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64 Commits

Author SHA1 Message Date
Ian Barwick
922b8de46b doc: link to main documentation section about RemoveIPC 2021-07-26 11:05:49 +09:00
Ian Barwick
92cd8c30b5 doc: link to service commands section from switchover docs 2021-07-26 09:48:02 +09:00
Ian Barwick
fa234919fb doc: document pg_bindir setting
Per suggestion in GitHub #705.
2021-07-20 13:41:00 +09:00
Ian Barwick
03c5220e87 doc: link to sample configuration file
Unfortunately it hasn't been possible yet to include all available
configuration items in the main documentation, but we should at least
make it easier to find the full list.
2021-07-20 13:40:57 +09:00
Ian Barwick
65bd0878fa doc: update release notes 2021-07-01 13:42:30 +09:00
Ian Barwick
f1592f009a repmgrd: ensure short option "-s" is accepted
The long option --show-pid-file was fine.
2021-07-01 13:33:31 +09:00
Ian Barwick
490e51fd7b Remove reference to PostgreSQL 9.3 in --help output
It is not supported by repmgr 5.2 and later.
2021-07-01 13:33:15 +09:00
Ian Barwick
f5c555a7f5 Fix incorrect comment 2021-07-01 13:33:03 +09:00
Ian Barwick
de51df9759 node rejoin: emit rejoin target note information as NOTICE
As it's possible to specify the connection information for any available
node, but currently not possible to rejoin to a node other than the
primary, explicitly mention what the rejoin target will be.
2021-07-01 13:32:13 +09:00
Ian Barwick
b094d7b407 standby clone: set "slot_name" in node record if required
If executing "repmgr standby clone --replication-conf-only" on a node
which was set up without replication slots, but the repmgr configuration
was since changed to "use_replication_slots=1", repmgr will attempt to
create the replication slot. This will however fail if "slot_name"
is not set in the node's record, so have repmgr set the slot_name in
this case.

It might be preferable to preemptively create the slot name for each
node when configuring the cluster, however this would be a behavioural
change which would be better off in a major release (for example, it's
conceivable a user runs sanity checks on the node records and expects
to find the slot names empty if replication slots are not in use).
2021-07-01 13:11:11 +09:00
Ian Barwick
44cdb7d001 doc: clarify "connection_check_type='query'" 2021-03-03 13:07:37 +09:00
Ian Barwick
f5f8db8ca1 docs: update repmgr.conf.sample
Fix description for connection_check_type='connection'.
2021-03-02 11:47:24 +09:00
Ian Barwick
0c568da254 docs: update README
Note latest version number.
2021-03-02 11:22:39 +09:00
Ian Barwick
46042298f7 doc: update README
Fix and update broken link.
2021-03-02 11:15:58 +09:00
Ian Barwick
01e89c3ca9 doc: update GitHub links to new location 2021-03-02 10:22:36 +09:00
Ian Barwick
7b97a8f04d doc: remove generated .fo files 2021-03-02 10:22:23 +09:00
Ian Barwick
c362d6d03f Change copyright information to "EnterpriseDB Corporation"
RM20485.
2021-03-02 10:22:17 +09:00
Ian Barwick
75a2e2a8b4 doc: fix XML markup
An incorrect column count was causing PDF builds to fail.
2021-02-19 20:39:25 +09:00
Ian Barwick
65d59db6d1 doc: update repmgr.conf.sample 2021-01-14 15:28:04 +09:00
Ian Barwick
10cd15bedc doc: "repmgr node rejoin" clarifications
- make it clearer a node can only be joined to the primary
- update patch status
2021-01-06 12:37:14 +09:00
Ian Barwick
cae2255d58 Update copyright notices to 2021 2021-01-04 12:57:26 +09:00
Ian Barwick
bc0bc2696e Add missing PQconninfoFree() call 2020-12-24 18:07:50 +09:00
Ian Barwick
7db9afdc10 repmgrd: edit code comment for clarity 2020-12-22 13:59:29 +09:00
Ian Barwick
5eb8bccd33 doc: minor grammar tweak 2020-12-22 13:59:16 +09:00
Josh Soref
4760c11937 doc: various spelling fixes
Via GitHub #687.
2020-12-22 13:48:29 +09:00
Josh Soref
cb6501aa48 Fix various typos in code comments.
Via GitHub #687.
2020-12-22 13:48:25 +09:00
Josh Soref
6100007a32 repmgr: various log ouput typo fixes
Via GitHub #687.
2020-12-22 13:21:20 +09:00
Josh Soref
a415d85530 repmgr: fix typo in "repmgr node --help" output
Via GitHub #687.
2020-12-22 13:21:15 +09:00
Ian Barwick
45a9a784e3 Improve HINT about upgrading the repmgr extension
Per feedback in GitHub #685.
2020-12-15 08:42:41 +09:00
Ian Barwick
8ce212327c standby switchover: remove extraneous space in log message 2020-12-15 08:42:36 +09:00
Ian Barwick
54851e8df1 Finalize release date 2020-12-07 17:54:14 +09:00
Ian Barwick
a2166d0024 doc: add 5.2.1 release date 2020-12-07 17:53:38 +09:00
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
60 changed files with 763 additions and 3103 deletions

