PG_AUTOCTL_SHOW_EVENTS(1)

πŸ“¦
version 2.1 Β· 2 versions
, in fedora 43, fedora 44

✨ NAME ✨

pg_autoctl show events β€” bestie, this is the one that spills the tea β˜• on everything the monitor has been watching. It prints out the monitor's state of nodes in a given formation and group, so you can see every little glow-up your pg_auto_failover nodes went through.


🌸 SYNOPSIS 🌸

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

πŸ’… OPTIONS πŸ’…

  • --pgdata β€” where your local Postgres node lives, like, the actual location of the data directory of the node being managed locally. It defaults to the environment variable PGDATA. And heads up, bestie: use --monitor if you wanna connect to a monitor from anywhere, instead of using the monitor URI that a local Postgres node managed with pg_autoctl is using. 🫢
  • --monitor β€” the Postgres URI used to connect to the monitor. It must use the autoctl_node username and target the pg_auto_failover database name. No cap, that part is not negotiable. If you need to see the Postgres URI from the monitor node itself, you can run pg_autoctl show uri. πŸ”₯
  • --formation β€” list the events recorded for nodes in the given formation. Defaults to default. πŸ’–
  • --count β€” by default only the last 10 events are printed. That's it, that's the whole thing. πŸŽ€
  • --watch β€” okay this one is main character energy: it takes control of the terminal and displays the current state of the system plus the last events from the monitor. The display updates automatically every 500 milliseconds (half a second, literally) and it reacts properly to window size change. Iconic. πŸ¦‹

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

  • --json β€” output a JSON formatted data instead of a table formatted list. For when you wanna pipe it somewhere cute. ⭐

🌈 ENVIRONMENT 🌈

  • PGDATA β€” Postgres directory location. Can be used instead of the --pgdata option. 🌸
  • PG_AUTOCTL_MONITOR β€” Postgres URI to connect to the monitor node, can be used instead of the --monitor option. πŸ’œ
  • XDG_CONFIG_HOME β€” the pg_autoctl command stores its configuration files in the standard place XDG_CONFIG_HOME. See the XDG Base Directory Specification. 🧚
  • XDG_DATA_HOME β€” 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. πŸ“

πŸŽ€ EXAMPLES πŸŽ€

Not me showing you the receipts in JSON form:

$ 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
 }
]

πŸ‘‘ AUTHOR πŸ‘‘

Microsoft


Copyright (c) Microsoft Corporation. All rights reserved.


okay that's the whole page, you ate that πŸ’… version 2.1, dated Jan 18, 2025, from the pg_auto_failover crew β€” mwah, go run it bestie 🫢✨
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