diff --git a/include/common/tglobal.h b/include/common/tglobal.h
index 40f73eb06c003aaaa2966397411f954c77099a1d..cb4426f8a96f662b1d244fa768030a2462e52c25 100644
--- a/include/common/tglobal.h
+++ b/include/common/tglobal.h
@@ -60,8 +60,8 @@ extern int32_t tsNumOfVnodeSyncThreads;
 extern int32_t tsNumOfVnodeRsmaThreads;
 extern int32_t tsNumOfQnodeQueryThreads;
 extern int32_t tsNumOfQnodeFetchThreads;
-extern int32_t tsNumOfSnodeSharedThreads;
-extern int32_t tsNumOfSnodeUniqueThreads;
+extern int32_t tsNumOfSnodeStreamThreads;
+extern int32_t tsNumOfSnodeWriteThreads;
 extern int64_t tsRpcQueueMemoryAllowed;
 
 // monitor
diff --git a/include/dnode/snode/snode.h b/include/dnode/snode/snode.h
index 3d0ef2e052ef20978156b76b1dd7d552391b4a8b..e8c64b07c4f90d064a5a4709568bd0e35bbe8e51 100644
--- a/include/dnode/snode/snode.h
+++ b/include/dnode/snode/snode.h
@@ -68,8 +68,8 @@ int32_t sndGetLoad(SSnode *pSnode, SSnodeLoad *pLoad);
  * @param pMsg The request message
  * @param pRsp The response message
  */
-int32_t sndProcessUMsg(SSnode *pSnode, SRpcMsg *pMsg);
-int32_t sndProcessSMsg(SSnode *pSnode, SRpcMsg *pMsg);
+int32_t sndProcessWriteMsg(SSnode *pSnode, SRpcMsg *pMsg, SRpcMsg *pRsp);
+int32_t sndProcessStreamMsg(SSnode *pSnode, SRpcMsg *pMsg);
 
 #ifdef __cplusplus
 }
diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index f98f81f8c5e634fbd27405151f8b1b2f21bd0c0d..fbb9e04a256cfd115ecbd334f2714c3368de3f46 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -55,8 +55,8 @@ int32_t tsNumOfVnodeSyncThreads = 2;
 int32_t tsNumOfVnodeRsmaThreads = 2;
 int32_t tsNumOfQnodeQueryThreads = 4;
 int32_t tsNumOfQnodeFetchThreads = 1;
-int32_t tsNumOfSnodeSharedThreads = 2;
-int32_t tsNumOfSnodeUniqueThreads = 2;
+int32_t tsNumOfSnodeStreamThreads = 4;
+int32_t tsNumOfSnodeWriteThreads = 1;
 
 // monitor
 bool     tsEnableMonitor = true;
@@ -133,7 +133,7 @@ int32_t  tsDiskCfgNum = 0;
 SDiskCfg tsDiskCfg[TFS_MAX_DISKS] = {0};
 
 // stream scheduler
-bool tsSchedStreamToSnode = true;
+bool tsDeployOnSnode = true;
 
 /*
  * minimum scale for whole system, millisecond by default
@@ -390,13 +390,13 @@ static int32_t taosAddServerCfg(SConfig *pCfg) {
   //  tsNumOfQnodeFetchThreads = TMAX(tsNumOfQnodeFetchThreads, 4);
   //  if (cfgAddInt32(pCfg, "numOfQnodeFetchThreads", tsNumOfQnodeFetchThreads, 1, 1024, 0) != 0) return -1;
 
-  tsNumOfSnodeSharedThreads = tsNumOfCores / 4;
-  tsNumOfSnodeSharedThreads = TRANGE(tsNumOfSnodeSharedThreads, 2, 4);
-  if (cfgAddInt32(pCfg, "numOfSnodeSharedThreads", tsNumOfSnodeSharedThreads, 2, 1024, 0) != 0) return -1;
+  tsNumOfSnodeStreamThreads = tsNumOfCores / 4;
+  tsNumOfSnodeStreamThreads = TRANGE(tsNumOfSnodeStreamThreads, 2, 4);
+  if (cfgAddInt32(pCfg, "numOfSnodeSharedThreads", tsNumOfSnodeStreamThreads, 2, 1024, 0) != 0) return -1;
 
-  tsNumOfSnodeUniqueThreads = tsNumOfCores / 4;
-  tsNumOfSnodeUniqueThreads = TRANGE(tsNumOfSnodeUniqueThreads, 2, 4);
-  if (cfgAddInt32(pCfg, "numOfSnodeUniqueThreads", tsNumOfSnodeUniqueThreads, 2, 1024, 0) != 0) return -1;
+  tsNumOfSnodeWriteThreads = tsNumOfCores / 4;
+  tsNumOfSnodeWriteThreads = TRANGE(tsNumOfSnodeWriteThreads, 2, 4);
+  if (cfgAddInt32(pCfg, "numOfSnodeUniqueThreads", tsNumOfSnodeWriteThreads, 2, 1024, 0) != 0) return -1;
 
   tsRpcQueueMemoryAllowed = tsTotalMemoryKB * 1024 * 0.1;
   tsRpcQueueMemoryAllowed = TRANGE(tsRpcQueueMemoryAllowed, TSDB_MAX_MSG_SIZE * 10LL, TSDB_MAX_MSG_SIZE * 10000LL);
@@ -542,17 +542,17 @@ static int32_t taosUpdateServerCfg(SConfig *pCfg) {
 
   pItem = cfgGetItem(tsCfg, "numOfSnodeSharedThreads");
   if (pItem != NULL && pItem->stype == CFG_STYPE_DEFAULT) {
-    tsNumOfSnodeSharedThreads = numOfCores / 4;
-    tsNumOfSnodeSharedThreads = TRANGE(tsNumOfSnodeSharedThreads, 2, 4);
-    pItem->i32 = tsNumOfSnodeSharedThreads;
+    tsNumOfSnodeStreamThreads = numOfCores / 4;
+    tsNumOfSnodeStreamThreads = TRANGE(tsNumOfSnodeStreamThreads, 2, 4);
+    pItem->i32 = tsNumOfSnodeStreamThreads;
     pItem->stype = stype;
   }
 
   pItem = cfgGetItem(tsCfg, "numOfSnodeUniqueThreads");
   if (pItem != NULL && pItem->stype == CFG_STYPE_DEFAULT) {
-    tsNumOfSnodeUniqueThreads = numOfCores / 4;
-    tsNumOfSnodeUniqueThreads = TRANGE(tsNumOfSnodeUniqueThreads, 2, 4);
-    pItem->i32 = tsNumOfSnodeUniqueThreads;
+    tsNumOfSnodeWriteThreads = numOfCores / 4;
+    tsNumOfSnodeWriteThreads = TRANGE(tsNumOfSnodeWriteThreads, 2, 4);
+    pItem->i32 = tsNumOfSnodeWriteThreads;
     pItem->stype = stype;
   }
 
