diff --git a/source/dnode/vnode/src/tsdb/tsdbCache.c b/source/dnode/vnode/src/tsdb/tsdbCache.c
index 482b194a1f..2c70fc1816 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCache.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCache.c
@@ -3179,7 +3179,7 @@ static int32_t nextRowIterGet(CacheNextRowIter *pIter, TSDBROW **ppRow, bool *pI
         }
 
         if (!taosArrayAddAll(pInfo->pTombData, pIter->pMemDelData)) {
-          TAOS_CHECK_GOTO(TSDB_CODE_OUT_OF_MEMORY, &lino, _err);
+          TAOS_CHECK_GOTO(terrno, &lino, _err);
         }
 
         size_t delSize = TARRAY_SIZE(pInfo->pTombData);
diff --git a/source/dnode/vnode/src/tsdb/tsdbRead2.c b/source/dnode/vnode/src/tsdb/tsdbRead2.c
index 0e958b155b..5b6511a38e 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead2.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead2.c
@@ -299,7 +299,7 @@ static int32_t filesetIteratorNext(SFilesetIter* pIter, STsdbReader* pReader, bo
 
   pReader->status.pLDataIterArray = taosArrayInit(4, POINTER_BYTES);
   if (pReader->status.pLDataIterArray == NULL) {
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
 
   // check file the time range of coverage
@@ -556,7 +556,7 @@ static int32_t tsdbReaderCreate(SVnode* pVnode, SQueryTableDataCond* pCond, void
 
   pReader->idStr = (idstr != NULL) ? taosStrdup(idstr) : NULL;
   if (idstr != NULL && pReader->idStr == NULL) {
-    code = TSDB_CODE_OUT_OF_MEMORY;
+    code = terrno;
     goto _end;
   }
 
@@ -2918,7 +2918,7 @@ int32_t initDelSkylineIterator(STableBlockScanInfo* pBlockScanInfo, int32_t orde
   } else {
     void* p1 = taosArrayAddAll(pSource, pBlockScanInfo->pMemDelData);
     if (p1 == NULL) {
-      return TSDB_CODE_OUT_OF_MEMORY;
+      return terrno;
     }
   }
 
diff --git a/source/libs/catalog/src/catalog.c b/source/libs/catalog/src/catalog.c
index 619f4bc114..0ea1d98312 100644
--- a/source/libs/catalog/src/catalog.c
+++ b/source/libs/catalog/src/catalog.c
@@ -1461,7 +1461,7 @@ int32_t catalogGetAllMeta(SCatalog* pCtg, SRequestConnInfo* pConn, const SCatalo
     pRsp->pTableMeta = taosArrayInit(tbNum, POINTER_BYTES);
     if (NULL == pRsp->pTableMeta) {
       ctgError("taosArrayInit %d failed", tbNum);
-      CTG_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
+      CTG_ERR_JRET(terrno);
     }
 
     for (int32_t i = 0; i < tbNum; ++i) {
@@ -1476,7 +1476,7 @@ int32_t catalogGetAllMeta(SCatalog* pCtg, SRequestConnInfo* pConn, const SCatalo
       if (NULL == taosArrayPush(pRsp->pTableMeta, &pTableMeta)) {
         ctgError("taosArrayPush failed, idx:%d", i);
         taosMemoryFreeClear(pTableMeta);
-        CTG_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
+        CTG_ERR_JRET(terrno);
       }
     }
   }
diff --git a/source/libs/executor/src/exchangeoperator.c b/source/libs/executor/src/exchangeoperator.c
index fa6f61406c..2db007541b 100644
--- a/source/libs/executor/src/exchangeoperator.c
+++ b/source/libs/executor/src/exchangeoperator.c
@@ -236,7 +236,7 @@ static SSDataBlock* doLoadRemoteDataImpl(SOperatorInfo* pOperator) {
       taosArrayRemove(pExchangeInfo->pResultBlockList, 0);
       void* tmp = taosArrayPush(pExchangeInfo->pRecycledBlocks, &p);
       if (!tmp) {
-        code = TSDB_CODE_OUT_OF_MEMORY;
+        code = terrno;
         qError("%s failed at line %d since %s", __func__, __LINE__, tstrerror(code));
         pTaskInfo->code = code;
         T_LONG_JMP(pTaskInfo->env, code);
@@ -590,7 +590,7 @@ int32_t buildTableScanOperatorParam(SOperatorParam** ppRes, SArray* pUidList, in
   if (NULL == pScan->pUidList) {
     taosMemoryFree(pScan);
     taosMemoryFreeClear(*ppRes);
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
   pScan->tableSeq = tableSeq;
 
