PG_AUTOCTL DISABLE MONITOR

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

--pgdata

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.

--force

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.