@@ -696,8 +696,8 @@ static int32_t taosSetServerCfg(SConfig *pCfg) {
   tsNumOfVnodeRsmaThreads = cfgGetItem(pCfg, "numOfVnodeRsmaThreads")->i32;
   tsNumOfQnodeQueryThreads = cfgGetItem(pCfg, "numOfQnodeQueryThreads")->i32;
   //  tsNumOfQnodeFetchThreads = cfgGetItem(pCfg, "numOfQnodeFetchThreads")->i32;
-  tsNumOfSnodeSharedThreads = cfgGetItem(pCfg, "numOfSnodeSharedThreads")->i32;
-  tsNumOfSnodeUniqueThreads = cfgGetItem(pCfg, "numOfSnodeUniqueThreads")->i32;
+  tsNumOfSnodeStreamThreads = cfgGetItem(pCfg, "numOfSnodeSharedThreads")->i32;
+  tsNumOfSnodeWriteThreads = cfgGetItem(pCfg, "numOfSnodeUniqueThreads")->i32;
   tsRpcQueueMemoryAllowed = cfgGetItem(pCfg, "rpcQueueMemoryAllowed")->i64;
 
   tsEnableMonitor = cfgGetItem(pCfg, "monitor")->bval;
@@ -946,9 +946,9 @@ int32_t taosSetCfg(SConfig *pCfg, char *name) {
                 tsNumOfQnodeFetchThreads = cfgGetItem(pCfg, "numOfQnodeFetchThreads")->i32;
         */
       } else if (strcasecmp("numOfSnodeSharedThreads", name) == 0) {
-        tsNumOfSnodeSharedThreads = cfgGetItem(pCfg, "numOfSnodeSharedThreads")->i32;
+        tsNumOfSnodeStreamThreads = cfgGetItem(pCfg, "numOfSnodeSharedThreads")->i32;
       } else if (strcasecmp("numOfSnodeUniqueThreads", name) == 0) {
-        tsNumOfSnodeUniqueThreads = cfgGetItem(pCfg, "numOfSnodeUniqueThreads")->i32;
+        tsNumOfSnodeWriteThreads = cfgGetItem(pCfg, "numOfSnodeUniqueThreads")->i32;
       } else if (strcasecmp("numOfLogLines", name) == 0) {
         tsNumOfLogLines = cfgGetItem(pCfg, "numOfLogLines")->i32;
       }
diff --git a/source/dnode/mgmt/mgmt_snode/inc/smInt.h b/source/dnode/mgmt/mgmt_snode/inc/smInt.h
index 4efe1c997b578a3397f1ab0fbcc39b612af123a8..9d519e88f02aaa44cfc5c1804e9c479019975f04 100644
--- a/source/dnode/mgmt/mgmt_snode/inc/smInt.h
+++ b/source/dnode/mgmt/mgmt_snode/inc/smInt.h
@@ -30,9 +30,9 @@ typedef struct SSnodeMgmt {
   SMsgCb        msgCb;
   const char   *path;
   const char   *name;
-  int8_t        uniqueWorkerInUse;
-  SArray       *uniqueWorkers;  // SArray<SMultiWorker*>
-  SSingleWorker sharedWorker;
+  int8_t        writeWorkerInUse;
+  SArray       *writeWroker;  // SArray<SMultiWorker*>
+  SSingleWorker streamWorker;
 } SSnodeMgmt;
 
 // smHandle.c
@@ -43,13 +43,14 @@ int32_t smProcessDropReq(const SMgmtInputOpt *pInput, SRpcMsg *pMsg);
 // smWorker.c
 int32_t smStartWorker(SSnodeMgmt *pMgmt);
 void    smStopWorker(SSnodeMgmt *pMgmt);
+int32_t smPutMsgToQueue(SSnodeMgmt *pMgmt, EQueueType qtype, SRpcMsg *pMsg);
 int32_t smPutNodeMsgToMgmtQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg);
-int32_t smPutNodeMsgToUniqueQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg);
-int32_t smPutNodeMsgToSharedQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg);
-int32_t smPutNodeMsgToExecQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg);
+int32_t smPutNodeMsgToWriteQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg);
+int32_t smPutNodeMsgToStreamQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg);
+void    sndEnqueueStreamDispatch(SSnode *pSnode, SRpcMsg *pMsg);
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif /*_TD_DND_SNODE_INT_H_*/
\ No newline at end of file
+#endif /*_TD_DND_SNODE_INT_H_*/
diff --git a/source/dnode/mgmt/mgmt_snode/src/smHandle.c b/source/dnode/mgmt/mgmt_snode/src/smHandle.c
index 65c96767ab33edf6f1ddcb04aa76d276dc17e92f..1ce7f1a84b106953467a4c9ab132bce95a95448d 100644
--- a/source/dnode/mgmt/mgmt_snode/src/smHandle.c
+++ b/source/dnode/mgmt/mgmt_snode/src/smHandle.c
@@ -69,13 +69,13 @@ SArray *smGetMsgHandles() {
 
   if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DEPLOY, smPutNodeMsgToMgmtQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DROP, smPutNodeMsgToMgmtQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RUN, smPutNodeMsgToSharedQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DISPATCH, smPutNodeMsgToSharedQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DISPATCH_RSP, smPutNodeMsgToSharedQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RECOVER, smPutNodeMsgToSharedQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RECOVER_RSP, smPutNodeMsgToSharedQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_STREAM_RETRIEVE, smPutNodeMsgToSharedQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_STREAM_RETRIEVE_RSP, smPutNodeMsgToSharedQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RUN, smPutNodeMsgToStreamQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DISPATCH, smPutNodeMsgToStreamQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DISPATCH_RSP, smPutNodeMsgToStreamQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RECOVER, smPutNodeMsgToStreamQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RECOVER_RSP, smPutNodeMsgToStreamQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_RETRIEVE, smPutNodeMsgToStreamQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_RETRIEVE_RSP, smPutNodeMsgToStreamQueue, 1) == NULL) goto _OVER;
 
   code = 0;
 _OVER:
diff --git a/source/dnode/mgmt/mgmt_snode/src/smInt.c b/source/dnode/mgmt/mgmt_snode/src/smInt.c
index 971a6ac4c78f57b4c19c79e08fbc1190169e4bf9..28097311ac3530788d83c965ed4918d4621effc4 100644
--- a/source/dnode/mgmt/mgmt_snode/src/smInt.c
+++ b/source/dnode/mgmt/mgmt_snode/src/smInt.c
@@ -45,6 +45,7 @@ int32_t smOpen(SMgmtInputOpt *pInput, SMgmtOutputOpt *pOutput) {
   pMgmt->name = pInput->name;
   pMgmt->msgCb = pInput->msgCb;
   pMgmt->msgCb.mgmt = pMgmt;
+  pMgmt->msgCb.putToQueueFp = (PutToQueueFp)smPutMsgToQueue;
 