diff --git a/source/libs/executor/src/querytask.c b/source/libs/executor/src/querytask.c
index 4821461ca2..37461382dd 100644
--- a/source/libs/executor/src/querytask.c
+++ b/source/libs/executor/src/querytask.c
@@ -73,7 +73,7 @@ int32_t doCreateTask(uint64_t queryId, uint64_t taskId, int32_t vgId, EOPTR_EXEC
   p->schemaInfos = taosArrayInit(1, sizeof(SSchemaInfo));
   if (p->id.str == NULL || p->schemaInfos == NULL) {
     doDestroyTask(p);
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
 
   *pTaskInfo = p;
diff --git a/source/libs/parser/src/parInsertStmt.c b/source/libs/parser/src/parInsertStmt.c
index 06b9c2d9ef..500d0e213e 100644
--- a/source/libs/parser/src/parInsertStmt.c
+++ b/source/libs/parser/src/parInsertStmt.c
@@ -46,7 +46,7 @@ int32_t qCloneCurrentTbData(STableDataCxt* pDataBlock, SSubmitTbData** pData) {
   }
   pNew->aCol = taosArrayDup(pDataBlock->pData->aCol, NULL);
   if (!pNew->aCol) {
-    code = TSDB_CODE_OUT_OF_MEMORY;
+    code = terrno;
     taosMemoryFreeClear(*pData);
     return code;
   }
@@ -951,7 +951,7 @@ int32_t qResetStmtColumns(SArray* pCols, bool deepClear) {
     SColData* pCol = (SColData*)taosArrayGet(pCols, i);
     if (pCol == NULL) {
       qError("qResetStmtColumns column is NULL");
-      return TSDB_CODE_OUT_OF_MEMORY;
+      return terrno;
     }
     if (deepClear) {
       tColDataDeepClear(pCol);
@@ -971,7 +971,7 @@ int32_t qResetStmtDataBlock(STableDataCxt* block, bool deepClear) {
     SColData* pCol = (SColData*)taosArrayGet(pBlock->pData->aCol, i);
     if (pCol == NULL) {
       qError("qResetStmtDataBlock column is NULL");
-      return TSDB_CODE_OUT_OF_MEMORY;
+      return terrno;
     }
     if (deepClear) {
       tColDataDeepClear(pCol);
@@ -1033,7 +1033,7 @@ int32_t qCloneStmtDataBlock(STableDataCxt** pDst, STableDataCxt* pSrc, bool rese
     pNewTb->aCol = taosArrayDup(pCxt->pData->aCol, NULL);
     if (NULL == pNewTb->aCol) {
       insDestroyTableDataCxt(*pDst);
-      return TSDB_CODE_OUT_OF_MEMORY;
+      return terrno;
     }
 
     pNewCxt->pData = pNewTb;
diff --git a/source/libs/parser/src/parInsertUtil.c b/source/libs/parser/src/parInsertUtil.c
index 05373aefb3..4f9b46176c 100644
--- a/source/libs/parser/src/parInsertUtil.c
+++ b/source/libs/parser/src/parInsertUtil.c
@@ -856,7 +856,7 @@ int32_t insBuildVgDataBlocks(SHashObj* pVgroupsHashObj, SArray* pVgDataCxtList,
       code = buildSubmitReq(src->vgId, src->pData, &dst->pData, &dst->size);
     }
     if (TSDB_CODE_SUCCESS == code) {
-      code = (NULL == taosArrayPush(pDataBlocks, &dst) ? TSDB_CODE_OUT_OF_MEMORY : TSDB_CODE_SUCCESS);
+      code = (NULL == taosArrayPush(pDataBlocks, &dst) ? terrno : TSDB_CODE_SUCCESS);
     }
   }
 