7
.github/CODEOWNERS vendored
View File

@@ -1,7 +0,0 @@
# Each line is a file pattern followed by one or more owners.
# These owners will be the default owners for everything in
# the repo. Unless a later match takes precedence,
# @global-owner1 and @global-owner2 will be requested for
# review when someone opens a pull request.
* @EnterpriseDB/repmgr-dev

32
HISTORY
View File

@@ -1,32 +1,4 @@
5.4.1 2023-??-??
repmgrd: ensure witness node metadata is updated (Ian)
5.4.0 2023-03-16
Support cloning replicas using pg-backup-api
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)
5.2.2. 2021-??-??
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)
@@ -80,7 +52,7 @@
"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

@@ -7,8 +7,8 @@ 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 (5.4.1) supports all PostgreSQL versions from
10 to 16.
The most recent `repmgr` version (5.2.1) 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.
@@ -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/EnterpriseDB/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
--------
@@ -40,6 +48,7 @@ Directories
- `contrib/`: additional utilities
- `doc/`: DocBook-based documentation files
- `expected/`: expected regression test output
- `scripts/`: example scripts
- `sql/`: regression test input
@@ -56,6 +65,8 @@ There is a mailing list/forum to discuss contributions or issues:
* https://groups.google.com/group/repmgr
The IRC channel #repmgr is registered with freenode.
Please report bugs and other issues to:
* https://github.com/EnterpriseDB/repmgr
@@ -68,13 +79,6 @@ news are always welcome.
Thanks from the repmgr core team.
* Ian Barwick
* Israel Barth
* Mario González
* Martín Marqués
* Gianni Ciolli
Past contributors:
* Jaime Casanova
* Abhijit Menon-Sen
* Simon Riggs
@@ -86,4 +90,3 @@ 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

@@ -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

@@ -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;

24
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>.
#
@@ -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 $ac_init_help in
short | recursive ) echo "Configuration of repmgr 5.4.0:";;
short | recursive ) echo "Configuration of repmgr 5.2.1:";;
esac
cat <<\_ACEOF
@@ -1316,7 +1316,7 @@ fi
test -n "$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.
@@ -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

@@ -1,4 +1,4 @@
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])
@@ -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])