   SSnodeOpt option = {0};
   smInitOption(pMgmt, &option);
diff --git a/source/dnode/mgmt/mgmt_snode/src/smWorker.c b/source/dnode/mgmt/mgmt_snode/src/smWorker.c
index ad56d57f69472f5101c7149118fbb95c4a05b5f2..6a705275412211ae10a9f064fde247a20a011d33 100644
--- a/source/dnode/mgmt/mgmt_snode/src/smWorker.c
+++ b/source/dnode/mgmt/mgmt_snode/src/smWorker.c
@@ -26,18 +26,24 @@ static inline void smSendRsp(SRpcMsg *pMsg, int32_t code) {
   tmsgSendRsp(&rsp);
 }
 
-static void smProcessUniqueQueue(SQueueInfo *pInfo, STaosQall *qall, int32_t numOfMsgs) {
+static void smProcessWriteQueue(SQueueInfo *pInfo, STaosQall *qall, int32_t numOfMsgs) {
   SSnodeMgmt *pMgmt = pInfo->ahandle;
 
   for (int32_t i = 0; i < numOfMsgs; i++) {
     SRpcMsg *pMsg = NULL;
     taosGetQitem(qall, (void **)&pMsg);
-
-    dTrace("msg:%p, get from snode-unique queue", pMsg);
-    if (sndProcessUMsg(pMgmt->pSnode, pMsg) < 0) {
-      ASSERT(0);
+    const STraceId *trace = &pMsg->info.traceId;
+
+    dTrace("msg:%p, get from snode-write queue", pMsg);
+    int32_t code = sndProcessWriteMsg(pMgmt->pSnode, pMsg, NULL);
+    if (code < 0) {
+      dGError("snd, msg:%p failed to process write since %s", pMsg, terrstr(code));
+      if (pMsg->info.handle != NULL) {
+        tmsgSendRsp(pMsg);
+      }
+    } else {
+      smSendRsp(pMsg, 0);
     }
-    smSendRsp(pMsg, 0);
 
     dTrace("msg:%p, is freed", pMsg);
     rpcFreeCont(pMsg->pCont);
@@ -45,13 +51,15 @@ static void smProcessUniqueQueue(SQueueInfo *pInfo, STaosQall *qall, int32_t num
   }
 }
 
-static void smProcessSharedQueue(SQueueInfo *pInfo, SRpcMsg *pMsg) {
-  SSnodeMgmt *pMgmt = pInfo->ahandle;
+static void smProcessStreamQueue(SQueueInfo *pInfo, SRpcMsg *pMsg) {
+  SSnodeMgmt     *pMgmt = pInfo->ahandle;
+  const STraceId *trace = &pMsg->info.traceId;
 
-  dTrace("msg:%p, get from snode-shared queue", pMsg);
-  if (sndProcessSMsg(pMgmt->pSnode, pMsg) < 0) {
+  dTrace("msg:%p, get from snode-stream queue", pMsg);
+  int32_t code = sndProcessStreamMsg(pMgmt->pSnode, pMsg);
+  if (code < 0) {
+    dGError("snd, msg:%p failed to process stream since %s", pMsg, terrstr(code));
     smSendRsp(pMsg, terrno);
-    ASSERT(0);
   }
 
   dTrace("msg:%p, is freed", pMsg);
@@ -60,44 +68,44 @@ static void smProcessSharedQueue(SQueueInfo *pInfo, SRpcMsg *pMsg) {
 }
 
 int32_t smStartWorker(SSnodeMgmt *pMgmt) {
-  pMgmt->uniqueWorkers = taosArrayInit(0, sizeof(SMultiWorker *));
-  if (pMgmt->uniqueWorkers == NULL) {
+  pMgmt->writeWroker = taosArrayInit(0, sizeof(SMultiWorker *));
+  if (pMgmt->writeWroker == NULL) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     return -1;
   }
 
-  for (int32_t i = 0; i < tsNumOfSnodeUniqueThreads; i++) {
-    SMultiWorker *pUniqueWorker = taosMemoryMalloc(sizeof(SMultiWorker));
-    if (pUniqueWorker == NULL) {
+  for (int32_t i = 0; i < tsNumOfSnodeWriteThreads; i++) {
+    SMultiWorker *pWriteWorker = taosMemoryMalloc(sizeof(SMultiWorker));
+    if (pWriteWorker == NULL) {
       terrno = TSDB_CODE_OUT_OF_MEMORY;
       return -1;
     }
 
     SMultiWorkerCfg cfg = {
         .max = 1,
-        .name = "snode-unique",
-        .fp = smProcessUniqueQueue,
+        .name = "snode-write",
+        .fp = smProcessWriteQueue,
         .param = pMgmt,
     };
-    if (tMultiWorkerInit(pUniqueWorker, &cfg) != 0) {
+    if (tMultiWorkerInit(pWriteWorker, &cfg) != 0) {
       dError("failed to start snode-unique worker since %s", terrstr());
       return -1;
     }
-    if (taosArrayPush(pMgmt->uniqueWorkers, &pUniqueWorker) == NULL) {
+    if (taosArrayPush(pMgmt->writeWroker, &pWriteWorker) == NULL) {
       terrno = TSDB_CODE_OUT_OF_MEMORY;
       return -1;
     }
   }
 
   SSingleWorkerCfg cfg = {
-      .min = tsNumOfSnodeSharedThreads,
-      .max = tsNumOfSnodeSharedThreads,
-      .name = "snode-shared",
-      .fp = (FItem)smProcessSharedQueue,
+      .min = tsNumOfSnodeStreamThreads,
+      .max = tsNumOfSnodeStreamThreads,
+      .name = "snode-stream",
+      .fp = (FItem)smProcessStreamQueue,
       .param = pMgmt,
   };
 
-  if (tSingleWorkerInit(&pMgmt->sharedWorker, &cfg)) {
+  if (tSingleWorkerInit(&pMgmt->streamWorker, &cfg)) {
     dError("failed to start snode shared-worker since %s", terrstr());
     return -1;
   }
@@ -107,30 +115,50 @@ int32_t smStartWorker(SSnodeMgmt *pMgmt) {
 }
 
 void smStopWorker(SSnodeMgmt *pMgmt) {
-  for (int32_t i = 0; i < taosArrayGetSize(pMgmt->uniqueWorkers); i++) {
-    SMultiWorker *pWorker = taosArrayGetP(pMgmt->uniqueWorkers, i);
+  for (int32_t i = 0; i < taosArrayGetSize(pMgmt->writeWroker); i++) {
+    SMultiWorker *pWorker = taosArrayGetP(pMgmt->writeWroker, i);
     tMultiWorkerCleanup(pWorker);
   }
-  taosArrayDestroy(pMgmt->uniqueWorkers);
-  tSingleWorkerCleanup(&pMgmt->sharedWorker);
+  taosArrayDestroy(pMgmt->writeWroker);
+  tSingleWorkerCleanup(&pMgmt->streamWorker);
   dDebug("snode workers are closed");
 }
 