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index fe3e9b10da..798793bf55 100755
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -522,7 +522,7 @@ static int32_t rewriteDropTableWithMetaCache(STranslateContext* pCxt) {
   if (!pMetaCache->pTableMeta &&
       !(pMetaCache->pTableMeta =
             taosHashInit(tbMetaExSize, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_NO_LOCK))) {
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
 
   SMetaRes** ppMetaRes = NULL;
@@ -2087,7 +2087,7 @@ static EDealRes translateNormalValue(STranslateContext* pCxt, SValueNode* pVal,
       pVal->datum.p = taosMemoryCalloc(1, size + VARSTR_HEADER_SIZE);
       if (NULL == pVal->datum.p) {
         if (isHexChar) taosMemoryFree(data);
-        return generateDealNodeErrMsg(pCxt, TSDB_CODE_OUT_OF_MEMORY);
+        return generateDealNodeErrMsg(pCxt, terrno);
       }
       varDataSetLen(pVal->datum.p, size);
       memcpy(varDataVal(pVal->datum.p), data, size);
@@ -2103,7 +2103,7 @@ static EDealRes translateNormalValue(STranslateContext* pCxt, SValueNode* pVal,
       int32_t len = TMIN(targetDt.bytes - VARSTR_HEADER_SIZE, vlen);
       pVal->datum.p = taosMemoryCalloc(1, len + VARSTR_HEADER_SIZE + 1);
       if (NULL == pVal->datum.p) {
-        return generateDealNodeErrMsg(pCxt, TSDB_CODE_OUT_OF_MEMORY);
+        return generateDealNodeErrMsg(pCxt, terrno);
       }
       varDataSetLen(pVal->datum.p, len);
       strncpy(varDataVal(pVal->datum.p), pVal->literal, len);
@@ -2119,7 +2119,7 @@ static EDealRes translateNormalValue(STranslateContext* pCxt, SValueNode* pVal,
     case TSDB_DATA_TYPE_NCHAR: {
       pVal->datum.p = taosMemoryCalloc(1, targetDt.bytes + 1);
       if (NULL == pVal->datum.p) {
-        return generateDealNodeErrMsg(pCxt, TSDB_CODE_OUT_OF_MEMORY);
+        return generateDealNodeErrMsg(pCxt, terrno);
       }
 
       int32_t len = 0;
@@ -6264,7 +6264,7 @@ static int32_t unionEqualCondTbnamesOfSameTable(SArray* aTableTbnames, SEqCondTb
     SEqCondTbNameTableInfo* info = taosArrayGet(aTableTbnames, i);
     if (info->pRealTable == pInfo->pRealTable) {
       if (NULL == taosArrayAddAll(info->aTbnames, pInfo->aTbnames)) {
-        code = TSDB_CODE_OUT_OF_MEMORY;
+        code = terrno;
         break;
       }
       taosArrayDestroy(pInfo->aTbnames);
diff --git a/source/libs/parser/src/parUtil.c b/source/libs/parser/src/parUtil.c
index 1b90144a2c..1ce8b04324 100644
--- a/source/libs/parser/src/parUtil.c
+++ b/source/libs/parser/src/parUtil.c
@@ -1124,7 +1124,7 @@ int32_t getDbVgInfoFromCache(SParseMetaCache* pMetaCache, const char* pDbFName,
   if (TSDB_CODE_SUCCESS == code && NULL != pVgList) {
     *pVgInfo = taosArrayDup(pVgList, NULL);
     if (NULL == *pVgInfo) {
-      code = TSDB_CODE_OUT_OF_MEMORY;
+      code = terrno;
     }
   }
   return code;
@@ -1439,7 +1439,7 @@ int32_t getDnodeListFromCache(SParseMetaCache* pMetaCache, SArray** pDnodes) {
 
