diff --git a/example/src/tstream.c b/example/src/tstream.c
index 51578bd27b..8ffa932bd2 100644
--- a/example/src/tstream.c
+++ b/example/src/tstream.c
@@ -25,7 +25,7 @@ int32_t init_env() {
     return -1;
   }
 
-  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 1");
+  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 2");
   if (taos_errno(pRes) != 0) {
     printf("error in create db, reason:%s\n", taos_errstr(pRes));
     return -1;
diff --git a/include/client/taos.h b/include/client/taos.h
index 55e1d1c422..dc54b89d04 100644
--- a/include/client/taos.h
+++ b/include/client/taos.h
@@ -217,7 +217,6 @@ DLL_EXPORT void        tmq_list_destroy(tmq_list_t *);
 
 DLL_EXPORT tmq_t      *tmq_consumer_new(void *conn, tmq_conf_t *conf, char *errstr, int32_t errstrLen);
 DLL_EXPORT tmq_t      *tmq_consumer_new1(tmq_conf_t *conf, char *errstr, int32_t errstrLen);
-DLL_EXPORT void        tmq_message_destroy(tmq_message_t *tmq_message);
 DLL_EXPORT const char *tmq_err2str(tmq_resp_err_t);
 
 /* ------------------------TMQ CONSUMER INTERFACE------------------------ */
@@ -258,7 +257,8 @@ int32_t tmqGetSkipLogNum(tmq_message_t *tmq_message);
 
 DLL_EXPORT TAOS_ROW tmq_get_row(tmq_message_t *message);
 DLL_EXPORT char    *tmq_get_topic_name(tmq_message_t *message);
-DLL_EXPORT char    *tmq_get_topic_schema(tmq_t *tmq, const char *topic);
+DLL_EXPORT void    *tmq_get_topic_schema(tmq_t *tmq, const char *topic);
+DLL_EXPORT void     tmq_message_destroy(tmq_message_t *tmq_message);
 
 /* --------------------TMPORARY INTERFACE FOR TESTING--------------------- */
 DLL_EXPORT TAOS_RES *tmq_create_topic(TAOS *taos, const char *name, const char *sql, int sqlLen);
diff --git a/include/common/tmsgdef.h b/include/common/tmsgdef.h
index 051ee34644..36a489eb59 100644
--- a/include/common/tmsgdef.h
+++ b/include/common/tmsgdef.h
@@ -192,7 +192,6 @@ enum {
   TD_DEF_MSG_TYPE(TDMT_VND_SUBSCRIBE, "vnode-subscribe", SMVSubscribeReq, SMVSubscribeRsp)
   TD_DEF_MSG_TYPE(TDMT_VND_CONSUME, "vnode-consume", SMqCVConsumeReq, SMqCVConsumeRsp)
   TD_DEF_MSG_TYPE(TDMT_VND_TASK_DEPLOY, "vnode-task-deploy", SStreamTaskDeployReq, SStreamTaskDeployRsp)
-  TD_DEF_MSG_TYPE(TDMT_VND_TASK_EXEC, "vnode-task-exec", SStreamTaskExecReq, SStreamTaskExecRsp)
   TD_DEF_MSG_TYPE(TDMT_VND_TASK_PIPE_EXEC, "vnode-task-pipe-exec", SStreamTaskExecReq, SStreamTaskExecRsp)
   TD_DEF_MSG_TYPE(TDMT_VND_TASK_MERGE_EXEC, "vnode-task-merge-exec", SStreamTaskExecReq, SStreamTaskExecRsp)
   TD_DEF_MSG_TYPE(TDMT_VND_TASK_WRITE_EXEC, "vnode-task-write-exec", SStreamTaskExecReq, SStreamTaskExecRsp)
diff --git a/include/libs/stream/tstream.h b/include/libs/stream/tstream.h
index 177fe39397..8be9bbbebd 100644
--- a/include/libs/stream/tstream.h
+++ b/include/libs/stream/tstream.h
@@ -62,10 +62,11 @@ typedef struct {
 } STaskExec;
 
 typedef struct {
-  int8_t reserved;
+  int32_t taskId;
 } STaskDispatcherInplace;
 
 typedef struct {
+  int32_t taskId;
   int32_t nodeId;
   SEpSet  epSet;
 } STaskDispatcherFixedEp;
@@ -81,8 +82,12 @@ typedef struct {
   SHashObj* pHash;  // groupId to tbuid
 } STaskSinkTb;
 
+typedef void FSmaHandle(void* vnode, int64_t smaId, const SArray* data);
+
 typedef struct {
-  int8_t reserved;
+  int64_t smaId;
+  // following are not applicable to encoder and decoder
+  FSmaHandle* smaHandle;
 } STaskSinkSma;
 
 typedef struct {
@@ -155,7 +160,8 @@ typedef struct {
     STaskDispatcherShuffle shuffleDispatcher;
   };
 
-  // state storage
+  // application storage
+  void* ahandle;
 
 } SStreamTask;
 
diff --git a/include/util/tprocess.h b/include/util/tprocess.h
index 4ce536fd96..a0be38a3ad 100644
--- a/include/util/tprocess.h
+++ b/include/util/tprocess.h
@@ -51,6 +51,7 @@ void      taosProcCleanup(SProcObj *pProc);
 int32_t   taosProcRun(SProcObj *pProc);
 void      taosProcStop(SProcObj *pProc);
 bool      taosProcIsChild(SProcObj *pProc);
+int32_t   taosProcChildId(SProcObj *pProc);
 
 int32_t taosProcPutToChildQueue(SProcObj *pProc, void *pHead, int32_t headLen, void *pBody, int32_t bodyLen);
 int32_t taosProcPutToParentQueue(SProcObj *pProc, void *pHead, int32_t headLen, void *pBody, int32_t bodyLen);
diff --git a/source/client/src/tmq.c b/source/client/src/tmq.c
index 2a9b3cdf64..5d00cca76e 100644
--- a/source/client/src/tmq.c
+++ b/source/client/src/tmq.c
@@ -186,23 +186,23 @@ tmq_conf_res_t tmq_conf_set(tmq_conf_t* conf, const char* key, const char* value
     }
   }
 
-  if (strcmp(key, "connection.ip") == 0) {
+  if (strcmp(key, "td.connect.ip") == 0) {
     conf->ip = strdup(value);
     return TMQ_CONF_OK;
   }
-  if (strcmp(key, "connection.user") == 0) {
+  if (strcmp(key, "td.connect.user") == 0) {
     conf->user = strdup(value);
     return TMQ_CONF_OK;
   }
-  if (strcmp(key, "connection.pass") == 0) {
+  if (strcmp(key, "td.connect.pass") == 0) {
     conf->pass = strdup(value);
     return TMQ_CONF_OK;
   }
-  if (strcmp(key, "connection.port") == 0) {
+  if (strcmp(key, "td.connect.port") == 0) {
     conf->port = atoi(value);
     return TMQ_CONF_OK;
   }
-  if (strcmp(key, "connection.db") == 0) {
+  if (strcmp(key, "td.connect.db") == 0) {
     conf->db = strdup(value);
     return TMQ_CONF_OK;
   }
@@ -223,13 +223,13 @@ int32_t tmq_list_append(tmq_list_t* list, const char* src) {
 }
 
 void tmq_list_destroy(tmq_list_t* list) {
-  SArray* container = (SArray*)list;
+  SArray* container = &list->container;
   /*taosArrayDestroy(container);*/
   taosArrayDestroyEx(container, (void (*)(void*))taosMemoryFree);
 }
 
 void tmqClearUnhandleMsg(tmq_t* tmq) {
-  tmq_message_t* msg;
+  tmq_message_t* msg = NULL;
   while (1) {
     taosGetQitem(tmq->qall, (void**)&msg);
     if (msg)
@@ -807,7 +807,7 @@ int32_t tmqPollCb(void* param, const SDataBuf* pMsg, int32_t code) {
   SMqClientVg*    pVg = pParam->pVg;
   tmq_t*          tmq = pParam->tmq;
   if (code != 0) {
-    printf("msg discard %x\n", code);
+    printf("msg discard, code:%x\n", code);
     goto WRITE_QUEUE_FAIL;
   }
 