-static FORCE_INLINE int32_t smGetSWIdFromMsg(SRpcMsg *pMsg) {
-  SMsgHead *pHead = pMsg->pCont;
-  pHead->vgId = htonl(pHead->vgId);
-  return pHead->vgId % tsNumOfSnodeUniqueThreads;
-}
+int32_t smPutMsgToQueue(SSnodeMgmt *pMgmt, EQueueType qtype, SRpcMsg *pRpc) {
+  SRpcMsg *pMsg = taosAllocateQitem(sizeof(SRpcMsg), RPC_QITEM);
+  if (pMsg == NULL) {
+    rpcFreeCont(pRpc->pCont);
+    pRpc->pCont = NULL;
+    return -1;
+  }
+
+  SSnode *pSnode = pMgmt->pSnode;
+  if (pSnode == NULL) {
+    dError("snode: msg:%p failed to put into vnode queue since %s, type:%s qtype:%d", pMsg, terrstr(),
+           TMSG_INFO(pMsg->msgType), qtype);
+    return -1;
+  }
 
-static FORCE_INLINE int32_t smGetSWTypeFromMsg(SRpcMsg *pMsg) {
-  /*SMsgHead *pHead = pMsg->pCont;*/
-  /*pHead->workerType = htonl(pHead->workerType);*/
-  /*return pHead->workerType;*/
+  SMsgHead *pHead = pRpc->pCont;
+  pHead->contLen = htonl(pHead->contLen);
+  pHead->vgId = SNODE_HANDLE;
+  memcpy(pMsg, pRpc, sizeof(SRpcMsg));
+
+  switch (qtype) {
+    case STREAM_QUEUE:
+      smPutNodeMsgToStreamQueue(pMgmt, pMsg);
+      break;
+    case WRITE_QUEUE:
+      smPutNodeMsgToWriteQueue(pMgmt, pMsg);
+      break;
+    default:
+      ASSERT(0);
+  }
   return 0;
 }
 
 int32_t smPutNodeMsgToMgmtQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg) {
-  SMultiWorker *pWorker = taosArrayGetP(pMgmt->uniqueWorkers, 0);
+  SMultiWorker *pWorker = taosArrayGetP(pMgmt->writeWroker, 0);
   if (pWorker == NULL) {
     terrno = TSDB_CODE_INVALID_MSG;
     return -1;
@@ -141,9 +169,8 @@ int32_t smPutNodeMsgToMgmtQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg) {
   return 0;
 }
 
-int32_t smPutNodeMsgToUniqueQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg) {
-  int32_t       index = smGetSWIdFromMsg(pMsg);
-  SMultiWorker *pWorker = taosArrayGetP(pMgmt->uniqueWorkers, index);
+int32_t smPutNodeMsgToWriteQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg) {
+  SMultiWorker *pWorker = taosArrayGetP(pMgmt->writeWroker, 0);
   if (pWorker == NULL) {
     terrno = TSDB_CODE_INVALID_MSG;
     return -1;
@@ -154,19 +181,14 @@ int32_t smPutNodeMsgToUniqueQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg) {
   return 0;
 }
 
-int32_t smPutNodeMsgToSharedQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg) {
-  SSingleWorker *pWorker = &pMgmt->sharedWorker;
+int32_t smPutNodeMsgToStreamQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg) {
+  SSingleWorker *pWorker = &pMgmt->streamWorker;
 
   dTrace("msg:%p, put into worker %s", pMsg, pWorker->name);
-  taosWriteQitem(pWorker->queue, pMsg);
-  return 0;
-}
-
-int32_t smPutNodeMsgToExecQueue(SSnodeMgmt *pMgmt, SRpcMsg *pMsg) {
-  int32_t workerType = smGetSWTypeFromMsg(pMsg);
-  if (workerType == SND_WORKER_TYPE__SHARED) {
-    return smPutNodeMsgToSharedQueue(pMgmt, pMsg);
+  if (pMsg->msgType == TDMT_STREAM_TASK_DISPATCH) {
+    sndEnqueueStreamDispatch(pMgmt->pSnode, pMsg);
   } else {
-    return smPutNodeMsgToUniqueQueue(pMgmt, pMsg);
+    taosWriteQitem(pWorker->queue, pMsg);
   }
+  return 0;
 }
diff --git a/source/dnode/mnode/impl/src/mndScheduler.c b/source/dnode/mnode/impl/src/mndScheduler.c
index 0eaff6eafe7527e9a071ba990ea2a66b75150087..5ee4925a96d4712c54f9fe2e056f1b3e84c6ef24 100644
--- a/source/dnode/mnode/impl/src/mndScheduler.c
+++ b/source/dnode/mnode/impl/src/mndScheduler.c
@@ -32,7 +32,7 @@
 #include "tname.h"
 #include "tuuid.h"
 
-extern bool tsSchedStreamToSnode;
+extern bool tsDeployOnSnode;
 
 static int32_t mndAddTaskToTaskSet(SArray* pArray, SStreamTask* pTask) {
   int32_t childId = taosArrayGetSize(pArray);
@@ -190,7 +190,7 @@ int32_t mndAssignTaskToSnode(SMnode* pMnode, SStreamTask* pTask, SSubplan* plan,
   pTask->nodeId = SNODE_HANDLE;
   pTask->epSet = mndAcquireEpFromSnode(pMnode, pSnode);
 
-  plan->execNode.nodeId = 0;
+  plan->execNode.nodeId = SNODE_HANDLE;
   plan->execNode.epSet = pTask->epSet;
 
   if (qSubPlanToString(plan, &pTask->exec.qmsg, &msgLen) < 0) {
@@ -373,7 +373,7 @@ int32_t mndScheduleStream(SMnode* pMnode, SStreamObj* pStream) {
         return -1;
       }
 
-      if (tsSchedStreamToSnode) {
+      if (tsDeployOnSnode) {
         SSnodeObj* pSnode = mndSchedFetchOneSnode(pMnode);
         if (pSnode == NULL) {
           SVgObj* pVgroup = mndSchedFetchOneVg(pMnode, pStream->sourceDbUid);
diff --git a/source/dnode/snode/inc/sndInt.h b/source/dnode/snode/inc/sndInt.h
index 5ee55079810b34ea63e8ac416ff696949787a334..3fcee862a102acd202be4848af800f16a8ef3b66 100644
--- a/source/dnode/snode/inc/sndInt.h
+++ b/source/dnode/snode/inc/sndInt.h
@@ -31,7 +31,9 @@ extern "C" {
 #endif
 
 typedef struct SSnode {
-  SMsgCb msgCb;
+  char*        path;
+  SStreamMeta* pMeta;
+  SMsgCb       msgCb;
 } SSnode;
 
