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repmgr: add parameter "shutdown_check_timeout"

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Previously, "repmgr standby switchover" used the configuration file parameters
"reconnect_interval" and "reconnect_attempts" to define a timeout to determine
whether the current primary (demotion candidate) has shut down.

However, these parameters are intended for primary failure detection and are
generally lower in value, while a controlled shutdown may take longer, resulting
in the switchover being aborted as repmgr was not waiting long enough.

To prevent this happening, parameter "shutdown_check_timeout" has been added.
This complements the existing "standby_reconnect_timeout" parameter used
by "repmgr standby switchover".

Implements GitHub #504.
This commit is contained in:
Ian Barwick
2018-09-25 11:30:01 +09:00
parent 80bef0eb28
commit 38e3aae053
7 changed files with 34 additions and 20 deletions
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@@ -1,3 +1,7 @@
4.2.0 2018-??-??
repmgr: add parameter "shutdown_check_timeout" for use by "standby switchover";
GitHub #504 (Ian)
4.1.1 2018-09-05
logging: explicitly log the text of failed queries as ERRORs to
assist logfile analysis; GitHub #498