@@ -877,10 +877,10 @@ WRITE_QUEUE_FAIL:
 }
 
 bool tmqUpdateEp(tmq_t* tmq, int32_t epoch, SMqCMGetSubEpRsp* pRsp) {
+  /*printf("call update ep %d\n", epoch);*/
   bool    set = false;
   int32_t sz = taosArrayGetSize(pRsp->topics);
-  if (tmq->clientTopics) taosArrayDestroy(tmq->clientTopics);
-  tmq->clientTopics = taosArrayInit(sz, sizeof(SMqClientTopic));
+  SArray* newTopics = taosArrayInit(sz, sizeof(SMqClientTopic));
   for (int32_t i = 0; i < sz; i++) {
     SMqClientTopic topic = {0};
     SMqSubTopicEp* pTopicEp = taosArrayGet(pRsp->topics, i);
@@ -899,8 +899,10 @@ bool tmqUpdateEp(tmq_t* tmq, int32_t epoch, SMqCMGetSubEpRsp* pRsp) {
       taosArrayPush(topic.vgs, &clientVg);
       set = true;
     }
-    taosArrayPush(tmq->clientTopics, &topic);
+    taosArrayPush(newTopics, &topic);
   }
+  if (tmq->clientTopics) taosArrayDestroy(tmq->clientTopics);
+  tmq->clientTopics = newTopics;
   atomic_store_32(&tmq->epoch, epoch);
   return set;
 }
@@ -1219,6 +1221,7 @@ tmq_message_t* tmqHandleAllRsp(tmq_t* tmq, int64_t blockingTime, bool pollIfRese
       if (rspMsg->msg.head.epoch == atomic_load_32(&tmq->epoch)) {
         /*printf("epoch match\n");*/
         SMqClientVg* pVg = rspMsg->vg;
+        /*printf("vg %d offset %ld up to %ld\n", pVg->vgId, pVg->currentOffset, rspMsg->msg.rspOffset);*/
         pVg->currentOffset = rspMsg->msg.rspOffset;
         atomic_store_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE);
         return rspMsg;
diff --git a/source/dnode/mgmt/container/inc/dndInt.h b/source/dnode/mgmt/container/inc/dndInt.h
index d10835b67f..8ea496b2fb 100644
--- a/source/dnode/mgmt/container/inc/dndInt.h
+++ b/source/dnode/mgmt/container/inc/dndInt.h
@@ -56,7 +56,6 @@ void    dndCleanupServer(SDnode *pDnode);
 int32_t dndInitClient(SDnode *pDnode);
 void    dndCleanupClient(SDnode *pDnode);
 int32_t dndInitMsgHandle(SDnode *pDnode);
-void    dndSendRpcRsp(SMgmtWrapper *pWrapper, SRpcMsg *pRsp);
 
 #ifdef __cplusplus
 }
diff --git a/source/dnode/mgmt/container/src/dndExec.c b/source/dnode/mgmt/container/src/dndExec.c
index 3c29f80c94..a7b8ca288b 100644
--- a/source/dnode/mgmt/container/src/dndExec.c
+++ b/source/dnode/mgmt/container/src/dndExec.c
@@ -20,7 +20,7 @@ static void dndResetLog(SMgmtWrapper *pMgmt) {
   char logname[24] = {0};
   snprintf(logname, sizeof(logname), "%slog", pMgmt->name);
 
-  dInfo("node:%s, reset log to %s", pMgmt->name, logname);
+  dInfo("node:%s, reset log to %s in child process", pMgmt->name, logname);
   taosCloseLog();
   taosInitLog(logname, 1);
 }
@@ -51,6 +51,7 @@ int32_t dndOpenNode(SMgmtWrapper *pWrapper) {
 
 void dndCloseNode(SMgmtWrapper *pWrapper) {
   dDebug("node:%s, start to close", pWrapper->name);
+  pWrapper->required = false;
   taosWLockLatch(&pWrapper->latch);
   if (pWrapper->deployed) {
     (*pWrapper->fp.closeFp)(pWrapper);
@@ -138,7 +139,7 @@ static void dndConsumeChildQueue(SMgmtWrapper *pWrapper, SNodeMsg *pMsg, int32_t
 static void dndConsumeParentQueue(SMgmtWrapper *pWrapper, SRpcMsg *pRsp, int32_t msgLen, void *pCont, int32_t contLen) {
   dTrace("msg:%p, get from parent queue", pRsp);
   pRsp->pCont = pCont;
-  dndSendRpcRsp(pWrapper, pRsp);
+  dndSendRsp(pWrapper, pRsp);
   taosMemoryFree(pRsp);
 }
 
@@ -178,7 +179,6 @@ static int32_t dndRunInMultiProcess(SDnode *pDnode) {
                      .parentFreeHeadFp = (ProcFreeFp)taosMemoryFree,
                      .parentMallocBodyFp = (ProcMallocFp)rpcMallocCont,
                      .parentFreeBodyFp = (ProcFreeFp)rpcFreeCont,
-                     .testFlag = 0,
                      .pParent = pWrapper,
                      .name = pWrapper->name};
     SProcObj *pProc = taosProcInit(&cfg);
@@ -200,7 +200,7 @@ static int32_t dndRunInMultiProcess(SDnode *pDnode) {
       dInfo("node:%s, will be initialized in child process", pWrapper->name);
       dndOpenNode(pWrapper);
     } else {
-      dInfo("node:%s, will not start in parent process", pWrapper->name);
+      dInfo("node:%s, will not start in parent process, child pid:%d", pWrapper->name, taosProcChildId(pProc));
       pWrapper->procType = PROC_PARENT;
     }
 
@@ -210,16 +210,20 @@ static int32_t dndRunInMultiProcess(SDnode *pDnode) {
     }
   }
 
-#if 0
-  SMgmtWrapper *pWrapper = dndAcquireWrapper(pDnode, DNODE);
-  if (pWrapper->procType == PROC_PARENT && dmStart(pWrapper->pMgmt) != 0) {
-    dndReleaseWrapper(pWrapper);
-    dError("failed to start dnode worker since %s", terrstr());
-    return -1;
+  dndSetStatus(pDnode, DND_STAT_RUNNING);
+
+  for (ENodeType n = 0; n < NODE_MAX; ++n) {
+    SMgmtWrapper *pWrapper = &pDnode->wrappers[n];
+    if (!pWrapper->required) continue;
+    if (pWrapper->fp.startFp == NULL) continue;
+    if (pWrapper->procType == PROC_PARENT && n != DNODE) continue;
+    if (pWrapper->procType == PROC_CHILD && n == DNODE) continue;
+    if ((*pWrapper->fp.startFp)(pWrapper) != 0) {
+      dError("node:%s, failed to start since %s", pWrapper->name, terrstr());
+      return -1;
+    }
   }
 
-  dndReleaseWrapper(pWrapper);
-#endif
   return 0;
 }
 
diff --git a/source/dnode/mgmt/container/src/dndFile.c b/source/dnode/mgmt/container/src/dndFile.c
index f860bf8e2d..ab04040b57 100644
--- a/source/dnode/mgmt/container/src/dndFile.c
+++ b/source/dnode/mgmt/container/src/dndFile.c
@@ -16,14 +16,16 @@
 #define _DEFAULT_SOURCE
 #include "dndInt.h"
 
+#define MAXLEN 1024
+
 int32_t dndReadFile(SMgmtWrapper *pWrapper, bool *pDeployed) {
-  int32_t   code = TSDB_CODE_NODE_PARSE_FILE_ERROR;
-  int32_t   len = 0;
-  int32_t   maxLen = 1024;
-  char     *content = taosMemoryCalloc(1, maxLen + 1);
-  cJSON    *root = NULL;
-  char      file[PATH_MAX];
-  TdFilePtr pFile = NULL;
+  int32_t       code = TSDB_CODE_NODE_PARSE_FILE_ERROR;
+  int32_t       len = 0;
+  const int32_t maxLen = MAXLEN;
+  char          content[MAXLEN + 1] = {0};
+  cJSON        *root = NULL;
+  char          file[PATH_MAX];
+  TdFilePtr     pFile = NULL;
 
   snprintf(file, sizeof(file), "%s%s%s.json", pWrapper->path, TD_DIRSEP, pWrapper->name);
   pFile = taosOpenFile(file, TD_FILE_READ);
@@ -57,7 +59,6 @@ int32_t dndReadFile(SMgmtWrapper *pWrapper, bool *pDeployed) {
   dDebug("succcessed to read file %s, deployed:%d", file, *pDeployed);
 
 _OVER:
-  if (content != NULL) taosMemoryFree(content);
   if (root != NULL) cJSON_Delete(root);
   if (pFile != NULL) taosCloseFile(&pFile);
 
@@ -66,7 +67,7 @@ _OVER:
 }
 
 int32_t dndWriteFile(SMgmtWrapper *pWrapper, bool deployed) {
-  char file[PATH_MAX];
+  char file[PATH_MAX] = {0};
   snprintf(file, sizeof(file), "%s%s%s.json", pWrapper->path, TD_DIRSEP, pWrapper->name);
 
   TdFilePtr pFile = taosOpenFile(file, TD_FILE_CTEATE | TD_FILE_WRITE | TD_FILE_TRUNC);
@@ -76,9 +77,9 @@ int32_t dndWriteFile(SMgmtWrapper *pWrapper, bool deployed) {
     return -1;
   }
 