 #if 0
diff --git a/source/dnode/snode/src/snode.c b/source/dnode/snode/src/snode.c
index cda4663285ec560c1ea635a56e242d62efa45d41..719e2d8fad5fc595dea5554be07988f06330b58a 100644
--- a/source/dnode/snode/src/snode.c
+++ b/source/dnode/snode/src/snode.c
@@ -15,197 +15,197 @@
 
 #include "executor.h"
 #include "sndInt.h"
+#include "tstream.h"
 #include "tuuid.h"
-/*SSnode *sndOpen(const char *path, const SSnodeOpt *pOption) { return NULL; }*/
-/*void    sndClose(SSnode *pSnode) {}*/
-int32_t sndProcessUMsg(SSnode *pSnode, SRpcMsg *pMsg) { return 0; }
-int32_t sndProcessSMsg(SSnode *pSnode, SRpcMsg *pMsg) { return 0; }
+
+void sndEnqueueStreamDispatch(SSnode *pSnode, SRpcMsg *pMsg) {
+  char   *msgStr = pMsg->pCont;
+  char   *msgBody = POINTER_SHIFT(msgStr, sizeof(SMsgHead));
+  int32_t msgLen = pMsg->contLen - sizeof(SMsgHead);
+  int32_t code = 0;
+
+  SStreamDispatchReq req;
+  SDecoder           decoder;
+  tDecoderInit(&decoder, msgBody, msgLen);
+  if (tDecodeStreamDispatchReq(&decoder, &req) < 0) {
+    code = TSDB_CODE_MSG_DECODE_ERROR;
+    tDecoderClear(&decoder);
+    goto FAIL;
+  }
+  tDecoderClear(&decoder);
+
+  int32_t taskId = req.taskId;
+
+  SStreamTask *pTask = streamMetaGetTask(pSnode->pMeta, taskId);
+  if (pTask) {
+    SRpcMsg rsp = {
+        .info = pMsg->info,
+        .code = 0,
+    };
+    streamProcessDispatchReq(pTask, &req, &rsp, false);
+    rpcFreeCont(pMsg->pCont);
+    taosFreeQitem(pMsg);
+    return;
+  }
+
+FAIL:
+  if (pMsg->info.handle == NULL) return;
+  SRpcMsg rsp = {
+      .code = code,
+      .info = pMsg->info,
+  };
+  tmsgSendRsp(&rsp);
+  rpcFreeCont(pMsg->pCont);
+  taosFreeQitem(pMsg);
+}
+
+int32_t sndExpandTask(SSnode *pSnode, SStreamTask *pTask, int64_t ver) {
+  ASSERT(pTask->taskLevel == TASK_LEVEL__AGG);
+  ASSERT(taosArrayGetSize(pTask->childEpInfo) != 0);
+
+  pTask->schedStatus = TASK_SCHED_STATUS__INACTIVE;
+  pTask->inputQueue = streamQueueOpen();
+  pTask->outputQueue = streamQueueOpen();
+
+  if (pTask->inputQueue == NULL || pTask->outputQueue == NULL) {
+    return -1;
+  }
+
+  pTask->inputStatus = TASK_INPUT_STATUS__NORMAL;
+  pTask->outputStatus = TASK_OUTPUT_STATUS__NORMAL;
+
+  pTask->pMsgCb = &pSnode->msgCb;
+
+  pTask->startVer = ver;
+
+  pTask->pState = streamStateOpen(pSnode->path, pTask, false, -1, -1);
+  if (pTask->pState == NULL) {
+    return -1;
+  }
+
+  SReadHandle mgHandle = {
+      .vnode = NULL,
+      .numOfVgroups = (int32_t)taosArrayGetSize(pTask->childEpInfo),
+      .pStateBackend = pTask->pState,
+  };
+  pTask->exec.executor = qCreateStreamExecTaskInfo(pTask->exec.qmsg, &mgHandle);
+  ASSERT(pTask->exec.executor);
+
+  return 0;
+}
 
 SSnode *sndOpen(const char *path, const SSnodeOpt *pOption) {
   SSnode *pSnode = taosMemoryCalloc(1, sizeof(SSnode));
   if (pSnode == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
     return NULL;
   }
+  pSnode->path = strdup(path);
+  if (pSnode->path == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    goto FAIL;
+  }
   pSnode->msgCb = pOption->msgCb;
-#if 0
-  pSnode->pMeta = sndMetaNew();
+
+  pSnode->pMeta = streamMetaOpen(path, pSnode, (FTaskExpand *)sndExpandTask, SNODE_HANDLE);
   if (pSnode->pMeta == NULL) {
-    taosMemoryFree(pSnode);
-    return NULL;
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    goto FAIL;
   }
-#endif
+
   return pSnode;
+
+FAIL:
+  taosMemoryFree(pSnode->path);
+  taosMemoryFree(pSnode);
+  return NULL;
 }
 
 void sndClose(SSnode *pSnode) {
-  /*sndMetaDelete(pSnode->pMeta);*/
+  streamMetaClose(pSnode->pMeta);
+  taosMemoryFree(pSnode->path);
   taosMemoryFree(pSnode);
 }
 
 int32_t sndGetLoad(SSnode *pSnode, SSnodeLoad *pLoad) { return 0; }
 
-#if 0
-SStreamMeta *sndMetaNew() {
-  SStreamMeta *pMeta = taosMemoryCalloc(1, sizeof(SStreamMeta));
-  if (pMeta == NULL) {
-    return NULL;
-  }
-  pMeta->pHash = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_NO_LOCK);
-  if (pMeta->pHash == NULL) {
-    taosMemoryFree(pMeta);
-    return NULL;
-  }
-  return pMeta;
-}
-
-void sndMetaDelete(SStreamMeta *pMeta) {
-  taosHashCleanup(pMeta->pHash);
-  taosMemoryFree(pMeta);
-}
-
-int32_t sndMetaDeployTask(SStreamMeta *pMeta, SStreamTask *pTask) {
-  pTask->exec.executor = qCreateStreamExecTaskInfo(pTask->exec.qmsg, NULL);
-  return taosHashPut(pMeta->pHash, &pTask->taskId, sizeof(int32_t), pTask, sizeof(void *));
-}
-
-SStreamTask *sndMetaGetTask(SStreamMeta *pMeta, int32_t taskId) {
-  return taosHashGet(pMeta->pHash, &taskId, sizeof(int32_t));
-}
-
-int32_t sndMetaRemoveTask(SStreamMeta *pMeta, int32_t taskId) {
-  SStreamTask *pTask = taosHashGet(pMeta->pHash, &taskId, sizeof(int32_t));
-  if (pTask == NULL) {
-    return -1;
-  }
-  taosMemoryFree(pTask->exec.qmsg);
-  // TODO:free executor
-  taosMemoryFree(pTask);
-  return taosHashRemove(pMeta->pHash, &taskId, sizeof(int32_t));
-}
-
-static int32_t sndProcessTaskDeployReq(SSnode *pNode, SRpcMsg *pMsg) {
-  SStreamMeta *pMeta = pNode->pMeta;
-  char        *msg = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
-  int32_t      msgLen = pMsg->contLen - sizeof(SMsgHead);
+int32_t sndProcessTaskDeployReq(SSnode *pSnode, char *msg, int32_t msgLen) {
+  int32_t code;
 