   *pDnodes = taosArrayDup((SArray*)pRes->pRes, NULL);
   if (NULL == *pDnodes) {
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
   return TSDB_CODE_SUCCESS;
 }
diff --git a/source/libs/stream/src/streamBackendRocksdb.c b/source/libs/stream/src/streamBackendRocksdb.c
index 69ccea8e29..cc87b96250 100644
--- a/source/libs/stream/src/streamBackendRocksdb.c
+++ b/source/libs/stream/src/streamBackendRocksdb.c
@@ -2190,7 +2190,7 @@ int32_t valueDecode(void* value, int32_t vlen, int64_t* ttl, char** dest) {
     // compatiable with previous data
     p = taosDecodeBinary(p, (void**)&pOutput, key.len);
     if (p == NULL) {
-      code = TSDB_CODE_OUT_OF_MEMORY;
+      code = terrno;
       goto _EXCEPT;
     }
 
@@ -2205,7 +2205,7 @@ int32_t valueDecode(void* value, int32_t vlen, int64_t* ttl, char** dest) {
     if (key.compress == 1) {
       p = taosDecodeBinary(p, (void**)&pCompressData, key.len);
       if (p == NULL) {
-        code = TSDB_CODE_OUT_OF_MEMORY;
+        code = terrno;
         goto _EXCEPT;
       }
       pOutput = taosMemoryCalloc(1, key.rawLen);
@@ -2224,7 +2224,7 @@ int32_t valueDecode(void* value, int32_t vlen, int64_t* ttl, char** dest) {
     } else {
       p = taosDecodeBinary(p, (void**)&pOutput, key.len);
       if (p == NULL) {
-        code = TSDB_CODE_OUT_OF_MEMORY;
+        code = terrno;
         goto _EXCEPT;
       }
     }
@@ -3464,7 +3464,7 @@ int32_t streamStateAddIfNotExist_rocksdb(SStreamState* pState, const SWinKey* ke
   }
   *pVal = taosMemoryMalloc(size);
   if (*pVal == NULL) {
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
   memset(*pVal, 0, size);
   return 0;
@@ -4154,7 +4154,7 @@ int32_t streamStateSessionAddIfNotExist_rocksdb(SStreamState* pState, SSessionKe
 
   void* tmp = taosMemoryMalloc(valSize);
   if (tmp == NULL) {
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
 
   SStreamStateCur* pCur = streamStateSessionSeekKeyCurrentPrev_rocksdb(pState, key);
diff --git a/source/libs/stream/src/streamCheckpoint.c b/source/libs/stream/src/streamCheckpoint.c
index 47eec2119a..699774ed52 100644
--- a/source/libs/stream/src/streamCheckpoint.c
+++ b/source/libs/stream/src/streamCheckpoint.c
@@ -62,7 +62,7 @@ int32_t createChkptTriggerBlock(SStreamTask* pTask, int32_t checkpointType, int6
   if (pChkpoint->blocks == NULL) {
     taosMemoryFree(pBlock);
     taosFreeQitem(pChkpoint);
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
 
   void* p = taosArrayPush(pChkpoint->blocks, pBlock);
@@ -70,7 +70,7 @@ int32_t createChkptTriggerBlock(SStreamTask* pTask, int32_t checkpointType, int6
     taosArrayDestroy(pChkpoint->blocks);
     taosMemoryFree(pBlock);
     taosFreeQitem(pChkpoint);
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
 
   *pRes = pChkpoint;
@@ -740,7 +740,7 @@ int32_t uploadCheckpointData(SStreamTask* pTask, int64_t checkpointId, int64_t d
 
   SArray* toDelFiles = taosArrayInit(4, POINTER_BYTES);
   if (toDelFiles == NULL) {
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
 
   if ((code = taskDbGenChkpUploadData(pTask->pBackend, pMeta->bkdChkptMgt, checkpointId, type, &path, toDelFiles,
@@ -1077,7 +1077,7 @@ int32_t doSendRetrieveTriggerMsg(SStreamTask* pTask, SArray* pNotSendList) {
 