-  int32_t len = 0;
-  int32_t maxLen = 1024;
-  char   *content = taosMemoryCalloc(1, maxLen + 1);
+  int32_t       len = 0;
+  const int32_t maxLen = MAXLEN;
+  char          content[MAXLEN + 1] = {0};
 
   len += snprintf(content + len, maxLen - len, "{\n");
   len += snprintf(content + len, maxLen - len, "  \"deployed\": %d\n", deployed);
@@ -87,9 +88,8 @@ int32_t dndWriteFile(SMgmtWrapper *pWrapper, bool deployed) {
   taosWriteFile(pFile, content, len);
   taosFsyncFile(pFile);
   taosCloseFile(&pFile);
-  taosMemoryFree(content);
 
-  char realfile[PATH_MAX];
+  char realfile[PATH_MAX] = {0};
   snprintf(realfile, sizeof(realfile), "%s%s%s.json", pWrapper->path, TD_DIRSEP, pWrapper->name);
 
   if (taosRenameFile(file, realfile) != 0) {
diff --git a/source/dnode/mgmt/container/src/dndMsg.c b/source/dnode/mgmt/container/src/dndMsg.c
index 37ff4ebc05..b72d085861 100644
--- a/source/dnode/mgmt/container/src/dndMsg.c
+++ b/source/dnode/mgmt/container/src/dndMsg.c
@@ -43,36 +43,40 @@ static inline int32_t dndBuildMsg(SNodeMsg *pMsg, SRpcMsg *pRpc) {
 
   memcpy(pMsg->user, connInfo.user, TSDB_USER_LEN);
   memcpy(&pMsg->rpcMsg, pRpc, sizeof(SRpcMsg));
-
   return 0;
 }
 
 void dndProcessRpcMsg(SMgmtWrapper *pWrapper, SRpcMsg *pRpc, SEpSet *pEpSet) {
-  if (pEpSet && pEpSet->numOfEps > 0 && pRpc->msgType == TDMT_MND_STATUS_RSP) {
-    dndUpdateMnodeEpSet(pWrapper->pDnode, pEpSet);
-  }
-
   int32_t   code = -1;
   SNodeMsg *pMsg = NULL;
   NodeMsgFp msgFp = NULL;
 
+  if (pEpSet && pEpSet->numOfEps > 0 && pRpc->msgType == TDMT_MND_STATUS_RSP) {
+    dndUpdateMnodeEpSet(pWrapper->pDnode, pEpSet);
+  }
+
   if (dndMarkWrapper(pWrapper) != 0) goto _OVER;
   if ((msgFp = dndGetMsgFp(pWrapper, pRpc)) == NULL) goto _OVER;
   if ((pMsg = taosAllocateQitem(sizeof(SNodeMsg))) == NULL) goto _OVER;
   if (dndBuildMsg(pMsg, pRpc) != 0) goto _OVER;
 
-  dTrace("msg:%p, is created, handle:%p app:%p user:%s", pMsg, pRpc->handle, pRpc->ahandle, pMsg->user);
   if (pWrapper->procType == PROC_SINGLE) {
+    dTrace("msg:%p, is created, handle:%p app:%p user:%s", pMsg, pRpc->handle, pRpc->ahandle, pMsg->user);
     code = (*msgFp)(pWrapper->pMgmt, pMsg);
   } else if (pWrapper->procType == PROC_PARENT) {
+    dTrace("msg:%p, is created and will put into child queue, handle:%p app:%p user:%s", pMsg, pRpc->handle,
+           pRpc->ahandle, pMsg->user);
     code = taosProcPutToChildQueue(pWrapper->pProc, pMsg, sizeof(SNodeMsg), pRpc->pCont, pRpc->contLen);
   } else {
+    dTrace("msg:%p, should not processed in child process, handle:%p app:%p user:%s", pMsg, pRpc->handle, pRpc->ahandle,
+           pMsg->user);
+    ASSERT(1);
   }
 
 _OVER:
   if (code == 0) {
     if (pWrapper->procType == PROC_PARENT) {
-      dTrace("msg:%p, is freed", pMsg);
+      dTrace("msg:%p, is freed in parent process", pMsg);
       taosFreeQitem(pMsg);
       rpcFreeCont(pRpc->pCont);
     }
diff --git a/source/dnode/mgmt/container/src/dndObj.c b/source/dnode/mgmt/container/src/dndObj.c
index ff414b5f5e..b9ea8df808 100644
--- a/source/dnode/mgmt/container/src/dndObj.c
+++ b/source/dnode/mgmt/container/src/dndObj.c
@@ -175,7 +175,7 @@ int32_t dndMarkWrapper(SMgmtWrapper *pWrapper) {
   int32_t code = 0;
 
   taosRLockLatch(&pWrapper->latch);
-  if (pWrapper->deployed) {
+  if (pWrapper->deployed || (pWrapper->procType == PROC_PARENT && pWrapper->required)) {
     int32_t refCount = atomic_add_fetch_32(&pWrapper->refCount, 1);
     dTrace("node:%s, is marked, refCount:%d", pWrapper->name, refCount);
   } else {
diff --git a/source/dnode/mgmt/container/src/dndTransport.c b/source/dnode/mgmt/container/src/dndTransport.c
index 4acb1f459e..b7d0cf26c0 100644
--- a/source/dnode/mgmt/container/src/dndTransport.c
+++ b/source/dnode/mgmt/container/src/dndTransport.c
@@ -348,7 +348,7 @@ int32_t dndSendReqToMnode(SMgmtWrapper *pWrapper, SRpcMsg *pReq) {
   }
 }
 
-void dndSendRpcRsp(SMgmtWrapper *pWrapper, SRpcMsg *pRsp) {
+static void dndSendRpcRsp(SMgmtWrapper *pWrapper, SRpcMsg *pRsp) {
   if (pRsp->code == TSDB_CODE_APP_NOT_READY) {
     SMgmtWrapper *pDnodeWrapper = dndAcquireWrapper(pWrapper->pDnode, DNODE);
     if (pDnodeWrapper != NULL) {
diff --git a/source/dnode/mgmt/vnode/src/vmMsg.c b/source/dnode/mgmt/vnode/src/vmMsg.c
index 97d829571f..1682c6043d 100644
--- a/source/dnode/mgmt/vnode/src/vmMsg.c
+++ b/source/dnode/mgmt/vnode/src/vmMsg.c
@@ -279,7 +279,6 @@ void vmInitMsgHandles(SMgmtWrapper *pWrapper) {
   dndSetMsgHandle(pWrapper, TDMT_VND_CONSUME, (NodeMsgFp)vmProcessFetchMsg, VND_VGID);
   dndSetMsgHandle(pWrapper, TDMT_VND_TASK_DEPLOY, (NodeMsgFp)vmProcessWriteMsg, VND_VGID);
   dndSetMsgHandle(pWrapper, TDMT_VND_QUERY_HEARTBEAT, (NodeMsgFp)vmProcessFetchMsg, VND_VGID);
-  dndSetMsgHandle(pWrapper, TDMT_VND_TASK_EXEC, (NodeMsgFp)vmProcessFetchMsg, VND_VGID);
   dndSetMsgHandle(pWrapper, TDMT_VND_TASK_PIPE_EXEC, (NodeMsgFp)vmProcessFetchMsg, VND_VGID);
   dndSetMsgHandle(pWrapper, TDMT_VND_TASK_MERGE_EXEC, (NodeMsgFp)vmProcessMergeMsg, VND_VGID);
   dndSetMsgHandle(pWrapper, TDMT_VND_STREAM_TRIGGER, (NodeMsgFp)vmProcessFetchMsg, VND_VGID);
diff --git a/source/dnode/mgmt/vnode/src/vmWorker.c b/source/dnode/mgmt/vnode/src/vmWorker.c
index e97d6e7f11..7b6d78a60c 100644
--- a/source/dnode/mgmt/vnode/src/vmWorker.c
+++ b/source/dnode/mgmt/vnode/src/vmWorker.c
@@ -160,6 +160,24 @@ static void vmProcessSyncQueue(SQueueInfo *pInfo, STaosQall *qall, int32_t numOf
   }
 }
 