+  // 1.deserialize msg and build task
   SStreamTask *pTask = taosMemoryCalloc(1, sizeof(SStreamTask));
   if (pTask == NULL) {
     return -1;
   }
   SDecoder decoder;
   tDecoderInit(&decoder, (uint8_t *)msg, msgLen);
-  if (tDecodeSStreamTask(&decoder, pTask) < 0) {
-    ASSERT(0);
+  code = tDecodeSStreamTask(&decoder, pTask);
+  if (code < 0) {
+    tDecoderClear(&decoder);
+    taosMemoryFree(pTask);
+    return -1;
   }
   tDecoderClear(&decoder);
 
-  pTask->execStatus = TASK_EXEC_STATUS__IDLE;
+  ASSERT(pTask->taskLevel == TASK_LEVEL__AGG);
 
-  pTask->inputQueue = streamQueueOpen();
-  pTask->outputQueue = streamQueueOpen();
-  pTask->inputStatus = TASK_INPUT_STATUS__NORMAL;
-  pTask->outputStatus = TASK_INPUT_STATUS__NORMAL;
-
-  if (pTask->inputQueue == NULL || pTask->outputQueue == NULL) goto FAIL;
-
-  pTask->pMsgCb = &pNode->msgCb;
-
-  pTask->exec.executor = qCreateStreamExecTaskInfo(pTask->exec.qmsg, NULL);
-  ASSERT(pTask->exec.executor);
-
-  streamSetupTrigger(pTask);
-
-  qInfo("deploy stream: stream id %" PRId64 " task id %d child id %d on snode", pTask->streamId, pTask->taskId,
-        pTask->selfChildId);
+  // 2.save task
+  code = streamMetaAddTask(pSnode->pMeta, -1, pTask);
+  if (code < 0) {
+    return -1;
+  }
 
-  taosHashPut(pMeta->pHash, &pTask->taskId, sizeof(int32_t), &pTask, sizeof(void *));
+  // 3.go through recover steps to fill history
+  if (pTask->fillHistory) {
+    streamSetParamForRecover(pTask);
+    streamAggRecoverPrepare(pTask);
+  }
 
   return 0;
+}
 
-FAIL:
-  if (pTask->inputQueue) streamQueueClose(pTask->inputQueue);
-  if (pTask->outputQueue) streamQueueClose(pTask->outputQueue);
-  if (pTask) taosMemoryFree(pTask);
-  return -1;
+int32_t sndProcessTaskDropReq(SSnode *pSnode, char *msg, int32_t msgLen) {
+  SVDropStreamTaskReq *pReq = (SVDropStreamTaskReq *)msg;
+  return streamMetaRemoveTask(pSnode->pMeta, pReq->taskId);
 }
 
-static int32_t sndProcessTaskRunReq(SSnode *pNode, SRpcMsg *pMsg) {
-  SStreamMeta       *pMeta = pNode->pMeta;
+int32_t sndProcessTaskRunReq(SSnode *pSnode, SRpcMsg *pMsg) {
   SStreamTaskRunReq *pReq = pMsg->pCont;
   int32_t            taskId = pReq->taskId;
-  SStreamTask       *pTask = *(SStreamTask **)taosHashGet(pMeta->pHash, &taskId, sizeof(int32_t));
-  streamProcessRunReq(pTask);
-  return 0;
+  SStreamTask       *pTask = streamMetaGetTask(pSnode->pMeta, taskId);
+  if (pTask) {
+    streamProcessRunReq(pTask);
+    return 0;
+  } else {
+    return -1;
+  }
 }
 
-static int32_t sndProcessTaskDispatchReq(SSnode *pNode, SRpcMsg *pMsg) {
-  SStreamMeta *pMeta = pNode->pMeta;
-
-  char   *msgStr = pMsg->pCont;
-  char   *msgBody = POINTER_SHIFT(msgStr, sizeof(SMsgHead));
-  int32_t msgLen = pMsg->contLen - sizeof(SMsgHead);
-
+int32_t sndProcessTaskDispatchReq(SSnode *pSnode, SRpcMsg *pMsg, bool exec) {
+  char              *msgStr = pMsg->pCont;
+  char              *msgBody = POINTER_SHIFT(msgStr, sizeof(SMsgHead));
+  int32_t            msgLen = pMsg->contLen - sizeof(SMsgHead);
   SStreamDispatchReq req;
   SDecoder           decoder;
-  tDecoderInit(&decoder, msgBody, msgLen);
+  tDecoderInit(&decoder, (uint8_t *)msgBody, msgLen);
   tDecodeStreamDispatchReq(&decoder, &req);
-  int32_t      taskId = req.taskId;
-  SStreamTask *pTask = *(SStreamTask **)taosHashGet(pMeta->pHash, &taskId, sizeof(int32_t));
-  SRpcMsg      rsp = {
-           .info = pMsg->info,
-           .code = 0,
-  };
-  streamProcessDispatchReq(pTask, &req, &rsp, true);
-  return 0;
-}
-
-static int32_t sndProcessTaskRecoverReq(SSnode *pNode, SRpcMsg *pMsg) {
-  SStreamMeta *pMeta = pNode->pMeta;
-
-  SStreamTaskRecoverReq *pReq = pMsg->pCont;
-  int32_t                taskId = pReq->taskId;
-  SStreamTask           *pTask = *(SStreamTask **)taosHashGet(pMeta->pHash, &taskId, sizeof(int32_t));
-  streamProcessRecoverReq(pTask, pReq, pMsg);
-  return 0;
-}
-
-static int32_t sndProcessTaskDispatchRsp(SSnode *pNode, SRpcMsg *pMsg) {
-  SStreamMeta *pMeta = pNode->pMeta;
-
-  SStreamDispatchRsp *pRsp = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
-  int32_t             taskId = pRsp->taskId;
-  SStreamTask        *pTask = *(SStreamTask **)taosHashGet(pMeta->pHash, &taskId, sizeof(int32_t));
-  streamProcessDispatchRsp(pTask, pRsp);
-  return 0;
-}
-
-static int32_t sndProcessTaskRecoverRsp(SSnode *pNode, SRpcMsg *pMsg) {
-  SStreamMeta *pMeta = pNode->pMeta;
-
-  SStreamTaskRecoverRsp *pRsp = pMsg->pCont;
-  int32_t                taskId = pRsp->rspTaskId;
-  SStreamTask           *pTask = *(SStreamTask **)taosHashGet(pMeta->pHash, &taskId, sizeof(int32_t));
-  streamProcessRecoverRsp(pTask, pRsp);
-  return 0;
-}
-
-static int32_t sndProcessTaskDropReq(SSnode *pNode, SRpcMsg *pMsg) {
-  SStreamMeta *pMeta = pNode->pMeta;
-
-  char                *msg = pMsg->pCont;
-  int32_t              msgLen = pMsg->contLen;
-  SVDropStreamTaskReq *pReq = (SVDropStreamTaskReq *)msg;
-  int32_t              code = taosHashRemove(pMeta->pHash, &pReq->taskId, sizeof(int32_t));
-  ASSERT(code == 0);
-  if (code == 0) {
-    // sendrsp
+  int32_t taskId = req.taskId;
+
+  SStreamTask *pTask = streamMetaGetTask(pSnode->pMeta, taskId);
+  if (pTask) {
+    SRpcMsg rsp = {
+        .info = pMsg->info,
+        .code = 0,
+    };
+    streamProcessDispatchReq(pTask, &req, &rsp, exec);
+    return 0;
+  } else {
+    return -1;
   }
-  return code;
+  return 0;
 }
 
