Make WaitForLSNReplay() issue FATAL on postmaster death

Reported-by: Michael Paquier
Discussion: https://postgr.es/m/ZvY2C8N4ZqgCFaLu%40paquier.xyz
Reviewed-by: Pavel Borisov
This commit is contained in:
Alexander Korotkov 2024-10-24 14:38:06 +03:00
parent 5035172e4a
commit 6cfebfe88b

View File

@ -222,7 +222,7 @@ WaitForLSNReplay(XLogRecPtr targetLSN, int64 timeout)
{
XLogRecPtr currentLSN;
TimestampTz endtime = 0;
int wake_events = WL_LATCH_SET | WL_EXIT_ON_PM_DEATH;
int wake_events = WL_LATCH_SET | WL_POSTMASTER_DEATH;
/* Shouldn't be called when shmem isn't initialized */
Assert(waitLSNState);
@ -313,6 +313,16 @@ WaitForLSNReplay(XLogRecPtr targetLSN, int64 timeout)
rc = WaitLatch(MyLatch, wake_events, delay_ms,
WAIT_EVENT_WAIT_FOR_WAL_REPLAY);
/*
* Emergency bailout if postmaster has died. This is to avoid the
* necessity for manual cleanup of all postmaster children.
*/
if (rc & WL_POSTMASTER_DEATH)
ereport(FATAL,
(errcode(ERRCODE_ADMIN_SHUTDOWN),
errmsg("terminating connection due to unexpected postmaster exit"),
errcontext("while waiting for LSN replay")));
if (rc & WL_LATCH_SET)
ResetLatch(MyLatch);
}