+static void vmProcessMergeQueue(SQueueInfo *pInfo, STaosQall *qall, int32_t numOfMsgs) {
+  SVnodeObj *pVnode = pInfo->ahandle;
+  SNodeMsg  *pMsg = NULL;
+
+  for (int32_t i = 0; i < numOfMsgs; ++i) {
+    taosGetQitem(qall, (void **)&pMsg);
+
+    dTrace("msg:%p, will be processed in vnode-merge queue", pMsg);
+    int32_t code = vnodeProcessFetchMsg(pVnode->pImpl, &pMsg->rpcMsg);
+    if (code != 0) {
+      vmSendRsp(pVnode->pWrapper, pMsg, code);
+      dTrace("msg:%p, is freed, result:0x%04x:%s", pMsg, code & 0XFFFF, tstrerror(code));
+      rpcFreeCont(pMsg->rpcMsg.pCont);
+      taosFreeQitem(pMsg);
+    }
+  }
+}
+
 static int32_t vmPutNodeMsgToQueue(SVnodesMgmt *pMgmt, SNodeMsg *pMsg, EQueueType qtype) {
   SRpcMsg *pRpc = &pMsg->rpcMsg;
   int32_t  code = -1;
@@ -308,7 +326,7 @@ int32_t vmGetQueueSize(SMgmtWrapper *pWrapper, int32_t vgId, EQueueType qtype) {
 int32_t vmAllocQueue(SVnodesMgmt *pMgmt, SVnodeObj *pVnode) {
   pVnode->pWriteQ = tWWorkerAllocQueue(&pMgmt->writePool, pVnode, (FItems)vmProcessWriteQueue);
   pVnode->pApplyQ = tWWorkerAllocQueue(&pMgmt->writePool, pVnode, (FItems)vmProcessApplyQueue);
-  pVnode->pMergeQ = tWWorkerAllocQueue(&pMgmt->mergePool, pVnode, (FItems)vmProcessMergeMsg);
+  pVnode->pMergeQ = tWWorkerAllocQueue(&pMgmt->mergePool, pVnode, (FItems)vmProcessMergeQueue);
   pVnode->pSyncQ = tWWorkerAllocQueue(&pMgmt->syncPool, pVnode, (FItems)vmProcessSyncQueue);
   pVnode->pFetchQ = tQWorkerAllocQueue(&pMgmt->fetchPool, pVnode, (FItem)vmProcessFetchQueue);
   pVnode->pQueryQ = tQWorkerAllocQueue(&pMgmt->queryPool, pVnode, (FItem)vmProcessQueryQueue);
diff --git a/source/dnode/mnode/impl/inc/mndScheduler.h b/source/dnode/mnode/impl/inc/mndScheduler.h
index 42951beca2..416061bf34 100644
--- a/source/dnode/mnode/impl/inc/mndScheduler.h
+++ b/source/dnode/mnode/impl/inc/mndScheduler.h
@@ -27,7 +27,7 @@ void    mndCleanupScheduler(SMnode* pMnode);
 
 int32_t mndSchedInitSubEp(SMnode* pMnode, const SMqTopicObj* pTopic, SMqSubscribeObj* pSub);
 
-int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream);
+int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream, int64_t smaId);
 
 #ifdef __cplusplus
 }
diff --git a/source/dnode/mnode/impl/inc/mndStream.h b/source/dnode/mnode/impl/inc/mndStream.h
index b5d22cb7a5..e7cdd34a7e 100644
--- a/source/dnode/mnode/impl/inc/mndStream.h
+++ b/source/dnode/mnode/impl/inc/mndStream.h
@@ -31,7 +31,7 @@ void        mndReleaseStream(SMnode *pMnode, SStreamObj *pStream);
 SSdbRaw *mndStreamActionEncode(SStreamObj *pStream);
 SSdbRow *mndStreamActionDecode(SSdbRaw *pRaw);
 
-int32_t mndAddStreamToTrans(SMnode *pMnode, SStreamObj *pStream, const char *ast, STrans *pTrans);
+int32_t mndAddStreamToTrans(SMnode *pMnode, SStreamObj *pStream, const char *ast, STrans *pTrans, int64_t smaId);
 
 #ifdef __cplusplus
 }
diff --git a/source/dnode/mnode/impl/src/mndDef.c b/source/dnode/mnode/impl/src/mndDef.c
index 24f2a5df22..1b3564924a 100644
--- a/source/dnode/mnode/impl/src/mndDef.c
+++ b/source/dnode/mnode/impl/src/mndDef.c
@@ -36,11 +36,11 @@ int32_t tEncodeSStreamObj(SCoder *pEncoder, const SStreamObj *pObj) {
   if (tEncodeI32(pEncoder, sz) < 0) return -1;
 
   for (int32_t i = 0; i < sz; i++) {
-    SArray *pArray = taosArrayGet(pObj->tasks, i);
+    SArray *pArray = taosArrayGetP(pObj->tasks, i);
     int32_t innerSz = taosArrayGetSize(pArray);
     if (tEncodeI32(pEncoder, innerSz) < 0) return -1;
     for (int32_t j = 0; j < innerSz; j++) {
-      SStreamTask *pTask = taosArrayGet(pArray, j);
+      SStreamTask *pTask = taosArrayGetP(pArray, j);
       if (tEncodeSStreamTask(pEncoder, pTask) < 0) return -1;
     }
   }
@@ -76,17 +76,18 @@ int32_t tDecodeSStreamObj(SCoder *pDecoder, SStreamObj *pObj) {
   int32_t sz;
   if (tDecodeI32(pDecoder, &sz) < 0) return -1;
   if (sz != 0) {
-    pObj->tasks = taosArrayInit(sz, sizeof(SArray));
+    pObj->tasks = taosArrayInit(sz, sizeof(void *));
     for (int32_t i = 0; i < sz; i++) {
       int32_t innerSz;
       if (tDecodeI32(pDecoder, &innerSz) < 0) return -1;
-      SArray *pArray = taosArrayInit(innerSz, sizeof(SStreamTask));
+      SArray *pArray = taosArrayInit(innerSz, sizeof(void *));
       for (int32_t j = 0; j < innerSz; j++) {
-        SStreamTask task;
-        if (tDecodeSStreamTask(pDecoder, &task) < 0) return -1;
-        taosArrayPush(pArray, &task);
+        SStreamTask *pTask = taosMemoryCalloc(1, sizeof(SStreamTask));
+        if (pTask == NULL) return -1;
+        if (tDecodeSStreamTask(pDecoder, pTask) < 0) return -1;
+        taosArrayPush(pArray, &pTask);
       }
-      taosArrayPush(pObj->tasks, pArray);
+      taosArrayPush(pObj->tasks, &pArray);
     }
   }
 
diff --git a/source/dnode/mnode/impl/src/mndScheduler.c b/source/dnode/mnode/impl/src/mndScheduler.c
index a4dfd293de..697811cd04 100644
--- a/source/dnode/mnode/impl/src/mndScheduler.c
+++ b/source/dnode/mnode/impl/src/mndScheduler.c
@@ -119,7 +119,7 @@ SVgObj* mndSchedFetchOneVg(SMnode* pMnode, int64_t dbUid) {
   return pVgroup;
 }
 
-int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
+int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream, int64_t smaId) {
   SSdb*       pSdb = pMnode->pSdb;
   SQueryPlan* pPlan = qStringToQueryPlan(pStream->physicalPlan);
   if (pPlan == NULL) {
@@ -164,6 +164,10 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
           // only for inplace
           pTask->sinkType = TASK_SINK__SHOW;
           pTask->showSink.reserved = 0;
+          if (smaId != -1) {
+            pTask->sinkType = TASK_SINK__SMA;
+            pTask->smaSink.smaId = smaId;
+          }
         } else {
           pTask->sinkType = TASK_SINK__NONE;
         }
@@ -185,6 +189,7 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
           pTask->dispatchMsgType = TDMT_VND_TASK_MERGE_EXEC;
           pTask->dispatchType = TASK_DISPATCH__FIXED;
 
+          pTask->fixedEpDispatcher.taskId = lastLevelTask->taskId;
           pTask->fixedEpDispatcher.nodeId = lastLevelTask->nodeId;
           pTask->fixedEpDispatcher.epSet = lastLevelTask->epSet;
         }
diff --git a/source/dnode/mnode/impl/src/mndSma.c b/source/dnode/mnode/impl/src/mndSma.c
index 146975aa38..5c62cfa0f2 100644
--- a/source/dnode/mnode/impl/src/mndSma.c
+++ b/source/dnode/mnode/impl/src/mndSma.c
@@ -69,7 +69,8 @@ void mndCleanupSma(SMnode *pMnode) {}
 static SSdbRaw *mndSmaActionEncode(SSmaObj *pSma) {
   terrno = TSDB_CODE_OUT_OF_MEMORY;
 
-  int32_t  size = sizeof(SSmaObj) + pSma->exprLen + pSma->tagsFilterLen + pSma->sqlLen + pSma->astLen + TSDB_SMA_RESERVE_SIZE;
+  int32_t size =
+      sizeof(SSmaObj) + pSma->exprLen + pSma->tagsFilterLen + pSma->sqlLen + pSma->astLen + TSDB_SMA_RESERVE_SIZE;
   SSdbRaw *pRaw = sdbAllocRaw(SDB_SMA, TSDB_SMA_VER_NUMBER, size);
   if (pRaw == NULL) goto _OVER;
 