-static int32_t sndProcessTaskRetrieveReq(SSnode *pNode, SRpcMsg *pMsg) {
-  SStreamMeta *pMeta = pNode->pMeta;
-
+int32_t sndProcessTaskRetrieveReq(SSnode *pSnode, SRpcMsg *pMsg) {
   char              *msgStr = pMsg->pCont;
   char              *msgBody = POINTER_SHIFT(msgStr, sizeof(SMsgHead));
   int32_t            msgLen = pMsg->contLen - sizeof(SMsgHead);
@@ -213,53 +213,64 @@ static int32_t sndProcessTaskRetrieveReq(SSnode *pNode, SRpcMsg *pMsg) {
   SDecoder           decoder;
   tDecoderInit(&decoder, msgBody, msgLen);
   tDecodeStreamRetrieveReq(&decoder, &req);
+  tDecoderClear(&decoder);
   int32_t      taskId = req.dstTaskId;
-  SStreamTask *pTask = *(SStreamTask **)taosHashGet(pMeta->pHash, &taskId, sizeof(int32_t));
-  if (atomic_load_8(&pTask->taskStatus) != TASK_STATUS__NORMAL) {
+  SStreamTask *pTask = streamMetaGetTask(pSnode->pMeta, taskId);
+  if (pTask) {
+    SRpcMsg rsp = {
+        .info = pMsg->info,
+        .code = 0,
+    };
+    streamProcessRetrieveReq(pTask, &req, &rsp);
+    tDeleteStreamRetrieveReq(&req);
     return 0;
+  } else {
+    return -1;
+  }
+}
+
+int32_t sndProcessTaskDispatchRsp(SSnode *pSnode, SRpcMsg *pMsg) {
+  SStreamDispatchRsp *pRsp = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
+  int32_t             taskId = pRsp->taskId;
+  SStreamTask        *pTask = streamMetaGetTask(pSnode->pMeta, taskId);
+  if (pTask) {
+    streamProcessDispatchRsp(pTask, pRsp);
+    return 0;
+  } else {
+    return -1;
   }
-  SRpcMsg rsp = {
-      .info = pMsg->info,
-      .code = 0,
-  };
-  streamProcessRetrieveReq(pTask, &req, &rsp);
   return 0;
 }
 
-static int32_t sndProcessTaskRetrieveRsp(SSnode *pNode, SRpcMsg *pMsg) {
+int32_t sndProcessTaskRetrieveRsp(SSnode *pSnode, SRpcMsg *pMsg) {
   //
   return 0;
 }
 
-int32_t sndProcessUMsg(SSnode *pSnode, SRpcMsg *pMsg) {
-  // stream deploy
-  // stream stop/resume
-  // operator exec
+int32_t sndProcessWriteMsg(SSnode *pSnode, SRpcMsg *pMsg, SRpcMsg *pRsp) {
+  void   *pReq = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
+  int32_t len = pMsg->contLen - sizeof(SMsgHead);
   switch (pMsg->msgType) {
     case TDMT_STREAM_TASK_DEPLOY:
-      return sndProcessTaskDeployReq(pSnode, pMsg);
+      return sndProcessTaskDeployReq(pSnode, pReq, len);
     case TDMT_STREAM_TASK_DROP:
-      return sndProcessTaskDropReq(pSnode, pMsg);
+      return sndProcessTaskDropReq(pSnode, pReq, len);
     default:
       ASSERT(0);
   }
   return 0;
 }
 
-int32_t sndProcessSMsg(SSnode *pSnode, SRpcMsg *pMsg) {
+int32_t sndProcessStreamMsg(SSnode *pSnode, SRpcMsg *pMsg) {
   switch (pMsg->msgType) {
     case TDMT_STREAM_TASK_RUN:
       return sndProcessTaskRunReq(pSnode, pMsg);
     case TDMT_STREAM_TASK_DISPATCH:
-      return sndProcessTaskDispatchReq(pSnode, pMsg);
-    case TDMT_STREAM_TASK_RECOVER:
-      return sndProcessTaskRecoverReq(pSnode, pMsg);
+      return sndProcessTaskDispatchReq(pSnode, pMsg, true);
     case TDMT_STREAM_RETRIEVE:
-      return sndProcessTaskRecoverReq(pSnode, pMsg);
+      return sndProcessTaskRetrieveReq(pSnode, pMsg);
     case TDMT_STREAM_TASK_DISPATCH_RSP:
       return sndProcessTaskDispatchRsp(pSnode, pMsg);
-    case TDMT_STREAM_TASK_RECOVER_RSP:
-      return sndProcessTaskRecoverRsp(pSnode, pMsg);
     case TDMT_STREAM_RETRIEVE_RSP:
       return sndProcessTaskRetrieveRsp(pSnode, pMsg);
     default:
@@ -267,4 +278,3 @@ int32_t sndProcessSMsg(SSnode *pSnode, SRpcMsg *pMsg) {
   }
   return 0;
 }
-#endif
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 8f8de4d85881e6e686ed43a5424b8ad312f5f8a5..2c01645389496450d632cd424e253510f511c940 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -1272,7 +1272,6 @@ int32_t tqProcessSubmitReq(STQ* pTq, SSubmitReq* pReq, int64_t ver) {
 }
 
 int32_t tqProcessTaskRunReq(STQ* pTq, SRpcMsg* pMsg) {
-  //
   SStreamTaskRunReq* pReq = pMsg->pCont;
   int32_t            taskId = pReq->taskId;
   SStreamTask*       pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
@@ -1285,7 +1284,6 @@ int32_t tqProcessTaskRunReq(STQ* pTq, SRpcMsg* pMsg) {
 }
 
