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Make standby promotion reset the recovery pause state to 'not paused'.

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If a promotion is triggered while recovery is paused, the paused state ends
and promotion continues. But previously in that case
pg_get_wal_replay_pause_state() returned 'paused' wrongly while a promotion
was ongoing.

This commit changes a standby promotion so that it marks the recovery
pause state as 'not paused' when it's triggered, to fix the issue.

Author: Fujii Masao
Reviewed-by: Dilip Kumar, Kyotaro Horiguchi
Discussion: https://postgr.es/m/f706876c-4894-0ba5-6f4d-79803eeea21b@oss.nttdata.com
This commit is contained in:
Fujii Masao 2021-05-19 13:48:19 +09:00
parent 0a442a408b
commit 167bd48049
1 changed files with 8 additions and 0 deletions
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8
src/backend/access/transam/xlog.c
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@ -12825,6 +12825,14 @@ SetPromoteIsTriggered(void)
XLogCtl->SharedPromoteIsTriggered = true;
SpinLockRelease(&XLogCtl->info_lck);
/*
* Mark the recovery pause state as 'not paused' because the paused state
* ends and promotion continues if a promotion is triggered while recovery
* is paused. Otherwise pg_get_wal_replay_pause_state() can mistakenly
* return 'paused' while a promotion is ongoing.
*/
SetRecoveryPause(false);
LocalPromoteIsTriggered = true;
}