@@ -427,7 +428,7 @@ static int32_t mndCreateSma(SMnode *pMnode, SNodeMsg *pReq, SMCreateSmaReq *pCre
   if (mndSetCreateSmaRedoLogs(pMnode, pTrans, &smaObj) != 0) goto _OVER;
   if (mndSetCreateSmaCommitLogs(pMnode, pTrans, &smaObj) != 0) goto _OVER;
   if (mndSetCreateSmaRedoActions(pMnode, pTrans, pDb, &smaObj) != 0) goto _OVER;
-  if (mndAddStreamToTrans(pMnode, &streamObj, pCreate->ast, pTrans) != 0) goto _OVER;
+  if (mndAddStreamToTrans(pMnode, &streamObj, pCreate->ast, pTrans, smaObj.uid) != 0) goto _OVER;
   if (mndTransPrepare(pMnode, pTrans) != 0) goto _OVER;
 
   code = 0;
@@ -491,7 +492,7 @@ static int32_t mndProcessMCreateSmaReq(SNodeMsg *pReq) {
     mError("sma:%s, failed to create since stb:%s not exist", createReq.name, createReq.stb);
     goto _OVER;
   }
-  
+
   pStream = mndAcquireStream(pMnode, createReq.name);
   if (pStream != NULL) {
     mError("sma:%s, failed to create since stream:%s already exist", createReq.name, createReq.name);
diff --git a/source/dnode/mnode/impl/src/mndStream.c b/source/dnode/mnode/impl/src/mndStream.c
index c02fec0a5f..bbb2f64282 100644
--- a/source/dnode/mnode/impl/src/mndStream.c
+++ b/source/dnode/mnode/impl/src/mndStream.c
@@ -246,7 +246,7 @@ static int32_t mndStreamGetPlanString(const char *ast, char **pStr) {
   return code;
 }
 
-int32_t mndAddStreamToTrans(SMnode *pMnode, SStreamObj *pStream, const char *ast, STrans *pTrans) {
+int32_t mndAddStreamToTrans(SMnode *pMnode, SStreamObj *pStream, const char *ast, STrans *pTrans, int64_t smaId) {
   SNode *pAst = NULL;
 
   if (nodesStringToNode(ast, &pAst) < 0) {
@@ -271,7 +271,7 @@ int32_t mndAddStreamToTrans(SMnode *pMnode, SStreamObj *pStream, const char *ast
     return -1;
   }
 
-  if (mndScheduleStream(pMnode, pTrans, pStream) < 0) {
+  if (mndScheduleStream(pMnode, pTrans, pStream, smaId) < 0) {
     mError("stream:%ld, schedule stream since %s", pStream->uid, terrstr());
     return -1;
   }
@@ -310,7 +310,7 @@ static int32_t mndCreateStream(SMnode *pMnode, SNodeMsg *pReq, SCMCreateStreamRe
   }
   mDebug("trans:%d, used to create stream:%s", pTrans->id, pCreate->name);
 
-  if (mndAddStreamToTrans(pMnode, &streamObj, pCreate->ast, pTrans) != 0) {
+  if (mndAddStreamToTrans(pMnode, &streamObj, pCreate->ast, pTrans, -1) != 0) {
     mError("trans:%d, failed to add stream since %s", pTrans->id, terrstr());
     mndTransDrop(pTrans);
     return -1;
diff --git a/source/dnode/mnode/impl/src/mndUser.c b/source/dnode/mnode/impl/src/mndUser.c
index ff34c26c4a..7d3f755cd7 100644
--- a/source/dnode/mnode/impl/src/mndUser.c
+++ b/source/dnode/mnode/impl/src/mndUser.c
@@ -21,7 +21,7 @@
 #include "mndTrans.h"
 #include "tbase64.h"
 
-#define TSDB_USER_VER_NUMBER 1
+#define TSDB_USER_VER_NUMBER   1
 #define TSDB_USER_RESERVE_SIZE 64
 
 static int32_t  mndCreateDefaultUsers(SMnode *pMnode);
@@ -270,7 +270,7 @@ static int32_t mndCreateUser(SMnode *pMnode, char *acct, SCreateUserReq *pCreate
   userObj.updateTime = userObj.createdTime;
   userObj.superUser = pCreate->superUser;
 
-  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK,TRN_TYPE_CREATE_USER, &pReq->rpcMsg);
+  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_TYPE_CREATE_USER, &pReq->rpcMsg);
   if (pTrans == NULL) {
     mError("user:%s, failed to create since %s", pCreate->user, terrstr());
     return -1;
@@ -350,7 +350,7 @@ CREATE_USER_OVER:
 }
 
 static int32_t mndUpdateUser(SMnode *pMnode, SUserObj *pOld, SUserObj *pNew, SNodeMsg *pReq) {
-  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_TYPE_ALTER_USER,&pReq->rpcMsg);
+  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_TYPE_ALTER_USER, &pReq->rpcMsg);
   if (pTrans == NULL) {
     mError("user:%s, failed to update since %s", pOld->user, terrstr());
     return -1;
@@ -511,7 +511,7 @@ ALTER_USER_OVER:
 }
 
 static int32_t mndDropUser(SMnode *pMnode, SNodeMsg *pReq, SUserObj *pUser) {
-  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK,TRN_TYPE_DROP_USER, &pReq->rpcMsg);
+  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_TYPE_DROP_USER, &pReq->rpcMsg);
   if (pTrans == NULL) {
     mError("user:%s, failed to drop since %s", pUser->user, terrstr());
     return -1;
diff --git a/source/dnode/vnode/src/inc/vnd.h b/source/dnode/vnode/src/inc/vnd.h
index 8d256995c6..7b0606512c 100644
--- a/source/dnode/vnode/src/inc/vnd.h
+++ b/source/dnode/vnode/src/inc/vnd.h
@@ -198,10 +198,13 @@ int tqCommit(STQ*);
 int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg);
 int32_t tqProcessSetConnReq(STQ* pTq, char* msg);
 int32_t tqProcessRebReq(STQ* pTq, char* msg);
-int32_t tqProcessTaskExec(STQ* pTq, SRpcMsg* msg);
+int32_t tqProcessTaskExec(STQ* pTq, char* msg, int32_t msgLen);
 int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen);
 int32_t tqProcessStreamTrigger(STQ* pTq, void* data, int32_t dataLen);
 
+// sma
+void smaHandleRes(SVnode* pVnode, int64_t smaId, const SArray* data);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 91cbc2cff8..55202335e0 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -42,8 +42,8 @@ STQ* tqOpen(const char* path, SVnode* pVnode, SWal* pWal, SMeta* pVnodeMeta, STq
     // TODO: error code of buffer pool
   }
 #endif
-  pTq->tqMeta =
-      tqStoreOpen(pTq, path, (FTqSerialize)tqSerializeConsumer, (FTqDeserialize)tqDeserializeConsumer, (FTqDelete)taosMemoryFree, 0);
+  pTq->tqMeta = tqStoreOpen(pTq, path, (FTqSerialize)tqSerializeConsumer, (FTqDeserialize)tqDeserializeConsumer,
+                            (FTqDelete)taosMemoryFree, 0);
   if (pTq->tqMeta == NULL) {
     taosMemoryFree(pTq);
 #if 0
@@ -476,6 +476,7 @@ int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen) {
   if (tqExpandTask(pTq, pTask, 4) < 0) {
     ASSERT(0);
   }
+  pTask->ahandle = pTq->pVnode;
 
   taosHashPut(pTq->pStreamTasks, &pTask->taskId, sizeof(int32_t), pTask, sizeof(SStreamTask));
 
@@ -497,13 +498,15 @@ int32_t tqProcessStreamTrigger(STQ* pTq, void* data, int32_t dataLen) {
   return 0;
 }
 
-int32_t tqProcessTaskExec(STQ* pTq, SRpcMsg* msg) {
-  SStreamTaskExecReq* pReq = msg->pCont;
-  int32_t             taskId = pReq->taskId;
-  SStreamTask*        pTask = taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
+int32_t tqProcessTaskExec(STQ* pTq, char* msg, int32_t msgLen) {
+  SStreamTaskExecReq req;
+  tDecodeSStreamTaskExecReq(msg, &req);
+
+  int32_t      taskId = req.taskId;
+  SStreamTask* pTask = taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
   ASSERT(pTask);
 