     SRetrieveChkptTriggerReq* pReq = rpcMallocCont(sizeof(SRetrieveChkptTriggerReq));
     if (pReq == NULL) {
-      code = TSDB_CODE_OUT_OF_MEMORY;
+      code = terrno;
       stError("vgId:%d failed to create msg to retrieve trigger msg for task:%s exec, code:out of memory", vgId, pId);
       continue;
     }
diff --git a/source/libs/stream/src/streamData.c b/source/libs/stream/src/streamData.c
index d85435d21c..58826b2e99 100644
--- a/source/libs/stream/src/streamData.c
+++ b/source/libs/stream/src/streamData.c
@@ -191,7 +191,7 @@ int32_t streamMergedSubmitNew(SStreamMergedSubmit** pSubmit) {
   if ((*pSubmit)->submits == NULL) {
     taosFreeQitem(*pSubmit);
     *pSubmit = NULL;
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
 
   (*pSubmit)->type = STREAM_INPUT__MERGED_SUBMIT;
diff --git a/source/libs/stream/src/streamDispatch.c b/source/libs/stream/src/streamDispatch.c
index 111ce37b41..a3146ae9d4 100644
--- a/source/libs/stream/src/streamDispatch.c
+++ b/source/libs/stream/src/streamDispatch.c
@@ -73,7 +73,7 @@ static int32_t tInitStreamDispatchReq(SStreamDispatchReq* pReq, const SStreamTas
   if (pReq->data == NULL || pReq->dataLen == NULL) {
     taosArrayDestroyP(pReq->data, taosMemoryFree);
     taosArrayDestroy(pReq->dataLen);
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
 
   return TSDB_CODE_SUCCESS;
@@ -110,7 +110,7 @@ int32_t streamTaskBroadcastRetrieveReq(SStreamTask* pTask, SStreamRetrieveReq* r
 
     buf = rpcMallocCont(sizeof(SMsgHead) + len);
     if (buf == NULL) {
-      return TSDB_CODE_OUT_OF_MEMORY;
+      return terrno;
     }
 
     ((SMsgHead*)buf)->vgId = htonl(pEpInfo->nodeId);
@@ -209,7 +209,7 @@ int32_t streamSendCheckMsg(SStreamTask* pTask, const SStreamTaskCheckReq* pReq,
 
   buf = rpcMallocCont(sizeof(SMsgHead) + tlen);
   if (buf == NULL) {
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
 
   ((SMsgHead*)buf)->vgId = htonl(nodeId);
diff --git a/source/libs/tfs/src/tfs.c b/source/libs/tfs/src/tfs.c
index a353bd7941..51fda85f0a 100644
--- a/source/libs/tfs/src/tfs.c
+++ b/source/libs/tfs/src/tfs.c
@@ -295,7 +295,7 @@ int32_t tfsMkdirRecurAt(STfs *pTfs, const char *rname, SDiskID diskId) {
       // https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man3/dirname.3.html
 
       if ((dir = taosStrdup(taosDirName(s))) == NULL) {
-        TAOS_CHECK_GOTO(TSDB_CODE_OUT_OF_MEMORY, &lino, _exit);
+        TAOS_CHECK_GOTO(terrno, &lino, _exit);
       }
 
       if (strlen(dir) >= strlen(rname)) {  // TODO: check if it is necessary for equal length
diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 1dc4f7bfcf..78b28fb4ac 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -2324,8 +2324,8 @@ static int32_t createThrdObj(void* trans, SCliThrd** ppThrd) {
 