265
dbutils.c
View File

@@ -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;
@@ -1291,16 +1289,21 @@ 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);
@@ -1823,80 +1826,11 @@ 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 */
/* =============================== */
/*
* Determine if the user associated with the current connection can execute CHECKPOINT command.
* User must be a supersuer or a member of the pg_checkpoint default role (available from PostgreSQL 15).
*/
bool
can_execute_checkpoint(PGconn *conn)
{
PQExpBufferData query;
PGresult *res;
bool has_pg_checkpoint_role = false;
/* superusers can do anything, no role check needed */
if (is_superuser_connection(conn, NULL) == true)
return true;
/* pg_checkpoint available from PostgreSQL 15 */
if (PQserverVersion(conn) < 150000)
return false;
initPQExpBuffer(&query);
appendPQExpBufferStr(&query,
" SELECT pg_catalog.pg_has_role('pg_checkpoint','USAGE') ");
res = PQexec(conn, query.data);
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
log_db_error(conn, query.data,
_("can_execute_checkpoint(): unable to query user roles"));
}
else
{
has_pg_checkpoint_role = atobool(PQgetvalue(res, 0, 0));
}
termPQExpBuffer(&query);
PQclear(res);
return has_pg_checkpoint_role;
}
/*
* Determine if the user associated with the current connection
* has sufficient permissions to use pg_promote function
*/
bool
can_execute_pg_promote(PGconn *conn)
{
@@ -1933,74 +1867,6 @@ 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;
PQExpBufferData query;
PGresult *res;
bool has_alter_system_priv = false;
/* GRANT ALTER SYSTEM available from PostgreSQL 15 */
if (PQserverVersion(conn) >= 150000)
{
initPQExpBuffer(&query);
appendPQExpBufferStr(&query,
" SELECT pg_catalog.has_parameter_privilege('wal_retrieve_retry_interval', 'ALTER SYSTEM') ");
res = PQexec(conn, query.data);
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
log_db_error(conn, query.data,
_("can_disable_walsender(): unable to query user parameter privileges"));
}
else
{
has_alter_system_priv = atobool(PQgetvalue(res, 0, 0));
}
termPQExpBuffer(&query);
PQclear(res);
}
if (has_alter_system_priv == false)
{
log_warning(_("\"standby_disconnect_on_failover\" specified, but repmgr user is not authorized to perform ALTER SYSTEM wal_retrieve_retry_interval"));
if (PQserverVersion(conn) >= 150000)
{
log_detail(_("superuser or ALTER SYSTEM wal_retrieve_retry_interval permission required to disable standbys on failover"));
}
else
{
log_detail(_("superuser permission required to disable standbys on failover"));
}
}
return has_alter_system_priv;
}
/*
* Determine if the user associated with the current connection is
* a member of the "pg_monitor" default role, or optionally one
@@ -2024,13 +1890,13 @@ connection_has_pg_monitor_role(PGconn *conn, const char *subrole)
initPQExpBuffer(&query);
appendPQExpBufferStr(&query,
" SELECT CASE "
" WHEN pg_catalog.pg_has_role('pg_monitor','USAGE') "
" WHEN pg_catalog.pg_has_role('pg_monitor','MEMBER') "
" THEN TRUE ");
if (subrole != NULL)
{
appendPQExpBuffer(&query,
" WHEN pg_catalog.pg_has_role('%s','USAGE') "
" WHEN pg_catalog.pg_has_role('%s','MEMBER') "
" THEN TRUE ",
subrole);
}
@@ -2216,13 +2082,7 @@ 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)
{
@@ -2386,6 +2246,29 @@ 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)
@@ -2537,10 +2420,7 @@ get_repmgr_extension_status(PGconn *conn, t_extension_versions *extversions)
/* node management functions */
/* ========================= */
/*
* Assumes the connection can execute CHECKPOINT command.
* A check can be executed via 'can_execute_checkpoint' function.
*/
/* assumes superuser connection */
void
checkpoint(PGconn *conn)
{
@@ -4362,7 +4242,7 @@ _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)
{
@@ -4696,17 +4576,17 @@ 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;
@@ -5824,7 +5704,7 @@ 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)
{
@@ -5912,19 +5792,6 @@ 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;
@@ -5959,12 +5826,9 @@ _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);
@@ -5973,8 +5837,7 @@ _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);
@@ -6000,10 +5863,9 @@ _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);
@@ -6146,43 +6008,6 @@ 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

@@ -450,12 +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_checkpoint(PGconn *conn);
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);
@@ -470,6 +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);
@@ -599,15 +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

@@ -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>
@@ -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

View File

@@ -50,18 +50,18 @@
<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
&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 +252,7 @@
</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 +262,12 @@
<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>
@@ -401,7 +401,7 @@
</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 +413,22 @@
</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
@@ -493,6 +493,32 @@ 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

