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Fix autovacuum cancellation.

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The problem is caused by me (Andres) having ProcSleep() look at the
wrong PGPROC entry in 5788e258bb2.

Unfortunately it seems hard to write a reliable test for autovacuum
cancellations. Perhaps somebody will come up with a good approach, but
it seems worth fixing the issue even without a test.

Reported-By: Jeff Janes <jeff.janes@gmail.com>
Author: Jeff Janes <jeff.janes@gmail.com>
Discussion: https://postgr.es/m/CAMkU=1wH2aUy+wDRDz+5RZALdcUnEofV1t9PzXS_gBJO9vZZ0Q@mail.gmail.com
This commit is contained in:
Andres Freund 2020-09-08 11:25:34 -07:00
parent 3438c988fd
commit 5871f09c98
1 changed files with 1 additions and 1 deletions
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2
src/backend/storage/lmgr/proc.c
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@ -1318,7 +1318,7 @@ ProcSleep(LOCALLOCK *locallock, LockMethod lockMethodTable)
* Only do it if the worker is not working to protect against Xid * Only do it if the worker is not working to protect against Xid
* wraparound. * wraparound.
*/ */
vacuumFlags = ProcGlobal->vacuumFlags[proc->pgxactoff]; vacuumFlags = ProcGlobal->vacuumFlags[autovac->pgxactoff];
if ((vacuumFlags & PROC_IS_AUTOVACUUM) && if ((vacuumFlags & PROC_IS_AUTOVACUUM) &&
!(vacuumFlags & PROC_VACUUM_FOR_WRAPAROUND)) !(vacuumFlags & PROC_VACUUM_FOR_WRAPAROUND))
{ {