enh(tmq): avoid uninitialized memory

include/common/tcommon.h

@@ -37,14 +37,6 @@ enum {
   TMQ_MSG_TYPE__EP_RSP,
 };
 
-enum {
-  STREAM_TRIGGER__AT_ONCE = 1,
-  STREAM_TRIGGER__WINDOW_CLOSE,
-  STREAM_TRIGGER__BY_COUNT,
-  STREAM_TRIGGER__BY_BATCH_COUNT,
-  STREAM_TRIGGER__BY_EVENT_TIME,
-};
-
 typedef enum EStreamType {
   STREAM_NORMAL = 1,
   STREAM_INVERT,

source/client/src/tmq.c

@@ -408,7 +408,7 @@ int32_t tmqCommitInner(tmq_t* tmq, const tmq_topic_vgroup_list_t* offsets, int8_
   pParam->userParam = userParam;
   if (!async) tsem_init(&pParam->rspSem, 0, 0);
 
-  sendInfo = taosMemoryMalloc(sizeof(SMsgSendInfo));
+  sendInfo = taosMemoryCalloc(1, sizeof(SMsgSendInfo));
   if (sendInfo == NULL) goto END;
   sendInfo->msgInfo = (SDataBuf){
       .pData = buf,
@@ -704,7 +704,7 @@ tmq_resp_err_t tmq_subscribe(tmq_t* tmq, const tmq_list_t* topic_list) {
   void* abuf = buf;
   tSerializeSCMSubscribeReq(&abuf, &req);
 
-  SMsgSendInfo* sendInfo = taosMemoryMalloc(sizeof(SMsgSendInfo));
+  SMsgSendInfo* sendInfo = taosMemoryCalloc(1, sizeof(SMsgSendInfo));
   if (sendInfo == NULL) goto FAIL;
 
   SMqSubscribeCbParam param = {
@@ -1008,7 +1008,7 @@ int32_t tmqAskEp(tmq_t* tmq, bool async) {
   pParam->async = async;
   tsem_init(&pParam->rspSem, 0, 0);
 
-  SMsgSendInfo* sendInfo = taosMemoryMalloc(sizeof(SMsgSendInfo));
+  SMsgSendInfo* sendInfo = taosMemoryCalloc(1, sizeof(SMsgSendInfo));
   if (sendInfo == NULL) {
     tsem_destroy(&pParam->rspSem);
     taosMemoryFree(pParam);
@@ -1162,7 +1162,7 @@ int32_t tmqPollImpl(tmq_t* tmq, int64_t timeout) {
       pParam->vgId = pVg->vgId;
       pParam->epoch = tmq->epoch;
 
-      SMsgSendInfo* sendInfo = taosMemoryMalloc(sizeof(SMsgSendInfo));
+      SMsgSendInfo* sendInfo = taosMemoryCalloc(1, sizeof(SMsgSendInfo));
       if (sendInfo == NULL) {
         taosMemoryFree(pReq);
         taosMemoryFree(pParam);

source/dnode/mnode/impl/src/mndScheduler.c

@@ -351,9 +351,15 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
   ASSERT(totLevel <= 2);
   pStream->tasks = taosArrayInit(totLevel, sizeof(void*));
 
-  bool hasExtraSink = false;
-  bool externalTargetDB = strcmp(pStream->sourceDb, pStream->targetDb) != 0;
-  if (totLevel == 2 || externalTargetDB) {
+  bool    hasExtraSink = false;
+  bool    externalTargetDB = strcmp(pStream->sourceDb, pStream->targetDb) != 0;
+  SDbObj* pDbObj = mndAcquireDb(pMnode, pStream->targetDb);
+  ASSERT(pDbObj != NULL);
+  sdbRelease(pSdb, pDbObj);
+
+  bool multiTarget = pDbObj->cfg.numOfVgroups > 1;
+
+  if (totLevel == 2 || externalTargetDB || multiTarget) {
     SArray* taskOneLevel = taosArrayInit(0, sizeof(void*));
     taosArrayPush(pStream->tasks, &taskOneLevel);
     // add extra sink

source/dnode/vnode/src/tq/tq.c

@@ -136,6 +136,7 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
             pReq->subKey);
     return -1;
   }
+
   if (pHandle->consumerId != consumerId) {
     tqError("tmq poll: consumer handle mismatch for consumer %ld in vg %d, subkey %s, handle consumer id %ld",
             consumerId, pTq->pVnode->config.vgId, pReq->subKey, pHandle->consumerId);

source/libs/stream/src/stream.c

@@ -110,9 +110,7 @@ int32_t streamProcessDispatchRsp(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamDisp
     return 0;
   }
   // continue dispatch
-  if (pTask->dispatchType != TASK_DISPATCH__NONE) {
-    streamDispatch(pTask, pMsgCb);
-  }
+  streamDispatch(pTask, pMsgCb);
   return 0;
 }
 

source/libs/stream/src/streamDispatch.c

@@ -182,6 +182,7 @@ FAIL:
 }
 
 int32_t streamDispatch(SStreamTask* pTask, SMsgCb* pMsgCb) {
+  ASSERT(pTask->dispatchType != TASK_DISPATCH__NONE);
 #if 1
   int8_t old =
       atomic_val_compare_exchange_8(&pTask->outputStatus, TASK_OUTPUT_STATUS__NORMAL, TASK_OUTPUT_STATUS__WAIT);