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fix memory leak in slow query

This commit is contained in:
yanghao 2021-07-01 09:56:36 +08:00
parent 4b77ee957a
commit 232c049678
1 changed files with 4 additions and 1 deletions
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5
src/gausskernel/cbb/instruments/statement/instr_statement.cpp
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@ -528,7 +528,6 @@ static void CleanStatementTable()
static void FlushStatementToTable(StatementStatContext* suspendList, const knl_u_statement_context* statementCxt)
{
Assert (suspendList != NULL);
RangeVar* relrv = InitStatementRel();
HeapTuple tuple = NULL;
StatementStatContext *flushItem = suspendList;
@ -537,6 +536,8 @@ static void FlushStatementToTable(StatementStatContext* suspendList, const knl_u
PG_TRY();
{
StartTransactionCommand();
PushActiveSnapshot(GetTransactionSnapshot());
RangeVar* relrv = InitStatementRel();
Relation rel = heap_openrv(relrv, RowExclusiveLock);
while (flushItem != NULL) {
tuple = GetStatementTuple(rel, flushItem, statementCxt);
@ -546,6 +547,7 @@ static void FlushStatementToTable(StatementStatContext* suspendList, const knl_u
flushItem = (StatementStatContext *)flushItem->next;
}
heap_close(rel, RowExclusiveLock);
PopActiveSnapshot();
CommitTransactionCommand();
}
PG_CATCH();
@ -559,6 +561,7 @@ static void FlushStatementToTable(StatementStatContext* suspendList, const knl_u
ereport(WARNING, (errmodule(MOD_INSTR),
errmsg("[Statement] flush suspend list to statement_history failed, reason: '%s'", edata->message)));
FreeErrorData(edata);
PopActiveSnapshot();
AbortCurrentTransaction();
}
PG_END_TRY();