@@ -15,252 +15,18 @@
See also: <xref linkend="upgrading-repmgr"/>
</para>
<!-- remember to update the release date in ../repmgr_version.h.in -->
<sect1 id="release-5.4.1">
<title id="release-current">Release 5.4.1</title>
<para><emphasis>??? ?? ??????, 202?</emphasis></para>
<!-- remember to update the release date in ../repmgr_version.h.in -->
<sect1 id="release-5.2.2">
<title id="release-current">Release 5.2.2</title>
<para><emphasis>??? ? ???, 2021</emphasis></para>
<para>
&repmgr; 5.4.1 is a minor release providing ...
&repmgr; 5.2.2 is a minor release.
</para>
<sect2>
<title>Bug fixes</title>
<para>
<itemizedlist>
<listitem>
<para>
&repmgrd;: ensure witness node metadata is updated if the primary
node changed while the witness &repmgrd; was not running.
</para>
</listitem>
</itemizedlist>
</para>
</sect2>
</sect1>
<sect1 id="release-5.4.0">
<title>Release 5.4.0</title>
<para><emphasis>Thu 15 March, 2023</emphasis></para>
<para>
&repmgr; 5.4.0 is a major release.
</para>
<para>
This release provides support for cloning standbys using backups taken with <ulink url="http://www.pgbarman.org">barman</ulink>
with the use of <ulink url="https://github.com/EnterpriseDB/pg-backup-api">pg-backup-api</ulink>.
</para>
<para>
Minor fixes to the documentation.
</para>
</sect1>
<sect1 id="release-5.3.3">
<title>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>
<itemizedlist>
<listitem>
<para>
<command><link linkend="repmgr-standby-clone">repmgr standby clone</link></command>:
@@ -272,23 +38,22 @@
</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>
<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>
&repmgrd;: ensure short option <option>-s</option> is accepted.
</para>
</listitem>
</itemizedlist>
</itemizedlist>
</para>
</sect2>
</sect1>

View File

@@ -7,13 +7,13 @@
</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>

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>
@@ -225,109 +225,6 @@ description = "Main cluster"
</note>
</sect2>
<sect2 id="cloning-from-barman-pg_backupapi-mode" xreflabel="Using Barman through its API (pg-backup-api)">
<title>Using Barman through its API (pg-backup-api)</title>
<indexterm>
<primary>cloning</primary>
<secondary>pg-backup-api</secondary>
</indexterm>
<para>
You can find information on how to install and setup pg-backup-api in
<ulink url="https://www.enterprisedb.com/docs/supported-open-source/barman/pg-backup-api/">the pg-backup-api
documentation</ulink>.
</para>
<para>
This mode (`pg-backupapi`) was introduced in v5.4.0 as a way to further integrate with Barman letting Barman
handle the restore. This also reduces the ssh keys that need to share between the backup and postgres nodes.
As long as you have access to the API service by HTTP calls, you could perform recoveries right away.
You just need to instruct Barman through the API which backup you need and on which node the backup needs to
to be restored on.
</para>
<para>
In order to enable <literal>pg_backupapi mode</literal> support for <command>repmgr standby clone</command>,
you need the following lines in repmgr.conf:
<itemizedlist spacing="compact" mark="bullet">
<listitem><para>pg_backupapi_host: Where pg-backup-api is hosted</para></listitem>
<listitem><para>pg_backupapi_node_name: Name of the server as understood by Barman</para></listitem>
<listitem><para>pg_backupapi_remote_ssh_command: How Barman will be connecting as to the node</para></listitem>
<listitem><para>pg_backupapi_backup_id: ID of the existing backup you need to restore</para></listitem>
</itemizedlist>
This is an example of how repmgr.conf would look like:
<programlisting>
pg_backupapi_host = '192.168.122.154'
pg_backupapi_node_name = 'burrito'
pg_backupapi_remote_ssh_command = 'ssh john_doe@192.168.122.1'
pg_backupapi_backup_id = '20230223T093201'
</programlisting>
</para>
<para>
<literal>pg_backupapi_host</literal> is the variable name that enables this mode, and when you set it,
all the rest of the above variables are required. Also, remember that this service is just an interface
between Barman and repmgr, hence if something fails during a recovery, you should check Barman's logs upon
why the process couldn't finish properly.
</para>
<note>
<simpara>
Despite in Barman you can define shortcuts like "lastest" or "oldest", they are not supported for the
time being in pg-backup-api. These shortcuts will be supported in a future release.
</simpara>
</note>
<para>
This is a real example of repmgr's output cloning with the API. Note that during this operation, we stopped
the service for a little while and repmgr had to retry but that doesn't affect the final outcome. The primary
is listening on localhost's port 6001:
<programlisting>
$ repmgr -f ~/nodes/node_3/repmgr.conf standby clone -U repmgr -p 6001 -h localhost
NOTICE: destination directory "/home/mario/nodes/node_3/data" provided
INFO: Attempting to use `pg_backupapi` new restore mode
INFO: connecting to source node
DETAIL: connection string is: user=repmgr port=6001 host=localhost
DETAIL: current installation size is 8541 MB
DEBUG: 1 node records returned by source node
DEBUG: connecting to: "user=repmgr dbname=repmgr host=localhost port=6001 connect_timeout=2 fallback_application_name=repmgr options=-csearch_path="
DEBUG: upstream_node_id determined as 1
INFO: Attempting to use `pg_backupapi` new restore mode
INFO: replication slot usage not requested; no replication slot will be set up for this standby
NOTICE: starting backup (using pg_backupapi)...
INFO: Success creating the task: operation id '20230309T150647'
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
Incorrect reply received for that operation ID.
INFO: Retrying...
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status IN_PROGRESS
INFO: status DONE
NOTICE: standby clone (from pg_backupapi) complete
NOTICE: you can now start your PostgreSQL server
HINT: for example: pg_ctl -D /home/mario/nodes/node_3/data start
HINT: after starting the server, you need to register this standby with "repmgr standby register"
</programlisting>
</para>
</sect2> <!--END cloning-from-barman-pg_backupapi-mode !-->
</sect1>
<sect1 id="cloning-replication-slots" xreflabel="Cloning and replication slots">
@@ -402,7 +299,7 @@ HINT: after starting the server, you need to register this standby with "repmgr
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.
@@ -431,9 +328,9 @@ HINT: after starting the server, you need to register this standby with "repmgr
&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>
@@ -495,7 +392,7 @@ HINT: after starting the server, you need to register this standby with "repmgr
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.
in <filename>recovery.conf</filename>.
</simpara>
</tip>
</sect1>
@@ -594,12 +491,12 @@ HINT: after starting the server, you need to register this standby with "repmgr
</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>
@@ -611,7 +508,7 @@ HINT: after starting the server, you need to register this standby with "repmgr
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

