pg_autoctl_show_events - Man Page

pg_autoctl show events — pg_autoctl show events

pg_autoctl show events — Prints monitor's state of nodes in a given formation and group

This command outputs the events that the pg_auto_failover events records about state changes of the pg_auto_failover nodes managed by the monitor:

usage: pg_autoctl show events  [ --pgdata --formation --group --count ]

--pgdata      path to data directory
--monitor     pg_auto_failover Monitor Postgres URL
--formation   formation to query, defaults to 'default'
--group       group to query formation, defaults to all
--count       how many events to fetch, defaults to 10
--watch       display an auto-updating dashboard
--json        output data in the JSON format

--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.

--monitor

Postgres URI used to connect to the monitor. Must use the autoctl_node username and target the pg_auto_failover database name. It is possible to show the Postgres URI from the monitor node using the command pg_autoctl show uri.

--formation

List the events recorded for nodes in the given formation. Defaults to default.

--count

By default only the last 10 events are printed.

--watch

Take control of the terminal and display the current state of the system and the last events from the monitor. The display is updated automatically every 500 milliseconds (half a second) and reacts properly to window size change.

Depending on the terminal window size, a different set of columns is visible in the state part of the output. See pg_autoctl watch.

--json

Output a JSON formatted data instead of a table formatted list.

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.

$ pg_autoctl show events --count 2 --json
[
 {
     "nodeid": 1,
     "eventid": 15,
     "groupid": 0,
     "nodehost": "localhost",
     "nodename": "node1",
     "nodeport": 5501,
     "eventtime": "2021-03-18T12:32:36.103467+01:00",
     "goalstate": "primary",
     "description": "Setting goal state of node 1 \"node1\" (localhost:5501) to primary now that at least one secondary candidate node is healthy.",
     "formationid": "default",
     "reportedlsn": "0/4000060",
     "reportedstate": "wait_primary",
     "reportedrepstate": "async",
     "candidatepriority": 50,
     "replicationquorum": true
 },
 {
     "nodeid": 1,
     "eventid": 16,
     "groupid": 0,
     "nodehost": "localhost",
     "nodename": "node1",
     "nodeport": 5501,
     "eventtime": "2021-03-18T12:32:36.215494+01:00",
     "goalstate": "primary",
     "description": "New state is reported by node 1 \"node1\" (localhost:5501): \"primary\"",
     "formationid": "default",
     "reportedlsn": "0/4000110",
     "reportedstate": "primary",
     "reportedrepstate": "quorum",
     "candidatepriority": 50,
     "replicationquorum": true
 }
]

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