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Merge pull request #27184 from taosdata/fix/3_liaohj 

fix(tsdb): check null ptr when un-referencing snapshot.
This commit is contained in:
Haojun Liao 2024-08-13 22:52:48 +08:00 committed by GitHub
parent e92031b723 27b0e285c7
commit 324dc3f404
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GPG Key ID: B5690EEEBB952194
1 changed files with 7 additions and 1 deletions
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8
source/dnode/vnode/src/tsdb/tsdbRead2.c
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@ -5187,6 +5187,7 @@ int32_t tsdbNextDataBlock2(STsdbReader* pReader, bool* hasNext) {
resetAllDataBlockScanInfo(pReader->status.pTableMap, pReader->innerReader[0]->info.window.ekey, step);
if (code != TSDB_CODE_SUCCESS) {
(void) tsdbReleaseReader(pReader);
return code;
}
@ -5213,6 +5214,7 @@ int32_t tsdbNextDataBlock2(STsdbReader* pReader, bool* hasNext) {
code = doOpenReaderImpl(pReader->innerReader[1]);
resetAllDataBlockScanInfo(pReader->innerReader[1]->status.pTableMap, pReader->info.window.ekey, step);
if (code != TSDB_CODE_SUCCESS) {
(void) tsdbReleaseReader(pReader);
return code;
}
@ -5493,6 +5495,7 @@ int32_t tsdbReaderReset2(STsdbReader* pReader, SQueryTableDataCond* pCond) {
code = initFilesetIterator(&pStatus->fileIter, pReader->pReadSnap->pfSetArray, pReader);
if (code != TSDB_CODE_SUCCESS) {
(void) tsdbReleaseReader(pReader);
return code;
}
@ -5826,9 +5829,12 @@ int32_t tsdbTakeReadSnap2(STsdbReader* pReader, _query_reseek_func_t reseek, STs
pSnap->pIMem = pTsdb->imem;
pSnap->pINode = taosMemoryMalloc(sizeof(*pSnap->pINode));
if (pSnap->pINode == NULL) {
(void) tsdbUnrefMemTable(pTsdb->mem, pSnap->pNode, true); // unref the previous refed mem
code = terrno;
if (pTsdb->mem && pSnap->pNode) {
(void) tsdbUnrefMemTable(pTsdb->mem, pSnap->pNode, true); // unref the previous refed mem
}
(void) taosThreadMutexUnlock(&pTsdb->mutex);
goto _exit;
}