@@ -10,8 +10,8 @@
<note>
<simpara>
This section documents a subset of optional configuration settings; for a full
and annotated view of all configuration options 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 see the
see the <ulink url="https://raw.githubusercontent.com/EnterpriseDB/repmgr/master/repmgr.conf.sample">sample repmgr.conf file</ulink>
</simpara>
</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

@@ -7,194 +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>
PostgreSQL 15 introduced the <varname>pg_checkpoint</varname> predefined role which allows a
non-superuser &repmgr; database user to perform a CHECKPOINT command.
</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.
From PostgreSQL 15 the <varname>pg_checkpoint</varname> predefined role removes the need of
superuser permissions to perform <command>CHECKPOINT</command> command.
</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>. Until PostgreSQL 14 <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.
From PostgreSQL 15 a specific ALTER SYSTEM privilege can be granted with e.g.
<command>GRANT ALTER SYSTEM ON PARAMETER wal_retrieve_retry_interval TO repmgr</command>.
</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

@@ -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

@@ -1,18 +1,18 @@
<!-- doc/legal.xml -->
<date>2022</date>
<date>2017</date>
<copyright>
<year>2010-2022</year>
<holder>EDB</holder>
<year>2010-2021</year>
<holder>EnterpriseDB Corporation</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; 2010-2021
by EnterpriseDB Corporation All rights reserved.
</para>
<para>

View File

@@ -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

@@ -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

@@ -73,16 +73,16 @@
</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 +261,8 @@
<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 +271,6 @@
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>
@@ -384,29 +382,6 @@
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 +426,7 @@
<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>
@@ -481,7 +456,8 @@
<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.
has been successfully submitted and will be included the next PostgreSQL minor release round, scheduled for
February 2021.
</para>
<para>
As a workaround, start the primary server the standby was previously attached to,
@@ -499,7 +475,7 @@
<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

@@ -77,8 +77,7 @@
</para>
<para>
Note that a superuser connection is required to be able to execute the
<command>CHECKPOINT</command> command. From PostgreSQL 15 the <varname>pg_checkpoint</varname>
predefined role removes the need for superuser permissions to perform <command>CHECKPOINT</command> command.
<command>CHECKPOINT</command> command.
</para>
</listitem>
</varlistentry>

