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Fix timing of Startup CLOG and MultiXact during Hot Standby

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Patch by me, bug report by Chris Redekop, analysis by Florian Pflug
This commit is contained in:
Simon Riggs
2011-11-02 08:06:54 +00:00
parent 5e4dd5f63b
commit 9e5fe4d492
4 changed files with 33 additions and 6 deletions
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17
src/backend/access/transam/xlog.c
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@ -6384,10 +6384,12 @@ StartupXLOG(void)
oldestActiveXID = checkPoint.oldestActiveXid;
Assert(TransactionIdIsValid(oldestActiveXID));
/* Startup commit log and related stuff */
/*
* Startup commit log and subtrans only. Other SLRUs are not
* maintained during recovery and need not be started yet.
*/
StartupCLOG();
StartupSUBTRANS(oldestActiveXID);
StartupMultiXact();
/*
* If we're beginning at a shutdown checkpoint, we know that
@ -6876,16 +6878,21 @@ StartupXLOG(void)
TransactionIdRetreat(ShmemVariableCache->latestCompletedXid);
/*
* Start up the commit log and related stuff, too. In hot standby mode we
* did this already before WAL replay.
* Start up the commit log and subtrans, if not already done for
* hot standby.
*/
if (standbyState == STANDBY_DISABLED)
{
StartupCLOG();
StartupSUBTRANS(oldestActiveXID);
StartupMultiXact();
}
/*
* Perform end of recovery actions for any SLRUs that need it.
*/
StartupMultiXact();
TrimCLOG();
/* Reload shared-memory state for prepared transactions */
RecoverPreparedTransactions();