   pThrd->pool = createConnPool(4);
   if (pThrd->pool == NULL) {
-    code = TSDB_CODE_OUT_OF_MEMORY;
-    TAOS_CHECK_GOTO(TSDB_CODE_OUT_OF_MEMORY, NULL, _end);
+    code = terrno;
+    TAOS_CHECK_GOTO(terrno, NULL, _end);
   }
   if ((code = transDQCreate(pThrd->loop, &pThrd->delayQueue)) != 0) {
     TAOS_CHECK_GOTO(code, NULL, _end);
@@ -2368,7 +2368,7 @@ static int32_t createThrdObj(void* trans, SCliThrd** ppThrd) {
     }
     (void)uv_timer_init(pThrd->loop, timer);
     if (taosArrayPush(pThrd->timerList, &timer) == NULL) {
-      TAOS_CHECK_GOTO(TSDB_CODE_OUT_OF_MEMORY, NULL, _end);
+      TAOS_CHECK_GOTO(terrno, NULL, _end);
     }
   }
   pThrd->nextTimeout = taosGetTimestampMs() + CONN_PERSIST_TIME(pTransInst->idleTime);
diff --git a/source/libs/wal/src/walWrite.c b/source/libs/wal/src/walWrite.c
index c98714df19..bb6dbbeeb6 100644
--- a/source/libs/wal/src/walWrite.c
+++ b/source/libs/wal/src/walWrite.c
@@ -601,7 +601,7 @@ static FORCE_INLINE int32_t walWriteImpl(SWal *pWal, int64_t index, tmsg_t msgTy
       wError("vgId:%d, file:%" PRId64 ".log, failed to malloc since %s", pWal->cfg.vgId, walGetLastFileFirstVer(pWal),
              strerror(errno));
 
-      TAOS_CHECK_GOTO(TSDB_CODE_OUT_OF_MEMORY, &lino, _exit);
+      TAOS_CHECK_GOTO(terrno, &lino, _exit);
     }
     TAOS_UNUSED(memset(newBody, 0, cyptedBodyLen));
     TAOS_UNUSED(memcpy(newBody, body, plainBodyLen));
@@ -613,7 +613,7 @@ static FORCE_INLINE int32_t walWriteImpl(SWal *pWal, int64_t index, tmsg_t msgTy
 
       if (newBody != NULL) taosMemoryFreeClear(newBody);
 
-      TAOS_CHECK_GOTO(TSDB_CODE_OUT_OF_MEMORY, &lino, _exit);
+      TAOS_CHECK_GOTO(terrno, &lino, _exit);
     }
 
     SCryptOpts opts;
diff --git a/source/util/src/talgo.c b/source/util/src/talgo.c
index f1ee40eccf..21201df309 100644
--- a/source/util/src/talgo.c
+++ b/source/util/src/talgo.c
@@ -335,7 +335,7 @@ int32_t taosheapadjust(void *base, int32_t size, int32_t start, int32_t end, con
   if (buf == NULL) {
     tmp = taosMemoryMalloc(size);
     if (NULL == tmp) {
-      return TSDB_CODE_OUT_OF_MEMORY;
+      return terrno;
     }
   } else {
     tmp = buf;
@@ -467,7 +467,7 @@ static int32_t taosMergeSortHelper(void *src, int64_t numOfElem, int64_t size, c
     int32_t currSize;
     void   *tmp = taosMemoryMalloc(numOfElem * size);
     if (tmp == NULL) {
-      return TSDB_CODE_OUT_OF_MEMORY;
+      return terrno;
     }
 
     for (currSize = THRESHOLD_SIZE; currSize <= numOfElem - 1; currSize = 2 * currSize) {
diff --git a/source/util/src/tbase64.c b/source/util/src/tbase64.c
index 86b069b853..f623d34a2f 100644
--- a/source/util/src/tbase64.c
+++ b/source/util/src/tbase64.c
@@ -22,7 +22,7 @@ int32_t base64_encode(const uint8_t *value, int32_t vlen, char **result) {
   uint8_t oval = 0;
   *result = (char *)taosMemoryMalloc((size_t)(vlen * 4) / 3 + 10);
   if (*result == NULL) {
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
   char *out = *result;
   while (vlen >= 3) {
@@ -58,7 +58,7 @@ int32_t base64_decode(const char *value, int32_t inlen, int32_t *outlen, uint8_t
   int32_t c1, c2, c3, c4;
   *result = (uint8_t *)taosMemoryMalloc((size_t)(inlen * 3) / 4 + 1);
   if (*result == NULL) {
-    return TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
   uint8_t *out = *result;
 