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

@@ -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
@@ -79,8 +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. From PostgreSQL 15 the <varname>pg_checkpoint</varname>
predefined role removes the need for superuser permissions to perform <command>CHECKPOINT</command> command.
provided with the <option>-S</option>/<option>--superuser</option>.
</para>
<para>
If &repmgr; is unable to execute the <command>CHECKPOINT</command> command, the switchover
@@ -155,12 +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>EnterpriseDB Corporation</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
@@ -38,18 +38,19 @@
<para>
&repmgr; is developed by
<ulink url="https://www.enterprisedb.com/">EDB</ulink>
<ulink url="https://2ndquadrant.com">2ndQuadrant (EDB)</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>
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 (EDB) 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;.
&repmgr; is fully supported by 2ndQuadrant (EDB)'s
<ulink url="https://www.2ndquadrant.com/en/support/support-postgresql/">24/7 Production Support</ulink>.
EnterpriseDB Corporation, a Major Sponsor of the PostgreSQL project, continues to maintain &repmgr;.
We welcome participation from other organisations and individual developers.
</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"/>.
@@ -279,9 +275,7 @@
<note>
<para>
<option>standby_disconnect_on_failover</option> is available with PostgreSQL 9.5 and later.
Until PostgreSQL 14 this requires that the <literal>repmgr</literal> database user is a superuser.
From PostgreSQL 15 a specific ALTER SYSTEM privilege can be granted to the <literal>repmgr</literal> database
user with e.g. <command>GRANT ALTER SYSTEM ON PARAMETER wal_retrieve_retry_interval TO repmgr</command>.
Additionally this requires that the <literal>repmgr</literal> database user is a superuser.
</para>
</note>
<para>

View File

@@ -345,18 +345,14 @@
</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 +485,6 @@
</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>
@@ -1083,29 +1053,6 @@ 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

@@ -242,12 +242,21 @@
</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>

View File

@@ -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_ */

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

@@ -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
*/
@@ -2365,25 +2323,18 @@ do_node_service(void)
conn = establish_db_connection_by_params(&source_conninfo, true);
}
if (can_execute_checkpoint(conn) == false)
if (is_superuser_connection(conn, NULL) == false)
{
if (runtime_options.dry_run == true)
{
log_warning(_("a CHECKPOINT would be issued here but no authorized connection is available"));
log_warning(_("a CHECKPOINT would be issued here but no superuser connection is available"));
}
else
{
log_warning(_("an authorized connection is required to issue a CHECKPOINT"));
log_warning(_("a superuser connection is required to issue a CHECKPOINT"));
}
if (PQserverVersion(conn) >= 150000)
{
log_hint(_("provide a superuser with -S/--superuser or grant pg_checkpoint role to repmgr user"));
}
else
{
log_hint(_("provide a superuser with -S/--superuser"));
}
log_hint(_("provide a superuser with -S/--superuser"));
}
else
{
@@ -2869,8 +2820,7 @@ 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)
{
@@ -2895,7 +2845,7 @@ 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)
@@ -3619,25 +3569,6 @@ 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)
{
@@ -3680,7 +3611,6 @@ do_node_help(void)
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("");

View File

@@ -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,
@@ -1557,7 +1538,7 @@ _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"));
}
@@ -2018,7 +1999,7 @@ 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 +3338,10 @@ 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);
@@ -3662,9 +3644,8 @@ 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 +3662,6 @@ 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;
@@ -3826,24 +3804,24 @@ 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 */
@@ -4791,7 +4769,6 @@ 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 +4797,7 @@ 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 +4828,8 @@ 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 +4880,7 @@ 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 +4893,7 @@ 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 +4914,14 @@ 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 +5221,6 @@ 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).
*
@@ -5288,7 +5252,7 @@ do_standby_switchover(void)
checkpoint_conn = superuser_conn;
}
if (can_execute_checkpoint(checkpoint_conn) == true)
if (is_superuser_connection(checkpoint_conn, NULL) == true)
{
log_notice(_("issuing CHECKPOINT on node \"%s\" (ID: %i) "),
config_file_options.node_name,
@@ -5297,16 +5261,7 @@ do_standby_switchover(void)
}
else
{
log_warning(_("no authorized connection available, unable to issue CHECKPOINT"));
if (PQserverVersion(local_conn) >= 150000)
{
log_hint(_("provide a superuser with -S/--superuser or grant pg_checkpoint role to repmgr user"));
}
else
{
log_hint(_("provide a superuser with -S/--superuser"));
}
log_warning(_("no superuser connection available, unable to issue CHECKPOINT"));
}
}
@@ -5391,21 +5346,6 @@ 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);
@@ -5419,161 +5359,78 @@ 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
@@ -5686,7 +5543,7 @@ 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);
@@ -5694,7 +5551,7 @@ 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);
@@ -5705,7 +5562,7 @@ 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++;
@@ -5714,7 +5571,7 @@ 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));
@@ -5802,18 +5659,20 @@ 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);
/*
@@ -6996,13 +6855,6 @@ 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);
/*
@@ -7788,117 +7640,6 @@ 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)
{
@@ -8277,9 +8018,9 @@ 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 */
@@ -8299,17 +8040,20 @@ 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;
}

