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During Hot Standby, set DatabasePath correctly during relcache init file

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deletion, so that we attempt to unlink the correct filepath. unlink()
errors are ignorable there, so lack of a DatabasePath initialization step
did not cause visible problems until a related bug showed up on Solaris.

Code refactored from xact_redo_commit() to
ProcessCommittedInvalidationMessages() in inval.c. Recovery may replay
shared invalidation messages for many databases, so we cannot
SetDatabasePath() once as we do in normal backends. Read the databaseid
from the shared invalidation messages, then set DatabasePath
temporarily before calling RelationCacheInitFileInvalidate().

Problem report by Robert Treat, analysis and fix by me.
This commit is contained in:
Simon Riggs
2010-01-09 16:49:27 +00:00
parent 510f3502eb
commit 42edbd16fb
3 changed files with 113 additions and 17 deletions
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18
src/backend/access/transam/xact.c
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@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.279 2010/01/02 16:57:35 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.280 2010/01/09 16:49:27 sriggs Exp $
*
*-------------------------------------------------------------------------
*/
@ -4404,20 +4404,8 @@ xact_redo_commit(xl_xact_commit *xlrec, TransactionId xid, XLogRecPtr lsn)
* maintain the same order of invalidation then release locks
* as occurs in .
*/
if (xlrec->nmsgs > 0)
{
/*
* Relcache init file invalidation requires processing both
* before and after we send the SI messages. See AtEOXact_Inval()
*/
if (XactCompletionRelcacheInitFileInval(xlrec))
RelationCacheInitFileInvalidate(true);
SendSharedInvalidMessages(inval_msgs, xlrec->nmsgs);
if (XactCompletionRelcacheInitFileInval(xlrec))
RelationCacheInitFileInvalidate(false);
}
ProcessCommittedInvalidationMessages(inval_msgs, xlrec->nmsgs,
XactCompletionRelcacheInitFileInval(xlrec));
/*
* Release locks, if any. We do this for both two phase and normal