diff --git a/source/util/src/tencode.c b/source/util/src/tencode.c
index e962edaa27..db59d19fb5 100644
--- a/source/util/src/tencode.c
+++ b/source/util/src/tencode.c
@@ -78,7 +78,7 @@ int32_t tStartEncode(SEncoder* pCoder) {
 
     pNode = tEncoderMalloc(pCoder, sizeof(*pNode));
     if (pNode == NULL) {
-      TAOS_RETURN(TSDB_CODE_OUT_OF_MEMORY);
+      TAOS_RETURN(terrno);
     }
 
     pNode->data = pCoder->data;
@@ -126,7 +126,7 @@ int32_t tStartDecode(SDecoder* pCoder) {
 
   pNode = tDecoderMalloc(pCoder, sizeof(*pNode));
   if (pNode == NULL) {
-    TAOS_RETURN(TSDB_CODE_OUT_OF_MEMORY);
+    TAOS_RETURN(terrno);
   }
 
   pNode->data = pCoder->data;
diff --git a/source/util/src/tscalablebf.c b/source/util/src/tscalablebf.c
index ebc076e02e..a45d157366 100644
--- a/source/util/src/tscalablebf.c
+++ b/source/util/src/tscalablebf.c
@@ -46,7 +46,7 @@ int32_t tScalableBfInit(uint64_t expectedEntries, double errorRate, SScalableBf*
   pSBf->numBits = 0;
   pSBf->bfArray = taosArrayInit(defaultSize, sizeof(void*));
   if (!pSBf->bfArray) {
-    code = TSDB_CODE_OUT_OF_MEMORY;
+    code = terrno;
     QUERY_CHECK_CODE(code, lino, _error);
   }
 
@@ -76,7 +76,7 @@ int32_t tScalableBfPutNoCheck(SScalableBf* pSBf, const void* keyBuf, uint32_t le
   int32_t       size = taosArrayGetSize(pSBf->bfArray);
   SBloomFilter* pNormalBf = taosArrayGetP(pSBf->bfArray, size - 1);
   if (!pNormalBf) {
-    code = TSDB_CODE_OUT_OF_MEMORY;
+    code = terrno;
     QUERY_CHECK_CODE(code, lino, _error);
   }
   if (tBloomFilterIsFull(pNormalBf)) {
@@ -236,7 +236,7 @@ int32_t tScalableBfDecode(SDecoder* pDecoder, SScalableBf** ppSBf) {
   }
   pSBf->bfArray = taosArrayInit(size * 2, POINTER_BYTES);
   if (!pSBf->bfArray) {
-    code = TSDB_CODE_OUT_OF_MEMORY;
+    code = terrno;
     QUERY_CHECK_CODE(code, lino, _error);
   }
 
@@ -246,7 +246,7 @@ int32_t tScalableBfDecode(SDecoder* pDecoder, SScalableBf** ppSBf) {
     QUERY_CHECK_CODE(code, lino, _error);
     void* tmpRes = taosArrayPush(pSBf->bfArray, &pBF);
     if (!tmpRes) {
-      code = TSDB_CODE_OUT_OF_MEMORY;
+      code = terrno;
       QUERY_CHECK_CODE(code, lino, _error);
     }
   }
diff --git a/source/util/src/tworker.c b/source/util/src/tworker.c
index 767fb5ce3c..c067f50399 100644
--- a/source/util/src/tworker.c
+++ b/source/util/src/tworker.c
@@ -178,7 +178,7 @@ int32_t tAutoQWorkerInit(SAutoQWorkerPool *pool) {
   pool->workers = taosArrayInit(2, sizeof(SQueueWorker *));
   if (pool->workers == NULL) {
     taosCloseQset(pool->qset);
-    return terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
   }
 
   (void)taosThreadMutexInit(&pool->mutex, NULL);