View File

@@ -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

@@ -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

@@ -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)
{
@@ -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;
@@ -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)
{

View File

@@ -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},

121
repmgr.c
View File

@@ -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)
@@ -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

@@ -12,7 +12,7 @@
#
# For details on the configuration file format see the documentation at:
#
# https://repmgr.org/docs/current/configuration-file.html#CONFIGURATION-FILE-FORMAT
# https://repmgr.org/docs/current/configuration-file.html#CONFIGURATION-FILE-FORMAT
#
# =============================================================================
# Required configuration items
@@ -69,14 +69,14 @@
#------------------------------------------------------------------------------
#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).
#location='default' # An arbitrary string defining the location of the node; this
# is used during failover to check visibility of the
# current primary node. For further details see:
# https://repmgr.org/docs/current/repmgrd-network-split.html
# https://repmgr.org/docs/current/repmgrd-network-split.html
#use_replication_slots=no # whether to use physical replication slots
# NOTE: when using replication slots,
@@ -181,8 +181,8 @@
#pg_ctl_options='' # Options to append to "pg_ctl"
#pg_basebackup_options='' # Options to append to "pg_basebackup"
# (Note: when cloning from Barman, repmgr will honour any
# --waldir/--xlogdir setting present in "pg_basebackup_options"
# (Note: when cloning from Barman, repmgr will honour any
# --waldir/--xlogdir setting present in "pg_basebackup_options"
#rsync_options='' # Options to append to "rsync"
ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
@@ -212,8 +212,8 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
#recovery_min_apply_delay= # If provided, "recovery_min_apply_delay" will be set to
# this value (PostgreSQL 9.4 and later). Value can be
# an integer representing milliseconds, or a string
# representing a period of time (e.g. '5 min').
# an integer representing milliseconds, or a string
# representing a period of time (e.g. '5 min').
#------------------------------------------------------------------------------
@@ -299,7 +299,7 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
# a value of zero prevents the node being promoted to primary
# (default: 100)
#connection_check_type='ping' # How to check availability of the upstream node; valid options:
#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
# 'query': execute an SQL statement on the node via the existing connection
@@ -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,
@@ -337,34 +337,24 @@ 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
# Can be true in PostgreSQL 9.5 and later only. Until PostgreSQL 14 repmgr user must be a superuser to use this.
# From PostgreSQL 15 repmgr must be a superuser or have 'ALTER SYSTEM wal_retrieve_retry_interval' privilege.
# (see: https://repmgr.org/docs/current/repmgrd-standby-disconnection-on-failover.html )
# (PostgreSQL 9.5 and later only; repmgr user must be a superuser for this)
#sibling_nodes_disconnect_timeout=30 # If "standby_disconnect_on_failover" is true, the maximum length of time
# (in seconds) to wait for other standbys to confirm they have disconnected their
# (in seconds) to wait for other standbys to confirm they have disconnected their
# WAL receivers
#primary_visibility_consensus=false # If "true", only continue with failover if no standbys have seen
# the primary node recently. *Must* be the same on all nodes.
#always_promote=false # Always promote a node, even if repmgr metadata is outdated
#failover_validation_command='' # Script to execute for an external mechanism to validate the failover
# decision made by repmgrd. Each of the following parameter placeholders
# should be provided, which will be replaced by repmgrd with the appropriate value:
# %n (node_id)
# %a (node_name)
# %v (number of visible nodes)
# %u (number of shared upstream nodes)
# %t (total number of nodes)
# *Must* be the same on all nodes.
#failover_validation_command='' # Script to execute for an external mechanism to validate the failover
# decision made by repmgrd. One or both of the following parameter placeholders
# should be provided, which will be replaced by repmgrd with the appropriate
# value: %n (node_id), %a (node_name). *Must* be the same on all nodes.
#election_rerun_interval=15 # if "failover_validation_command" is set, and the command returns
# an error, pause the specified amount of seconds before rerunning the election.
# The following items are relevant for repmgrd running on the primary,
# and will be ignored on non-primary nodes.
# (see: https://repmgr.org/docs/current/repmgrd-primary-child-disconnection.html )
#
# The following items are relevant for repmgrd running on the primary,
# and will be ignored on non-primary nodes
#child_nodes_check_interval=5 # Interval (in seconds) to check for attached child nodes (standbys)
#child_nodes_connected_min_count=-1 # Minimum number of child nodes which must remain connected, otherwise
# disconnection command will be triggered
@@ -372,7 +362,6 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
# (ignored if "child_nodes_connected_min_count" set)
#child_nodes_disconnect_timeout=30 # Interval between child node disconnection and disconnection command execution
#child_nodes_disconnect_command='' # Command to execute if child node disconnection detected
#child_nodes_connected_include_witness=false # Whether to count the witness node (if in use) as a child node when determining whether to execute child_nodes_disconnect_command.
#------------------------------------------------------------------------------
# service control commands
@@ -395,20 +384,20 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
#
# For example, to use systemd, you can set
#
# service_start_command = 'sudo systemctl start postgresql-16'
# service_start_command = 'sudo systemctl start postgresql-9.6'
# (...)
#
# and then use the following sudoers configuration:
#
# # this is required when running sudo over ssh without -t:
# Defaults:postgres !requiretty
# postgres ALL = NOPASSWD: /usr/bin/systemctl stop postgresql-16, \
# /usr/bin/systemctl start postgresql-16, \
# /usr/bin/systemctl restart postgresql-16
# postgres ALL = NOPASSWD: /usr/bin/systemctl stop postgresql-9.6, \
# /usr/bin/systemctl start postgresql-9.6, \
# /usr/bin/systemctl restart postgresql-9.6
#
# Debian/Ubuntu users: use "sudo pg_ctlcluster" to execute service control commands.
#
# For further 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 = ''
@@ -451,3 +440,4 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
# "repmgr standby switchover" to warn about potential
# issues with shutting down the demotion candidate.

