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standby promote: in Pg13 and later, promotion overrides paused WAL replay

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Aborting in this case no longer makes sense, so we apply the checks
to PostgreSQL 12 and earlier only.
This commit is contained in:
Ian Barwick
2020-09-30 14:00:05 +09:00
parent 73d2088a85
commit e86c035242
2 changed files with 11 additions and 7 deletions
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7
repmgr-action-standby.c
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@@ -2333,14 +2333,15 @@ do_standby_promote(void)
}
/*
* Executing "pg_ctl ... promote" when WAL replay is paused and
* WAL is pending replay will mean the standby will not promote
* until replay is resumed.
* In PostgreSQL 12 and earlier, executing "pg_ctl ... promote" when WAL
* replay is paused and WAL is pending replay will mean the standby will
* not promote until replay is resumed.
*
* As that could happen at any time outside repmgr's control, we
* need to avoid leaving a "ticking timebomb" which might cause
* an unexpected status change in the replication cluster.
*/
if (PQserverVersion(local_conn) < 130000)
{
ReplInfo replication_info;
bool replay_paused = false;