
/*
* If node record is "inactive"; if not, attempt to set it to "active".
* Check if node record is active - if not, and `failover=automatic`, the
* node won't be considered as a promotion candidate; this often happens
* when a failed primary is recloned and the node was not re-registered,
* giving the impression failover capability is there when it's not. In
* this case abort with an error and a hint about registering.
*
* Usually it will have become inactive due to e.g. a standby being shut down
* while repmgrd was running in an unpaused state. In this case it's
* perfectly reasonable to automatically mark the node as "active".
* If `failover=manual`, repmgrd can continue to passively monitor the
* node, but we should nevertheless issue a warning and the same hint.
*/
if (local_node_info.active == false)
{
char *hint = "Check that \"repmgr (primary|standby) register\" was executed for this node";
RecoveryType recovery_type = get_recovery_type(conn);
/*
* If the local node's recovery status is incompatible with its registered
* status, e.g. registered as primary but running as a standby, refuse to start.
*
* This typically happens when a failed primary is recloned but the node was not
* re-registered, leaving the cluster in a potentially ambiguous state. In
* this case it would not be possible or desirable to attempt to set the
* node to active; the user should ensure the cluster is in the correct state.
*/
if (recovery_type != RECTYPE_UNKNOWN && local_node_info.type != UNKNOWN)
switch (config_file_options.failover)
{
bool require_reregister = false;
PQExpBufferData event_details;
initPQExpBuffer(&event_details);
/* "failover" is an enum, all values should be covered here */
if (recovery_type == RECTYPE_STANDBY && local_node_info.type != STANDBY)
{
appendPQExpBuffer(&event_details,
_("node is registered as a %s but running as a standby"),
get_node_type_string(local_node_info.type));
require_reregister = true;
}
else if (recovery_type == RECTYPE_PRIMARY && local_node_info.type == STANDBY)
{
log_error(_("node is registered as a standby but running as a %s"), get_node_type_string(local_node_info.type));
require_reregister = true;
}
if (require_reregister == true)
{
log_error("%s", event_details.data);
case FAILOVER_AUTOMATIC:
log_error(_("this node is marked as inactive and cannot be used as a failover target"));
log_hint(_("%s"), hint);
create_event_notification(NULL,
&config_file_options,
config_file_options.node_id,
"repmgrd_start",
"repmgrd_shutdown",
false,
event_details.data);
"node is inactive and cannot be used as a failover target");
termPQExpBuffer(&event_details);
terminate(ERR_BAD_CONFIG);
}
break;
termPQExpBuffer(&event_details);
}
/*
* Attempt to set node record active (unless explicitly configured not to)
*/
log_notice(_("setting node record for node \"%s\" (ID: %i) to \"active\""),
local_node_info.node_name,
local_node_info.node_id);
if (config_file_options.repmgrd_exit_on_inactive_node == false)
{
PGconn *primary_conn = get_primary_connection(conn, NULL, NULL);
bool success = true;
if (PQstatus(primary_conn) != CONNECTION_OK)
{
log_error(_("unable to connect to the primary node to activate the node record"));
success = false;
}
else
{
success = update_node_record_set_active(primary_conn, local_node_info.node_id, true);
PQfinish(primary_conn);
}
if (success == true)
{
local_node_info.active = true;
}
}
/*
* Corner-case where it was not possible to set the node to "active"
*/
if (local_node_info.active == false)
{
switch (config_file_options.failover)
{
/* "failover" is an enum, all values should be covered here */
case FAILOVER_AUTOMATIC:
log_error(_("this node is marked as inactive and cannot be used as a failover target"));
log_hint(_("%s"), hint);
create_event_notification(NULL,
&config_file_options,
config_file_options.node_id,
"repmgrd_start",
false,
"node is inactive and cannot be used as a failover target");
terminate(ERR_BAD_CONFIG);
break;
case FAILOVER_MANUAL:
log_warning(_("this node is marked as inactive and will be passively monitored only"));
log_hint(_("%s"), hint);
break;
}
case FAILOVER_MANUAL:
log_warning(_("this node is marked as inactive and will be passively monitored only"));
log_hint(_("%s"), hint);
break;
}
}
@@ -585,7 +504,6 @@ monitor_streaming_primary(void)
if (is_server_available(local_node_info.conninfo) == true)