 int32_t tqProcessTaskDispatchReq(STQ* pTq, SRpcMsg* pMsg, bool exec) {
-  ASSERT(0);
   char*              msgStr = pMsg->pCont;
   char*              msgBody = POINTER_SHIFT(msgStr, sizeof(SMsgHead));
   int32_t            msgLen = pMsg->contLen - sizeof(SMsgHead);
@@ -1349,7 +1347,6 @@ int32_t tqProcessTaskDispatchRsp(STQ* pTq, SRpcMsg* pMsg) {
 
 int32_t tqProcessTaskDropReq(STQ* pTq, int64_t version, char* msg, int32_t msgLen) {
   SVDropStreamTaskReq* pReq = (SVDropStreamTaskReq*)msg;
-
   return streamMetaRemoveTask(pTq->pStreamMeta, pReq->taskId);
 }
 
diff --git a/source/dnode/vnode/src/vnd/vnodeSvr.c b/source/dnode/vnode/src/vnd/vnodeSvr.c
index ce346c19ca4c6ce1212691e60c5dce457c1f68c6..4579f0c7a4ad83bfc71f4af7d10611c397b0a7e4 100644
--- a/source/dnode/vnode/src/vnd/vnodeSvr.c
+++ b/source/dnode/vnode/src/vnd/vnodeSvr.c
@@ -369,8 +369,8 @@ int32_t vnodeProcessFetchMsg(SVnode *pVnode, SRpcMsg *pMsg, SQueueInfo *pInfo) {
       return qWorkerProcessFetchMsg(pVnode, pVnode->pQuery, pMsg, 0);
     case TDMT_SCH_FETCH_RSP:
       return qWorkerProcessRspMsg(pVnode, pVnode->pQuery, pMsg, 0);
-    //case TDMT_SCH_CANCEL_TASK:
-    //  return qWorkerProcessCancelMsg(pVnode, pVnode->pQuery, pMsg, 0);
+    // case TDMT_SCH_CANCEL_TASK:
+    //   return qWorkerProcessCancelMsg(pVnode, pVnode->pQuery, pMsg, 0);
     case TDMT_SCH_DROP_TASK:
       return qWorkerProcessDropMsg(pVnode, pVnode->pQuery, pMsg, 0);
     case TDMT_SCH_QUERY_HEARTBEAT:
@@ -385,9 +385,10 @@ int32_t vnodeProcessFetchMsg(SVnode *pVnode, SRpcMsg *pMsg, SQueueInfo *pInfo) {
       return tqProcessPollReq(pVnode->pTq, pMsg);
     case TDMT_STREAM_TASK_RUN:
       return tqProcessTaskRunReq(pVnode->pTq, pMsg);
+#if 0
     case TDMT_STREAM_TASK_DISPATCH:
-      //      return tqProcessTaskDispatchReq(pVnode->pTq, pMsg, pInfo->workerId != 0);
       return tqProcessTaskDispatchReq(pVnode->pTq, pMsg, true);
+#endif
       /*case TDMT_STREAM_TASK_RECOVER:*/
       /*return tqProcessTaskRecoverReq(pVnode->pTq, pMsg);*/
     case TDMT_STREAM_RETRIEVE:
diff --git a/tests/script/jenkins/basic.txt b/tests/script/jenkins/basic.txt
index ec8539dbfc39afd5fc7a201b0072ec7ff9faa1bd..95bf68983277580908d50cb569f85d29849af943 100644
--- a/tests/script/jenkins/basic.txt
+++ b/tests/script/jenkins/basic.txt
@@ -241,7 +241,7 @@
 ./test.sh -f tsim/stream/triggerSession0.sim
 ./test.sh -f tsim/stream/partitionby.sim
 ./test.sh -f tsim/stream/partitionby1.sim
-# unsupport ./test.sh -f tsim/stream/schedSnode.sim
+./test.sh -f tsim/stream/schedSnode.sim
 ./test.sh -f tsim/stream/windowClose.sim
 ./test.sh -f tsim/stream/ignoreExpiredData.sim
 ./test.sh -f tsim/stream/sliding.sim
diff --git a/tests/script/tsim/stream/schedSnode.sim b/tests/script/tsim/stream/schedSnode.sim
index 61f01baf399b0fa4aad3adee9e006ecda60a72a5..2caecf50a202db447b6b45e37ce99cd50ed4ec7f 100644
--- a/tests/script/tsim/stream/schedSnode.sim
+++ b/tests/script/tsim/stream/schedSnode.sim
@@ -6,10 +6,14 @@ system sh/exec.sh -n dnode1 -s start
 sleep 50
 sql connect
 
-sql create snode on dnode 1
+sleep 50
+
 
-sql create database test  vgroups 1;
+sql create database test  vgroups 2;
 sql create database target vgroups 1;
+
+sql create snode on dnode 1
+
 sql use test;
 sql create stable st(ts timestamp, a int, b int , c int, d double) tags(ta int,tb int,tc int);
 sql create table ts1 using st tags(1,1,1);
@@ -72,23 +76,23 @@ if $data01 != 8 then
   goto loop1
 endi
 
-if $data02 != 4 then
+if $data02 != 6 then
   print =====data02=$data02
   goto loop1
 endi
 
-if $data03 != 4 then
-  print ======$data03
+if $data03 != 52 then
+  print ======data03=$data03
   goto loop1
 endi
 
 if $data04 != 52 then
-  print ======$data04
+  print ======data04=$data04
   goto loop1
 endi
 
 if $data05 != 13 then
-  print ======$data05
+  print ======data05=$data05
   goto loop1
 endi
 
@@ -104,17 +108,17 @@ if $data12 != 6 then
 endi
 
 if $data13 != 92 then
-  print ======$data13
+  print ======data13=$data13
   return -1
 endi
 
 if $data14 != 22 then
-  print ======$data14
+  print ======data14=$data14
   return -1
 endi
 
 if $data15 != 3 then
-  print ======$data15
+  print ======data15=$data15
   return -1
 endi
 
@@ -130,17 +134,17 @@ if $data22 != 4 then
 endi
 
 if $data23 != 32 then
-  print ======$data23
+  print ======data23=$data23
   return -1
 endi
 
 if $data24 != 12 then
-  print ======$data24
+  print ======data24=$data24
   return -1
 endi
 
 if $data25 != 3 then
-  print ======$data25
+  print ======data25=$data25
   return -1
 endi
 
@@ -156,17 +160,17 @@ if $data32 != 30 then
 endi
 
 if $data33 != 180 then
-  print ======$data33
+  print ======data33=$data33
   return -1
 endi
 
 if $data34 != 42 then
-  print ======$data34
+  print ======data34=$data34
   return -1
 endi
 
 if $data35 != 3 then
-  print ======$data35
+  print ======data35=$data35
   return -1
 endi