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PG_AUTOCTL DISABLE MONITOR(1) pg_auto_failover PG_AUTOCTL DISABLE MONITOR(1)

NAME

pg_autoctl disable monitor - pg_autoctl disable monitor

pg_autoctl disable monitor - Disable the monitor for this node

SYNOPSIS

It is possible to disable the pg_auto_failover monitor and enable it again online in a running pg_autoctl Postgres node. The main use-cases where this operation is useful is when the monitor node has to be replaced, either after a full crash of the previous monitor node, of for migrating to a new monitor node (hardware replacement, region or zone migration, etc).



 usage: pg_autoctl disable monitor  [ --pgdata --force ]
--pgdata      path to data directory
--force       force unregistering from the monitor


OPTIONS

Location of the Postgres node being managed locally. Defaults to the environment variable PGDATA. Use --monitor to connect to a monitor from anywhere, rather than the monitor URI used by a local Postgres node managed with pg_autoctl.
The --force covers the two following situations:
1.
By default, the command expects to be able to connect to the current monitor. When the current known monitor in the setup is not running anymore, use --force to skip this step.
2.
When pg_autoctl could connect to the monitor and the node is found there, this is normally an error that prevents from disabling the monitor. Using --force allows the command to drop the node from the monitor and continue with disabling the monitor.




ENVIRONMENT

PGDATA

Postgres directory location. Can be used instead of the --pgdata option.


PG_AUTOCTL_MONITOR

Postgres URI to connect to the monitor node, can be used instead of the --monitor option.


XDG_CONFIG_HOME

The pg_autoctl command stores its configuration files in the standard place XDG_CONFIG_HOME. See the XDG Base Directory Specification.


XDG_DATA_HOME

The pg_autoctl command stores its internal states files in the standard place XDG_DATA_HOME, which defaults to ~/.local/share. See the XDG Base Directory Specification.


EXAMPLES

$ pg_autoctl show state


    Name |  Node |      Host:Port |       LSN |   Connection |       Current State |      Assigned State
------+-------+----------------+-----------+--------------+---------------------+--------------------
node1 |     1 | localhost:5501 | 0/4000148 |   read-write |             primary |             primary
node2 |     2 | localhost:5502 | 0/4000148 |    read-only |           secondary |           secondary
node3 |     3 | localhost:5503 | 0/4000148 |    read-only |           secondary |           secondary
$ pg_autoctl disable monitor --pgdata node3
12:41:21 43039 INFO  Found node 3 "node3" (localhost:5503) on the monitor
12:41:21 43039 FATAL Use --force to remove the node from the monitor
$ pg_autoctl disable monitor --pgdata node3 --force
12:41:32 43219 INFO  Removing node 3 "node3" (localhost:5503) from monitor
$ pg_autoctl show state


 Name |  Node |      Host:Port |       LSN |   Connection |       Current State |      Assigned State
------+-------+----------------+-----------+--------------+---------------------+--------------------
node1 |     1 | localhost:5501 | 0/4000760 |   read-write |             primary |             primary
node2 |     2 | localhost:5502 | 0/4000760 |    read-only |           secondary |           secondary


AUTHOR

Microsoft

COPYRIGHT

Copyright (c) Microsoft Corporation. All rights reserved.

November 25, 2023 2.1