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

@@ -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 "2020-12-07"
#define PG_ACTUAL_VERSION_NUM

View File

@@ -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)
@@ -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);
@@ -2382,29 +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);
}
/*
* It's possible that the primary changed while the witness repmgrd was not
* running. This does not affect the functionality of the witness repmgrd, but
* does mean outdated node metadata will be displayed, so update that.
*/
if (local_node_info.upstream_node_id != primary_node_id)
{
update_node_record_set_upstream(primary_conn, local_node_info.node_id, primary_node_id);
local_node_info.upstream_node_id = primary_node_id;
}
initPQExpBuffer(&event_details);
appendPQExpBuffer(&event_details,
@@ -2493,12 +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);
}
@@ -2573,10 +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;
@@ -2873,7 +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
@@ -2886,20 +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);
/*
@@ -2983,7 +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);
@@ -3091,6 +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);
@@ -3102,7 +2987,6 @@ do_primary_failover(void)
else
{
PQExpBufferData event_details;
PGconn *new_primary_conn;
initPQExpBuffer(&event_details);
appendPQExpBuffer(&event_details,
@@ -3123,6 +3007,7 @@ do_primary_failover(void)
event_details.data);
close_connection(&new_primary_conn);
termPQExpBuffer(&event_details);
}
failover_state = FAILOVER_STATE_REQUIRES_MANUAL_FAILOVER;
}
@@ -3789,7 +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);
@@ -3806,16 +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

@@ -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

@@ -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"));
@@ -411,12 +410,11 @@ 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"));
@@ -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

@@ -369,6 +369,7 @@ check_status_list_free(CheckStatusList *list)
}
const char *
output_check_status(CheckStatus status)
{