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Merge pull request #27221 from taosdata/fix/TD-31440 

fix meta deadlock
This commit is contained in:
Hongze Cheng 2024-08-15 15:26:36 +08:00 committed by GitHub
parent e13ec18e5d b9d085764f
commit 4b03430712
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GPG Key ID: B5690EEEBB952194
2 changed files with 25 additions and 7 deletions
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15
source/dnode/vnode/src/meta/metaQuery.c
View File

@ -275,12 +275,14 @@ void metaPauseTbCursor(SMTbCursor *pTbCur) {
int32_t metaResumeTbCursor(SMTbCursor *pTbCur, int8_t first, int8_t move) {
int32_t code = 0;
int32_t lino;
int8_t locked = 0;
if (pTbCur->paused) {
metaReaderDoInit(&pTbCur->mr, pTbCur->pMeta, META_READER_LOCK);
locked = 1;
code = tdbTbcOpen(((SMeta *)pTbCur->pMeta)->pUidIdx, (TBC **)&pTbCur->pDbc, NULL);
TSDB_CHECK_CODE(code, lino, _exit);
if (code != 0) {
TSDB_CHECK_CODE(code, lino, _exit);
}
if (first) {
code = tdbTbcMoveToFirst((TBC *)pTbCur->pDbc);
@ -304,6 +306,9 @@ int32_t metaResumeTbCursor(SMTbCursor *pTbCur, int8_t first, int8_t move) {
}
_exit:
if (code != 0 && locked) {
metaReaderReleaseLock(&pTbCur->mr);
}
return code;
}
@ -791,6 +796,7 @@ void metaCloseSmaCursor(SMSmaCursor *pSmaCur) {
if (pSmaCur->pMeta) metaULock(pSmaCur->pMeta);
if (pSmaCur->pCur) {
(void)tdbTbcClose(pSmaCur->pCur);
pSmaCur->pCur = NULL;
tdbFree(pSmaCur->pKey);
tdbFree(pSmaCur->pVal);
@ -1307,7 +1313,8 @@ int32_t metaFilterTableIds(void *pVnode, SMetaFltParam *arg, SArray *pUids) {
}
TAOS_CHECK_GOTO(metaCreateTagIdxKey(pCursor->suid, pCursor->cid, tagData, nTagData, pCursor->type,
param->reverse ? INT64_MAX : INT64_MIN, &pKey, &nKey), NULL, END);
param->reverse ? INT64_MAX : INT64_MIN, &pKey, &nKey),
NULL, END);
int cmp = 0;
TAOS_CHECK_GOTO(tdbTbcMoveTo(pCursor->pCur, pKey, nKey, &cmp), 0, END);

17
source/libs/executor/src/sysscanoperator.c
View File

@ -570,7 +570,12 @@ static SSDataBlock* sysTableScanUserCols(SOperatorInfo* pOperator) {
if (pInfo->pCur == NULL) {
pInfo->pCur = pAPI->metaFn.openTableMetaCursor(pInfo->readHandle.vnode);
} else {
(void)pAPI->metaFn.resumeTableMetaCursor(pInfo->pCur, 0, 0);
code = pAPI->metaFn.resumeTableMetaCursor(pInfo->pCur, 0, 0);
if (code != 0) {
pAPI->metaFn.closeTableMetaCursor(pInfo->pCur);
pInfo->pCur = NULL;
QUERY_CHECK_CODE(code, lino, _end);
}
}
if (pInfo->pSchema == NULL) {
@ -786,7 +791,8 @@ static SSDataBlock* sysTableScanUserTags(SOperatorInfo* pOperator) {
pInfo->pCur = pAPI->metaFn.openTableMetaCursor(pInfo->readHandle.vnode);
QUERY_CHECK_NULL(pInfo->pCur, code, lino, _end, terrno);
} else {
(void)pAPI->metaFn.resumeTableMetaCursor(pInfo->pCur, 0, 0);
code = pAPI->metaFn.resumeTableMetaCursor(pInfo->pCur, 0, 0);
QUERY_CHECK_CODE(code, lino, _end);
}
while ((ret = pAPI->metaFn.cursorNext(pInfo->pCur, TSDB_SUPER_TABLE)) == 0) {
@ -1589,7 +1595,12 @@ static SSDataBlock* sysTableBuildUserTables(SOperatorInfo* pOperator) {
firstMetaCursor = 1;
}
if (!firstMetaCursor) {
(void)pAPI->metaFn.resumeTableMetaCursor(pInfo->pCur, 0, 1);
code = pAPI->metaFn.resumeTableMetaCursor(pInfo->pCur, 0, 1);
if (code != 0) {
pAPI->metaFn.closeTableMetaCursor(pInfo->pCur);
pInfo->pCur = NULL;
QUERY_CHECK_CODE(code, lino, _end);
}
}
blockDataCleanup(pInfo->pRes);