{
close_connection(&local_conn);
local_conn = establish_db_connection(local_node_info.conninfo, false);
if (PQstatus(local_conn) != CONNECTION_OK)
@@ -819,7 +737,7 @@ check_primary_status(int degraded_monitoring_elapsed)
/* refresh our copy of the node record from the primary */
record_status = get_node_record(new_primary_conn, config_file_options.node_id, &local_node_info);
/* this is unlikely to happen */
/* this is unlikley to happen */
if (record_status != RECORD_FOUND)
{
log_warning(_("unable to retrieve local node record from primary node %i"), primary_node_id);
@@ -1193,7 +1111,7 @@ execute_child_nodes_disconnect_command(NodeInfoList *db_child_node_records, t_ch
/* calculate number of connected child nodes */
for (cell = db_child_node_records->head; cell; cell = cell->next)
{
/* exclude witness server from total, if necessary */
/* exclude witness server from total, if necessay */
if (config_file_options.child_nodes_connected_include_witness == false &&
cell->node_info->type == WITNESS)
continue;
@@ -1231,7 +1149,7 @@ execute_child_nodes_disconnect_command(NodeInfoList *db_child_node_records, t_ch
instr_time current_time = current_time_base;
int seconds_since_detached;
/* exclude witness server from calculation, if requested */
/* exclude witness server from calculatin if neccessary */
if (config_file_options.child_nodes_connected_include_witness == false &&
child_node_rec->type == WITNESS)
continue;
@@ -1587,22 +1505,22 @@ monitor_streaming_standby(void)
/* TODO: possibly add pre-action event here */
if (upstream_node_info.type == STANDBY)
{
create_event_notification(primary_conn,
&config_file_options,
config_file_options.node_id,
"repmgrd_upstream_disconnect",
true,
event_details.data);
create_event_record(primary_conn,
&config_file_options,
config_file_options.node_id,
"repmgrd_upstream_disconnect",
true,
event_details.data);
}
else
{
/* primary connection lost - script notification only */
create_event_notification(NULL,
&config_file_options,
config_file_options.node_id,
"repmgrd_upstream_disconnect",
true,
event_details.data);
create_event_record(NULL,
&config_file_options,
config_file_options.node_id,
"repmgrd_upstream_disconnect",
true,
event_details.data);
}
log_warning("%s", event_details.data);
@@ -1814,10 +1732,7 @@ monitor_streaming_standby(void)
if (upstream_check_result == true)
{
if (config_file_options.connection_check_type != CHECK_QUERY)
{
close_connection(&upstream_conn);
upstream_conn = establish_db_connection(upstream_node_info.conninfo, false);
}
if (PQstatus(upstream_conn) == CONNECTION_OK)
{
@@ -1898,7 +1813,6 @@ monitor_streaming_standby(void)
int former_upstream_node_id = local_node_info.upstream_node_id;
NodeInfoList sibling_nodes = T_NODE_INFO_LIST_INITIALIZER;
PQExpBufferData event_details;
t_event_info event_info = T_EVENT_INFO_INITIALIZER;
update_node_record_set_primary(local_conn, local_node_info.node_id);
record_status = get_node_record(local_conn, local_node_info.node_id, &local_node_info);
@@ -1911,16 +1825,12 @@ monitor_streaming_standby(void)
initPQExpBuffer(&event_details);
appendPQExpBufferStr(&event_details,
_("promotion command failed but promotion completed successfully"));
event_info.node_id = former_upstream_node_id;
create_event_notification_extended(local_conn,
&config_file_options,
local_node_info.node_id,
"repmgrd_failover_promote",
true,
event_details.data,
&event_info);
create_event_notification(local_conn,
&config_file_options,
local_node_info.node_id,
"repmgrd_failover_promote",
true,
event_details.data);
termPQExpBuffer(&event_details);
@@ -2382,18 +2292,6 @@ monitor_streaming_witness(void)
log_warning(_("unable to retrieve node record from primary"));
}
/* refresh local node record from the primary */
record_status = get_node_record(primary_conn, config_file_options.node_id, &local_node_info);
if (record_status != RECORD_FOUND)
{
log_error(_("no metadata record found for this node on the current primary - terminating"));
log_hint(_("check that 'repmgr witness register' was executed for this node"));
close_connection(&primary_conn);
close_connection(&local_conn);
terminate(ERR_BAD_CONFIG);
}
initPQExpBuffer(&event_details);
appendPQExpBuffer(&event_details,
@@ -2482,12 +2380,12 @@ monitor_streaming_witness(void)
_("unable to connect to primary node \"%s\" (ID: %i)"),