-  if (streamExecTask(pTask, &pTq->pVnode->msgCb, pReq->data, STREAM_DATA_TYPE_SSDATA_BLOCK, 0) < 0) {
+  if (streamExecTask(pTask, &pTq->pVnode->msgCb, req.data, STREAM_DATA_TYPE_SSDATA_BLOCK, 0) < 0) {
     // TODO
   }
   return 0;
diff --git a/source/dnode/vnode/src/vnd/vnodeQuery.c b/source/dnode/vnode/src/vnd/vnodeQuery.c
index 1db17f37cb..74d7558e0d 100644
--- a/source/dnode/vnode/src/vnd/vnodeQuery.c
+++ b/source/dnode/vnode/src/vnd/vnodeQuery.c
@@ -43,6 +43,8 @@ int vnodeProcessQueryMsg(SVnode *pVnode, SRpcMsg *pMsg) {
 
 int vnodeProcessFetchMsg(SVnode *pVnode, SRpcMsg *pMsg) {
   vTrace("message in fetch queue is processing");
+  char   *msgstr = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
+  int32_t msgLen = pMsg->contLen - sizeof(SMsgHead);
   switch (pMsg->msgType) {
     case TDMT_VND_FETCH:
       return qWorkerProcessFetchMsg(pVnode, pVnode->pQuery, pMsg);
@@ -65,8 +67,9 @@ int vnodeProcessFetchMsg(SVnode *pVnode, SRpcMsg *pMsg) {
       return vnodeGetTableMeta(pVnode, pMsg);
     case TDMT_VND_CONSUME:
       return tqProcessPollReq(pVnode->pTq, pMsg);
-    case TDMT_VND_TASK_EXEC:
-      return tqProcessTaskExec(pVnode->pTq, pMsg);
+    case TDMT_VND_TASK_PIPE_EXEC:
+    case TDMT_VND_TASK_MERGE_EXEC:
+      return tqProcessTaskExec(pVnode->pTq, msgstr, msgLen);
     case TDMT_VND_STREAM_TRIGGER:
       return tqProcessStreamTrigger(pVnode->pTq, pMsg->pCont, pMsg->contLen);
     case TDMT_VND_QUERY_HEARTBEAT:
diff --git a/source/dnode/vnode/src/vnd/vnodeWrite.c b/source/dnode/vnode/src/vnd/vnodeWrite.c
index 94cbe776bc..a232a357c9 100644
--- a/source/dnode/vnode/src/vnd/vnodeWrite.c
+++ b/source/dnode/vnode/src/vnd/vnodeWrite.c
@@ -178,6 +178,11 @@ int vnodeApplyWMsg(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp) {
                               pMsg->contLen - sizeof(SMsgHead)) < 0) {
       }
     } break;
+    case TDMT_VND_TASK_WRITE_EXEC: {
+      if (tqProcessTaskExec(pVnode->pTq, POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead)),
+                            pMsg->contLen - sizeof(SMsgHead)) < 0) {
+      }
+    } break;
     case TDMT_VND_CREATE_SMA: {  // timeRangeSMA
 #if 1
       
diff --git a/source/libs/stream/src/tstream.c b/source/libs/stream/src/tstream.c
index 3ec6603673..028e310a25 100644
--- a/source/libs/stream/src/tstream.c
+++ b/source/libs/stream/src/tstream.c
@@ -72,6 +72,7 @@ int32_t streamExecTask(SStreamTask* pTask, SMsgCb* pMsgCb, const void* input, in
   if (pTask->sinkType == TASK_SINK__TABLE) {
     //
   } else if (pTask->sinkType == TASK_SINK__SMA) {
+    pTask->smaSink.smaHandle(pTask->ahandle, pTask->smaSink.smaId, pRes);
     //
   } else if (pTask->sinkType == TASK_SINK__FETCH) {
     //
@@ -121,7 +122,7 @@ int32_t streamExecTask(SStreamTask* pTask, SMsgCb* pMsgCb, const void* input, in
   } else if (pTask->dispatchType == TASK_DISPATCH__FIXED) {
     SStreamTaskExecReq req = {
         .streamId = pTask->streamId,
-        .taskId = pTask->taskId,
+        .taskId = pTask->fixedEpDispatcher.taskId,
         .data = pRes,
     };
 
@@ -205,14 +206,22 @@ int32_t tEncodeSStreamTask(SCoder* pEncoder, const SStreamTask* pTask) {
     if (tEncodeCStr(pEncoder, pTask->exec.qmsg) < 0) return -1;
   }
 
-  if (pTask->sinkType != TASK_SINK__NONE) {
-    // TODO: wrap
+  if (pTask->sinkType == TASK_SINK__TABLE) {
     if (tEncodeI8(pEncoder, pTask->tbSink.reserved) < 0) return -1;
+  } else if (pTask->sinkType == TASK_SINK__SMA) {
+    if (tEncodeI64(pEncoder, pTask->smaSink.smaId) < 0) return -1;
+  } else if (pTask->sinkType == TASK_SINK__FETCH) {
+    if (tEncodeI8(pEncoder, pTask->fetchSink.reserved) < 0) return -1;
+  } else if (pTask->sinkType == TASK_SINK__SHOW) {
+    if (tEncodeI8(pEncoder, pTask->showSink.reserved) < 0) return -1;
+  } else {
+    ASSERT(pTask->sinkType == TASK_SINK__NONE);
   }
 
   if (pTask->dispatchType == TASK_DISPATCH__INPLACE) {
-    if (tEncodeI8(pEncoder, pTask->inplaceDispatcher.reserved) < 0) return -1;
+    if (tEncodeI32(pEncoder, pTask->inplaceDispatcher.taskId) < 0) return -1;
   } else if (pTask->dispatchType == TASK_DISPATCH__FIXED) {
+    if (tEncodeI32(pEncoder, pTask->fixedEpDispatcher.taskId) < 0) return -1;
     if (tEncodeI32(pEncoder, pTask->fixedEpDispatcher.nodeId) < 0) return -1;
     if (tEncodeSEpSet(pEncoder, &pTask->fixedEpDispatcher.epSet) < 0) return -1;
   } else if (pTask->dispatchType == TASK_DISPATCH__SHUFFLE) {
@@ -243,13 +252,22 @@ int32_t tDecodeSStreamTask(SCoder* pDecoder, SStreamTask* pTask) {
     if (tDecodeCStrAlloc(pDecoder, &pTask->exec.qmsg) < 0) return -1;
   }
 
-  if (pTask->sinkType != TASK_SINK__NONE) {
+  if (pTask->sinkType == TASK_SINK__TABLE) {
     if (tDecodeI8(pDecoder, &pTask->tbSink.reserved) < 0) return -1;
+  } else if (pTask->sinkType == TASK_SINK__SMA) {
+    if (tDecodeI64(pDecoder, &pTask->smaSink.smaId) < 0) return -1;
+  } else if (pTask->sinkType == TASK_SINK__FETCH) {
+    if (tDecodeI8(pDecoder, &pTask->fetchSink.reserved) < 0) return -1;
+  } else if (pTask->sinkType == TASK_SINK__SHOW) {
+    if (tDecodeI8(pDecoder, &pTask->showSink.reserved) < 0) return -1;
+  } else {
+    ASSERT(pTask->sinkType == TASK_SINK__NONE);
   }
 
   if (pTask->dispatchType == TASK_DISPATCH__INPLACE) {
-    if (tDecodeI8(pDecoder, &pTask->inplaceDispatcher.reserved) < 0) return -1;
+    if (tDecodeI32(pDecoder, &pTask->inplaceDispatcher.taskId) < 0) return -1;
   } else if (pTask->dispatchType == TASK_DISPATCH__FIXED) {
+    if (tDecodeI32(pDecoder, &pTask->fixedEpDispatcher.taskId) < 0) return -1;
     if (tDecodeI32(pDecoder, &pTask->fixedEpDispatcher.nodeId) < 0) return -1;
     if (tDecodeSEpSet(pDecoder, &pTask->fixedEpDispatcher.epSet) < 0) return -1;
   } else if (pTask->dispatchType == TASK_DISPATCH__SHUFFLE) {
diff --git a/source/libs/wal/src/walMeta.c b/source/libs/wal/src/walMeta.c
index 83c48628a3..36323cdffa 100644
--- a/source/libs/wal/src/walMeta.c
+++ b/source/libs/wal/src/walMeta.c
@@ -19,13 +19,13 @@
 #include "tref.h"
 #include "walInt.h"
 
-int64_t inline walGetFirstVer(SWal* pWal) { return pWal->vers.firstVer; }
+int64_t FORCE_INLINE walGetFirstVer(SWal* pWal) { return pWal->vers.firstVer; }
 
-int64_t inline walGetSnaphostVer(SWal* pWal) { return pWal->vers.snapshotVer; }
+int64_t FORCE_INLINE walGetSnaphostVer(SWal* pWal) { return pWal->vers.snapshotVer; }
 
-int64_t inline walGetLastVer(SWal* pWal) { return pWal->vers.lastVer; }
+int64_t FORCE_INLINE walGetLastVer(SWal* pWal) { return pWal->vers.lastVer; }
 
