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Commite7c5d11

Browse files
knizhnikkelvich
authored andcommitted
Debug 2PC
1 parentf7ac918 commite7c5d11

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2 files changed

+21
-7
lines changed

2 files changed

+21
-7
lines changed

‎multimaster.c

Lines changed: 19 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -538,7 +538,8 @@ MtmBeginTransaction(MtmCurrentTrans* x)
538538
x->gtid.xid=InvalidTransactionId;
539539
MtmUnlock();
540540

541-
MTM_TRACE("MtmLocalTransaction: %s transaction %u uses local snapshot %lu\n",x->isDistributed ?"distributed" :"local",x->xid,x->snapshot);
541+
MTM_TRACE("%d: MtmLocalTransaction: %s transaction %u uses local snapshot %lu\n",
542+
MyProcPid,x->isDistributed ?"distributed" :"local",x->xid,x->snapshot);
542543
}
543544
}
544545

@@ -583,7 +584,7 @@ MtmCheckClusterLock()
583584
}else {
584585
/* All lockers are synchronized their logs */
585586
/* Remove lock and mark them as receovered */
586-
elog(WARNING,"Complete recovery of %d nodes (node mask %llx)",dtm->nLockers,dtm->nodeLockerMask);
587+
elog(WARNING,"Complete recovery of %d nodes (node mask %lx)",dtm->nLockers,dtm->nodeLockerMask);
587588
Assert(dtm->walSenderLockerMask==0);
588589
Assert((dtm->nodeLockerMask&dtm->disabledNodeMask)==dtm->nodeLockerMask);
589590
dtm->disabledNodeMask &= ~dtm->nodeLockerMask;
@@ -606,7 +607,7 @@ static void MtmPrecommitTransaction(MtmCurrentTrans* x)
606607
MtmTransState*ts;
607608
inti;
608609

609-
if (!x->isDistributed) {
610+
if (!x->isDistributed||x->isPrepared) {
610611
return;
611612
}
612613

@@ -657,6 +658,7 @@ static void
657658
MtmPrepareTransaction(MtmCurrentTrans*x)
658659
{
659660
MtmPrecommitTransaction(x);
661+
MTM_TRACE("Prepare transaction %d",x->xid);
660662
x->isPrepared= true;
661663
}
662664

@@ -666,6 +668,7 @@ MtmCommitPreparedTransaction(MtmCurrentTrans* x)
666668
TransactionId*subxids;
667669
intnSubxids;
668670
nSubxids=xactGetCommittedChildren(&subxids);
671+
MTM_TRACE("%d: Commit prepared transaction %d\n",MyProcPid,x->xid);
669672
if (!MtmCommitTransaction(x->xid,nSubxids,subxids))
670673
{
671674
elog(ERROR,"Commit of transaction %d is rejected by DTM",x->xid);
@@ -718,8 +721,12 @@ static int64 MtmGetSlotLag(int nodeId)
718721
staticvoid
719722
MtmEndTransaction(MtmCurrentTrans*x,boolcommit)
720723
{
721-
if (x->isDistributed&&commit) {
724+
MTM_TRACE("%d: End transaction %d, prepared=%d, distributed=%d -> %s\n",MyProcPid,x->xid,x->isPrepared,x->isDistributed,commit ?"commit" :"abort");
725+
if (x->isDistributed&&commit) {
722726
MtmTransState*ts;
727+
if (x->isPrepared) {
728+
return;
729+
}
723730
MtmLock(LW_EXCLUSIVE);
724731
ts=hash_search(xid2state,&x->xid,HASH_FIND,NULL);
725732
Assert(ts!=NULL);
@@ -1541,8 +1548,13 @@ static void MtmProcessUtility(Node *parsetree, const char *queryString,
15411548
switch (stmt->kind)
15421549
{
15431550
caseTRANS_STMT_COMMIT:
1544-
if (MtmUse2PC) {
1551+
if (MtmUse2PC&&dtmTx.isDistributed&&dtmTx.containsDML) {
15451552
char*gid=MtmGenerateGid();
1553+
if (!IsTransactionBlock()) {
1554+
elog(WARNING,"Start transaction block for %d",dtmTx.xid);
1555+
CommitTransactionCommand();
1556+
StartTransactionCommand();
1557+
}
15461558
if (!PrepareTransactionBlock(gid))
15471559
{
15481560
elog(WARNING,"Failed to prepare transaction %s",gid);
@@ -1826,7 +1838,7 @@ void MtmRefreshClusterStatus(bool nowait)
18261838

18271839
clique=MtmFindMaxClique(matrix,MtmNodes,&clique_size);
18281840
if (clique_size >=MtmNodes/2+1) {/* have quorum */
1829-
elog(WARNING,"Find clique %llx, disabledNodeMask %llx",clique,dtm->disabledNodeMask);
1841+
elog(WARNING,"Find clique %lx, disabledNodeMask %lx",clique,dtm->disabledNodeMask);
18301842
MtmLock(LW_EXCLUSIVE);
18311843
mask= ~clique& (((nodemask_t)1 <<MtmNodes)-1)& ~dtm->disabledNodeMask;/* new disabled nodes mask */
18321844
for (i=0;mask!=0;i++,mask >>=1) {
@@ -1853,7 +1865,7 @@ void MtmRefreshClusterStatus(bool nowait)
18531865
MtmSwitchClusterMode(MTM_RECOVERY);
18541866
}
18551867
}else {
1856-
elog(WARNING,"Clique %llx has no quorum",clique);
1868+
elog(WARNING,"Clique %lx has no quorum",clique);
18571869
}
18581870
}
18591871

‎pglogical_apply.c

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -880,6 +880,8 @@ void MtmExecutor(int id, void* work, size_t size)
880880
}
881881
PG_CATCH();
882882
{
883+
MTM_TRACE("%d: REMOTE abort transaction %d\n",MyProcPid,GetCurrentTransactionId());
884+
PG_RE_THROW();
883885
FlushErrorState();
884886
MTM_TRACE("%d: REMOTE abort transaction %d\n",MyProcPid,GetCurrentTransactionId());
885887
AbortCurrentTransaction();

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