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Initialize shared memory copy of ckptXidEpoch correctly when not in recovery.

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This bug was introduced by commit 20d98ab6e4110087d1816cd105a40fcc8ce0a307,
so backpatch this to 9.0-9.2 like that one.

This fixes bug #6710, reported by Tarvi Pillessaar
This commit is contained in:
Heikki Linnakangas 2012-06-29 19:19:29 +03:00
parent 4741e9afb9
commit 7a5c9ca93a
1 changed files with 3 additions and 4 deletions
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7
src/backend/access/transam/xlog.c
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@ -6227,11 +6227,14 @@ StartupXLOG(void)
ereport(PANIC, ereport(PANIC,
(errmsg("invalid next transaction ID"))); (errmsg("invalid next transaction ID")));
/* initialize shared memory variables from the checkpoint record */
ShmemVariableCache->nextXid = checkPoint.nextXid; ShmemVariableCache->nextXid = checkPoint.nextXid;
ShmemVariableCache->nextOid = checkPoint.nextOid; ShmemVariableCache->nextOid = checkPoint.nextOid;
ShmemVariableCache->oidCount = 0; ShmemVariableCache->oidCount = 0;
MultiXactSetNextMXact(checkPoint.nextMulti, checkPoint.nextMultiOffset); MultiXactSetNextMXact(checkPoint.nextMulti, checkPoint.nextMultiOffset);
SetTransactionIdLimit(checkPoint.oldestXid, checkPoint.oldestXidDB); SetTransactionIdLimit(checkPoint.oldestXid, checkPoint.oldestXidDB);
XLogCtl->ckptXidEpoch = checkPoint.nextXidEpoch;
XLogCtl->ckptXid = checkPoint.nextXid;
/* /*
* We must replay WAL entries using the same TimeLineID they were created * We must replay WAL entries using the same TimeLineID they were created
@ -6330,10 +6333,6 @@ StartupXLOG(void)
/* No need to hold ControlFileLock yet, we aren't up far enough */ /* No need to hold ControlFileLock yet, we aren't up far enough */
UpdateControlFile(); UpdateControlFile();
/* initialize shared-memory copy of latest checkpoint XID/epoch */
XLogCtl->ckptXidEpoch = ControlFile->checkPointCopy.nextXidEpoch;
XLogCtl->ckptXid = ControlFile->checkPointCopy.nextXid;
/* initialize our local copy of minRecoveryPoint */ /* initialize our local copy of minRecoveryPoint */
minRecoveryPoint = ControlFile->minRecoveryPoint; minRecoveryPoint = ControlFile->minRecoveryPoint;