-static inline int walBuildMetaName(SWal* pWal, int metaVer, char* buf) {
+static FORCE_INLINE int walBuildMetaName(SWal* pWal, int metaVer, char* buf) {
   return sprintf(buf, "%s/meta-ver%d", pWal->path, metaVer);
 }
 
@@ -46,7 +46,7 @@ void* tmemmem(char* haystack, int hlen, char* needle, int nlen) {
   return NULL;
 }
 
-static inline int64_t walScanLogGetLastVer(SWal* pWal) {
+static FORCE_INLINE int64_t walScanLogGetLastVer(SWal* pWal) {
   ASSERT(pWal->fileInfoSet != NULL);
   int sz = taosArrayGetSize(pWal->fileInfoSet);
   ASSERT(sz > 0);
diff --git a/source/libs/wal/src/walSeek.c b/source/libs/wal/src/walSeek.c
index 140b7ddc32..413dcb47f0 100644
--- a/source/libs/wal/src/walSeek.c
+++ b/source/libs/wal/src/walSeek.c
@@ -74,9 +74,9 @@ int walSetWrite(SWal* pWal) {
 }
 
 int walChangeWrite(SWal* pWal, int64_t ver) {
-  int     code = 0;
+  int       code;
   TdFilePtr pIdxTFile, pLogTFile;
-  char    fnameStr[WAL_FILE_LEN];
+  char      fnameStr[WAL_FILE_LEN];
   if (pWal->pWriteLogTFile != NULL) {
     code = taosCloseFile(&pWal->pWriteLogTFile);
     if (code != 0) {
@@ -133,7 +133,6 @@ int walSeekWriteVer(SWal* pWal, int64_t ver) {
     return -1;
   }
   if (ver < pWal->vers.snapshotVer) {
-    
   }
   if (ver < walGetCurFileFirstVer(pWal) || (ver > walGetCurFileLastVer(pWal))) {
     code = walChangeWrite(pWal, ver);
diff --git a/source/util/src/tprocess.c b/source/util/src/tprocess.c
index 9e55df44cf..f5ce88179b 100644
--- a/source/util/src/tprocess.c
+++ b/source/util/src/tprocess.c
@@ -56,7 +56,6 @@ typedef struct SProcObj {
   int32_t     pid;
   bool        isChild;
   bool        stopFlag;
-  bool        testFlag;
 } SProcObj;
 
 static int32_t taosProcInitMutex(TdThreadMutex **ppMutex, int32_t *pShmid) {
@@ -77,7 +76,7 @@ static int32_t taosProcInitMutex(TdThreadMutex **ppMutex, int32_t *pShmid) {
     goto _OVER;
   }
 
-  shmid = shmget(IPC_PRIVATE, sizeof(TdThreadMutex), 0600);
+  shmid = shmget(IPC_PRIVATE, sizeof(TdThreadMutex), IPC_CREAT | 0600);
   if (shmid <= 0) {
     terrno = TAOS_SYSTEM_ERROR(errno);
     uError("failed to init mutex while shmget since %s", terrstr());
@@ -101,8 +100,13 @@ static int32_t taosProcInitMutex(TdThreadMutex **ppMutex, int32_t *pShmid) {
 
 _OVER:
   if (code != 0) {
-    taosThreadMutexDestroy(pMutex);
-    shmctl(shmid, IPC_RMID, NULL);
+    if (pMutex != NULL) {
+      taosThreadMutexDestroy(pMutex);
+      shmdt(pMutex);
+    }
+    if (shmid >= 0) {
+      shmctl(shmid, IPC_RMID, NULL);
+    }
   } else {
     *ppMutex = pMutex;
     *pShmid = shmid;
@@ -112,12 +116,12 @@ _OVER:
   return code;
 }
 
-static void taosProcDestroyMutex(TdThreadMutex *pMutex, int32_t *pShmid) {
+static void taosProcDestroyMutex(TdThreadMutex *pMutex, int32_t shmid) {
   if (pMutex != NULL) {
     taosThreadMutexDestroy(pMutex);
   }
-  if (*pShmid > 0) {
-    shmctl(*pShmid, IPC_RMID, NULL);
+  if (shmid >= 0) {
+    shmctl(shmid, IPC_RMID, NULL);
   }
 }
 
@@ -141,13 +145,14 @@ static int32_t taosProcInitBuffer(void **ppBuffer, int32_t size) {
   return shmid;
 }
 
-static void taosProcDestroyBuffer(void *pBuffer, int32_t *pShmid) {
-  if (*pShmid > 0) {
-    shmctl(*pShmid, IPC_RMID, NULL);
+static void taosProcDestroyBuffer(void *pBuffer, int32_t shmid) {
+  if (shmid > 0) {
+    shmdt(pBuffer);
+    shmctl(shmid, IPC_RMID, NULL);
   }
 }
 
-static SProcQueue *taosProcQueueInit(int32_t size) {
+static SProcQueue *taosProcInitQueue(int32_t size) {
   if (size <= 0) size = SHM_DEFAULT_SIZE;
 
   int32_t bufSize = CEIL8(size);
@@ -155,29 +160,28 @@ static SProcQueue *taosProcQueueInit(int32_t size) {
 
   SProcQueue *pQueue = NULL;
   int32_t     shmId = taosProcInitBuffer((void **)&pQueue, bufSize + headSize);
-  if (shmId <= 0) {
+  if (shmId < 0) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     return NULL;
   }
-
   pQueue->bufferShmid = shmId;
 
   if (taosProcInitMutex(&pQueue->mutex, &pQueue->mutexShmid) != 0) {
-    taosMemoryFree(pQueue);
+    taosProcDestroyBuffer(pQueue, pQueue->bufferShmid);
     return NULL;
   }
 
   if (tsem_init(&pQueue->sem, 1, 0) != 0) {
-    taosProcDestroyMutex(pQueue->mutex, &pQueue->mutexShmid);
-    taosMemoryFree(pQueue);
+    taosProcDestroyMutex(pQueue->mutex, pQueue->mutexShmid);
+    taosProcDestroyBuffer(pQueue, pQueue->bufferShmid);
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     return NULL;
   }
 
   if (taosProcInitMutex(&pQueue->mutex, &pQueue->mutexShmid) != 0) {
-    taosProcDestroyMutex(pQueue->mutex, &pQueue->mutexShmid);
     tsem_destroy(&pQueue->sem);
-    taosMemoryFree(pQueue);
+    taosProcDestroyMutex(pQueue->mutex, pQueue->mutexShmid);
+    taosProcDestroyBuffer(pQueue, pQueue->bufferShmid);
     return NULL;
   }
 
@@ -190,12 +194,12 @@ static SProcQueue *taosProcQueueInit(int32_t size) {
   return pQueue;
 }
 
-static void taosProcQueueCleanup(SProcQueue *pQueue) {
+static void taosProcCleanupQueue(SProcQueue *pQueue) {
   if (pQueue != NULL) {
     uDebug("proc:%s, queue:%p clean up", pQueue->name, pQueue);
-    taosProcDestroyMutex(pQueue->mutex, &pQueue->mutexShmid);
     tsem_destroy(&pQueue->sem);
-    taosMemoryFree(pQueue);
+    taosProcDestroyMutex(pQueue->mutex, pQueue->mutexShmid);
+    taosProcDestroyBuffer(pQueue, pQueue->bufferShmid);
   }
 }
 
@@ -204,6 +208,11 @@ static int32_t taosProcQueuePush(SProcQueue *pQueue, char *pHead, int32_t rawHea
   const int32_t bodyLen = CEIL8(rawBodyLen);
   const int32_t fullLen = headLen + bodyLen + 8;
 
+  if (headLen <= 0 || bodyLen <= 0) {
+    terrno = TSDB_CODE_INVALID_PARA;
+    return -1;
+  }
+
   taosThreadMutexLock(pQueue->mutex);
   if (fullLen > pQueue->avail) {
     taosThreadMutexUnlock(pQueue->mutex);
@@ -255,7 +264,7 @@ static int32_t taosProcQueuePush(SProcQueue *pQueue, char *pHead, int32_t rawHea
   taosThreadMutexUnlock(pQueue->mutex);
   tsem_post(&pQueue->sem);
 
-  uTrace("proc:%s, push msg:%p:%d cont:%p:%d to queue:%p", pQueue->name, pHead, rawHeadLen, pBody, rawBodyLen, pQueue);
+  uTrace("proc:%s, push msg:%p:%d cont:%p:%d to queue:%p", pQueue->name, pHead, headLen, pBody, bodyLen, pQueue);
   return 0;
 }
 
