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Stop bgworkers during fast shutdown with postmaster in startup phase 

When a postmaster gets into its phase PM_STARTUP, it would start
background workers using BgWorkerStart_PostmasterStart mode immediately,
which would cause problems for a fast shutdown as the postmaster forgets
to send SIGTERM to already-started background workers.  With smart and
immediate shutdowns, this correctly happened, and fast shutdown is the
only mode missing the shot.

Author: Alexander Kukushkin
Reviewed-by: Michael Paquier
Discussion: https://postgr.es/m/CAFh8B=mvnD8+DZUfzpi50DoaDfZRDfd7S=gwj5vU9GYn8UvHkA@mail.gmail.com
Backpatch-through: 9.5
This commit is contained in:
Michael Paquier 2018-08-29 17:10:02 -07:00
parent e0a0cc28d0
commit 55875b6d2a
1 changed files with 1 additions and 1 deletions
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2
src/backend/postmaster/postmaster.c
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@ -2685,7 +2685,7 @@ pmdie(SIGNAL_ARGS)
signal_child(BgWriterPID, SIGTERM);
if (WalReceiverPID != 0)
signal_child(WalReceiverPID, SIGTERM);
if (pmState == PM_RECOVERY)
if (pmState == PM_STARTUP || pmState == PM_RECOVERY)
{
SignalSomeChildren(SIGTERM, BACKEND_TYPE_BGWORKER);