upstream_node_info.node_name, upstream_node_info.node_id);
create_event_notification(NULL,
&config_file_options,
config_file_options.node_id,
"repmgrd_upstream_disconnect",
true,
event_details.data);
create_event_record(NULL,
&config_file_options,
config_file_options.node_id,
"repmgrd_upstream_disconnect",
true,
event_details.data);
termPQExpBuffer(&event_details);
}
@@ -2562,10 +2460,8 @@ monitor_streaming_witness(void)
if (check_upstream_connection(&primary_conn, upstream_node_info.conninfo, NULL) == true)
{
if (config_file_options.connection_check_type != CHECK_QUERY)
{
close_connection(&primary_conn);
primary_conn = establish_db_connection(upstream_node_info.conninfo, false);
}
if (PQstatus(primary_conn) == CONNECTION_OK)
{
PQExpBufferData event_details;
@@ -2862,7 +2758,6 @@ do_primary_failover(void)
bool final_result = false;
NodeInfoList sibling_nodes = T_NODE_INFO_LIST_INITIALIZER;
int new_primary_id = UNKNOWN_NODE_ID;
bool standby_disconnect_on_failover = false;
/*
* Double-check status of the local connection
@@ -2875,20 +2770,20 @@ do_primary_failover(void)
*/
if (config_file_options.standby_disconnect_on_failover == true)
{
/*
* Determine whether we can actually disable the walsender; this depends
* on PostgreSQL version and user permissions.
*/
standby_disconnect_on_failover = can_disable_walsender(local_conn);
NodeInfoListCell *cell = NULL;
NodeInfoList check_sibling_nodes = T_NODE_INFO_LIST_INITIALIZER;
int i;
if (standby_disconnect_on_failover == true)
bool sibling_node_wal_receiver_connected = false;
if (PQserverVersion(local_conn) < 90500)
{
log_warning(_("\"standby_disconnect_on_failover\" specified, but not available for this PostgreSQL version"));
/* TODO: format server version */
log_detail(_("available from PostgreSQL 9.5, this PostgreSQL version is %i"), PQserverVersion(local_conn));
}
else
{
NodeInfoListCell *cell = NULL;
NodeInfoList check_sibling_nodes = T_NODE_INFO_LIST_INITIALIZER;
int i;
bool sibling_node_wal_receiver_connected = false;
disable_wal_receiver(local_conn);
/*
@@ -2972,7 +2867,7 @@ do_primary_failover(void)
log_debug("election result: %s", _print_election_result(election_result));
/* Reenable WAL receiver, if disabled */
if (standby_disconnect_on_failover == true)
if (config_file_options.standby_disconnect_on_failover == true)
{
/* adjust "wal_retrieve_retry_interval" but don't wait for WAL receiver to start */
enable_wal_receiver(local_conn, false);
@@ -3080,6 +2975,7 @@ do_primary_failover(void)
t_node_info new_primary = T_NODE_INFO_INITIALIZER;
RecordStatus record_status = RECORD_NOT_FOUND;
PGconn *new_primary_conn;
record_status = get_node_record(local_conn, new_primary_id, &new_primary);
@@ -3091,7 +2987,6 @@ do_primary_failover(void)
else
{
PQExpBufferData event_details;
PGconn *new_primary_conn;
initPQExpBuffer(&event_details);
appendPQExpBuffer(&event_details,
@@ -3112,6 +3007,7 @@ do_primary_failover(void)
event_details.data);
close_connection(&new_primary_conn);
termPQExpBuffer(&event_details);
}
failover_state = FAILOVER_STATE_REQUIRES_MANUAL_FAILOVER;
}
@@ -3358,7 +3254,7 @@ update_monitoring_history(void)
*
* Attach cascaded standby to another node, currently the primary.
*
* Note that in contrast to a primary failover, where one of the downstream
* Note that in contrast to a primary failover, where one of the downstrean
* standby nodes will become a primary, a cascaded standby failover (where the
* upstream standby has gone away) is "just" a case of attaching the standby to
* another node.
@@ -3778,7 +3674,6 @@ promote_self(void)
{
PQExpBufferData event_details;
t_event_info event_info = T_EVENT_INFO_INITIALIZER;
/* update own internal node record */
record_status = get_node_record(local_conn, local_node_info.node_id, &local_node_info);
@@ -3795,16 +3690,13 @@ promote_self(void)
failed_primary.node_name,
failed_primary.node_id);
event_info.node_id = failed_primary.node_id;
/* local_conn is now the primary connection */
create_event_notification_extended(local_conn,
&config_file_options,
local_node_info.node_id,
"repmgrd_failover_promote",
true,
event_details.data,
&event_info);
create_event_notification(local_conn,
&config_file_options,
local_node_info.node_id,
"repmgrd_failover_promote",
true,
event_details.data);
termPQExpBuffer(&event_details);
}