@@ -344,12 +353,10 @@ SProcObj *taosProcInit(const SProcCfg *pCfg) {
   }
 
   pProc->name = pCfg->name;
-  pProc->testFlag = pCfg->testFlag;
-
-  pProc->pChildQueue = taosProcQueueInit(pCfg->childQueueSize);
-  pProc->pParentQueue = taosProcQueueInit(pCfg->parentQueueSize);
+  pProc->pChildQueue = taosProcInitQueue(pCfg->childQueueSize);
+  pProc->pParentQueue = taosProcInitQueue(pCfg->parentQueueSize);
   if (pProc->pChildQueue == NULL || pProc->pParentQueue == NULL) {
-    taosProcQueueCleanup(pProc->pChildQueue);
+    taosProcCleanupQueue(pProc->pChildQueue);
     taosMemoryFree(pProc);
     return NULL;
   }
@@ -369,17 +376,15 @@ SProcObj *taosProcInit(const SProcCfg *pCfg) {
   pProc->pParentQueue->freeBodyFp = pCfg->parentFreeBodyFp;
   pProc->pParentQueue->consumeFp = pCfg->parentConsumeFp;
 
-  uDebug("proc:%s, initialized, child queue:%p parent queue:%p", pProc->name, pProc->pChildQueue, pProc->pParentQueue);
+  uDebug("proc:%s, is initialized, child queue:%p parent queue:%p", pProc->name, pProc->pChildQueue, pProc->pParentQueue);
 
-  if (!pProc->testFlag) {
-    pProc->pid = fork();
-    if (pProc->pid == 0) {
-      pProc->isChild = 1;
-      uInfo("this is child process, pid:%d", pProc->pid);
-    } else {
-      pProc->isChild = 0;
-      uInfo("this is parent process, pid:%d", pProc->pid);
-    }
+  pProc->pid = fork();
+  if (pProc->pid == 0) {
+    pProc->isChild = 1;
+    prctl(PR_SET_NAME, pProc->name, NULL, NULL, NULL); 
+  } else {
+    pProc->isChild = 0;
+    uInfo("this is parent process, child pid:%d", pProc->pid);
   }
 
   return pProc;
@@ -398,7 +403,7 @@ static void taosProcThreadLoop(SProcQueue *pQueue) {
     if (code < 0) {
       uDebug("proc:%s, get no message from queue:%p and exiting", pQueue->name, pQueue);
       break;
-    } else if (code < 0) {
+    } else if (code == 0) {
       uTrace("proc:%s, get no message from queue:%p since %s", pQueue->name, pQueue, terrstr());
       taosMsleep(1);
       continue;
@@ -413,16 +418,14 @@ int32_t taosProcRun(SProcObj *pProc) {
   taosThreadAttrInit(&thAttr);
   taosThreadAttrSetDetachState(&thAttr, PTHREAD_CREATE_JOINABLE);
 
-  if (pProc->isChild || pProc->testFlag) {
+  if (pProc->isChild) {
     if (taosThreadCreate(&pProc->childThread, &thAttr, (ProcThreadFp)taosProcThreadLoop, pProc->pChildQueue) != 0) {
       terrno = TAOS_SYSTEM_ERROR(errno);
       uError("failed to create thread since %s", terrstr());
       return -1;
     }
     uDebug("proc:%s, child start to consume queue:%p", pProc->name, pProc->pChildQueue);
-  }
-
-  if (!pProc->isChild || pProc->testFlag) {
+  } else {
     if (taosThreadCreate(&pProc->parentThread, &thAttr, (ProcThreadFp)taosProcThreadLoop, pProc->pParentQueue) != 0) {
       terrno = TAOS_SYSTEM_ERROR(errno);
       uError("failed to create thread since %s", terrstr());
@@ -441,12 +444,14 @@ void taosProcStop(SProcObj *pProc) {
 
 bool taosProcIsChild(SProcObj *pProc) { return pProc->isChild; }
 
+int32_t taosProcChildId(SProcObj *pProc) { return pProc->pid; }
+
 void taosProcCleanup(SProcObj *pProc) {
   if (pProc != NULL) {
     uDebug("proc:%s, clean up", pProc->name);
     taosProcStop(pProc);
-    taosProcQueueCleanup(pProc->pChildQueue);
-    taosProcQueueCleanup(pProc->pParentQueue);
+    taosProcCleanupQueue(pProc->pChildQueue);
+    taosProcCleanupQueue(pProc->pParentQueue);
     taosMemoryFree(pProc);
   }
 }
diff --git a/tests/script/tsim/tmq/basic.sim b/tests/script/tsim/tmq/basic.sim
index 876cf7e266..1eeec46d53 100644
--- a/tests/script/tsim/tmq/basic.sim
+++ b/tests/script/tsim/tmq/basic.sim
@@ -45,7 +45,7 @@ print cmd===> system_content ../../debug/tests/test/c/tmq_demo -sim 1 -b 100 -c
 system_content ../../debug/tests/test/c/tmq_demo -sim 1 -b 100 -c ../../sim/tsim/cfg -w ../../sim/dnode1/data/vnode/vnode4/wal
 print cmd result----> $system_content
 if $system_content != @{consume success: 100}@ then
-  print not match in pos000
+  return -1
 endi
 
 sql show databases
diff --git a/tests/test/c/tmqDemo.c b/tests/test/c/tmqDemo.c
index 1690a5fb3e..2618984f51 100644
--- a/tests/test/c/tmqDemo.c
+++ b/tests/test/c/tmqDemo.c
@@ -314,7 +314,7 @@ int32_t init_env() {
   }
 
   //const char* sql = "select * from tu1";
-  sprintf(sqlStr, "create topic test_stb_topic_1 as select * from %s0", g_stConfInfo.stbName);
+  sprintf(sqlStr, "create topic test_stb_topic_1 as select ts,c0 from %s", g_stConfInfo.stbName);
   /*pRes = tmq_create_topic(pConn, "test_stb_topic_1", sqlStr, strlen(sqlStr));*/
   pRes = taos_query(pConn, sqlStr);
   if (taos_errno(pRes) != 0) {
@@ -351,36 +351,6 @@ tmq_list_t* build_topic_list() {
   return topic_list;
 }
 
-void basic_consume_loop(tmq_t* tmq, tmq_list_t* topics) {
-  tmq_resp_err_t err;
-
-  if ((err = tmq_subscribe(tmq, topics))) {
-    fprintf(stderr, "%% Failed to start consuming topics: %s\n", tmq_err2str(err));
-    printf("subscribe err\n");
-    return;
-  }
-  int32_t cnt = 0;
-  /*clock_t startTime = clock();*/
-  while (running) {
-    tmq_message_t* tmqmessage = tmq_consumer_poll(tmq, 1);
-    if (tmqmessage) {
-      cnt++;
-      msg_process(tmqmessage);
-      tmq_message_destroy(tmqmessage);
-      /*} else {*/
-      /*break;*/
-    }
-  }
-  /*clock_t endTime = clock();*/
-  /*printf("log cnt: %d %f s\n", cnt, (double)(endTime - startTime) / CLOCKS_PER_SEC);*/
-
-  err = tmq_consumer_close(tmq);
-  if (err)
-    fprintf(stderr, "%% Failed to close consumer: %s\n", tmq_err2str(err));
-  else
-    fprintf(stderr, "%% Consumer closed\n");
-}
-
 void sync_consume_loop(tmq_t* tmq, tmq_list_t* topics) {
   static const int MIN_COMMIT_COUNT = 1000;
 
@@ -438,7 +408,7 @@ void perf_loop(tmq_t* tmq, tmq_list_t* topics, int32_t totalMsgs, int64_t walLog
 
   if (batchCnt != totalMsgs) {
 	printf("%s inserted msgs: %d and consume msgs: %d mismatch %s", GREEN, totalMsgs, batchCnt, NC);
-	exit(-1);
+	/*exit(-1);*/
   }
 
   if (0 == g_stConfInfo.simCase) {
@@ -691,12 +661,13 @@ int main(int32_t argc, char *argv[]) {
 	float	rowsSpeed   = totalRows / seconds;	
 	float	msgsSpeed   = totalMsgs / seconds;
 	
-	walLogSize = getDirectorySize(g_stConfInfo.vnodeWalPath);
-	if (walLogSize <= 0) {
-	  printf("vnode2/wal size incorrect!");
-		/*exit(-1);*/
-	} else {
-	  if (0 == g_stConfInfo.simCase) {	
+
+	if (0 == g_stConfInfo.simCase) {
+	  walLogSize = getDirectorySize(g_stConfInfo.vnodeWalPath);
+	  if (walLogSize <= 0) {
+	    printf("%s size incorrect!", g_stConfInfo.vnodeWalPath);
+	    exit(-1);
+	  } else {
 	    pPrint(".log file size in vnode2/wal: %.3f MBytes\n", (double)walLogSize/(1024 * 1024.0));
 	  }
 	}