View File

@@ -1,6 +1,6 @@
/*
* repmgrd-physical.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -19,7 +19,7 @@
#ifndef _REPMGRD_PHYSICAL_H_
#define _REPMGRD_PHYSICAL_H_
void do_physical_node_check(PGconn *conn);
void do_physical_node_check(void);
void monitor_streaming_primary(void);
void monitor_streaming_standby(void);

View File

@@ -1,7 +1,7 @@
/*
* repmgrd.c - Replication manager daemon
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -131,7 +131,7 @@ main(int argc, char **argv)
memset(pid_file, 0, MAXPGPATH);
while ((c = getopt_long(argc, argv, "?Vf:L:vdp:sm", long_options, &optindex)) != -1)
while ((c = getopt_long(argc, argv, "?Vf:L:vdp:m", long_options, &optindex)) != -1)
{
switch (c)
{
@@ -249,7 +249,7 @@ main(int argc, char **argv)
/*
* Parse the configuration file, if provided (if no configuration file was
* provided, an attempt will be made to find one in one of the default
* locations). If no configuration file is available, or it can't be parsed
* locations). If no conifguration file is available, or it can't be parsed
* parse_config() will abort anyway, with an appropriate message.
*/
load_config(config_file, verbose, false, argv[0]);
@@ -307,7 +307,7 @@ main(int argc, char **argv)
}
/* Some configuration file items can be overridden by command line options */
/* Some configuration file items can be overriden by command line options */
/*
* Command-line parameter -L/--log-level overrides any setting in config
@@ -396,14 +396,13 @@ main(int argc, char **argv)
* extension is the latest available according to "pg_available_extensions" -
* - does our (major) version match that?
*/
log_verbose(LOG_DEBUG, "expected extension version: %i; extension version: %i",
REPMGR_EXTENSION_NUM, extversions.installed_version_num);
if ((REPMGR_EXTENSION_NUM/100) < (extversions.installed_version_num / 100))
log_verbose(LOG_DEBUG, "binary version: %i; extension version: %i",
REPMGR_VERSION_NUM, extversions.installed_version_num);
if ((REPMGR_VERSION_NUM/100) < (extversions.installed_version_num / 100))
{
log_error(_("this \"repmgr\" version is older than the installed \"repmgr\" extension version"));
log_detail(_("\"repmgr\" version %s providing extension version %s is installed but extension is version %s"),
log_detail(_("\"repmgr\" version %s is installed but extension is version %s"),
REPMGR_VERSION,
REPMGR_EXTENSION_VERSION,
extversions.installed_version);
log_hint(_("update the repmgr binaries to match the installed extension version"));
@@ -411,14 +410,13 @@ main(int argc, char **argv)
exit(ERR_BAD_CONFIG);
}
if ((REPMGR_EXTENSION_NUM/100) > (extversions.installed_version_num / 100))
if ((REPMGR_VERSION_NUM/100) > (extversions.installed_version_num / 100))
{
log_error(_("this \"repmgr\" version is newer than the installed \"repmgr\" extension version"));
log_detail(_("\"repmgr\" version %s providing extension version %s is installed but extension is version %s"),
log_detail(_("\"repmgr\" version %s is installed but extension is version %s"),
REPMGR_VERSION,
REPMGR_EXTENSION_VERSION,
extversions.installed_version);
log_hint(_("update the installed extension version by executing \"ALTER EXTENSION repmgr UPDATE\" in the repmgr database"));
log_hint(_("update the installed extension version by executing \"ALTER EXTENSION repmgr UPDATE\""));
close_connection(&local_conn);
exit(ERR_BAD_CONFIG);
@@ -479,7 +477,7 @@ main(int argc, char **argv)
switch (config_file_options.replication_type)
{
case REPLICATION_TYPE_PHYSICAL:
log_hint(_("check that 'repmgr (primary|standby|witness) register' was executed for this node"));
log_hint(_("check that 'repmgr (primary|standby) register' was executed for this node"));
break;
}
@@ -512,7 +510,7 @@ main(int argc, char **argv)
log_debug("node id is %i, upstream node id is %i",
local_node_info.node_id,
local_node_info.upstream_node_id);
do_physical_node_check(local_conn);
do_physical_node_check();
}
if (daemonize == true)

View File

@@ -1,6 +1,6 @@
/*
* repmgrd.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*/

View File

@@ -1,7 +1,7 @@
/*
* strutil.c
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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
@@ -369,6 +369,7 @@ check_status_list_free(CheckStatusList *list)
}
const char *
output_check_status(CheckStatus status)
{

View File

@@ -1,6 +1,6 @@
/*
* strutil.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -3,7 +3,7 @@
*
* Functions which need to be executed on the local system.
*
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -1,6 +1,6 @@
/*
* sysutils.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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

View File

@@ -1,6 +1,6 @@
/*
* voting.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
* Copyright (c) 2ndQuadrant, 2010-2020
*
* 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