diff --git a/source/dnode/vnode/src/inc/tq.h b/source/dnode/vnode/src/inc/tq.h
index e431ca4a012ef132dd7203e21a2ab77175a1caf7..b2223f9d642ceac3f1e0ec0c3fab6a4a7908d6c8 100644
--- a/source/dnode/vnode/src/inc/tq.h
+++ b/source/dnode/vnode/src/inc/tq.h
@@ -102,6 +102,7 @@ typedef struct {
   STqExecHandle execHandle;    // exec
   SRpcMsg*      msg;
   int32_t       noDataPollCnt;
+  int8_t        sendRsp;
 } STqHandle;
 
 typedef struct {
diff --git a/source/dnode/vnode/src/tq/tqPush.c b/source/dnode/vnode/src/tq/tqPush.c
index 950c5ea96b1434b0f93c3bfcd02f8e5c5d96a01e..85fcb4fd8025a026c0955457d707e72f22cbd615 100644
--- a/source/dnode/vnode/src/tq/tqPush.c
+++ b/source/dnode/vnode/src/tq/tqPush.c
@@ -55,6 +55,7 @@ int32_t tqRegisterPushHandle(STQ* pTq, void* handle, SRpcMsg* pMsg) {
     memcpy(pHandle->msg, pMsg, sizeof(SRpcMsg));
     pHandle->msg->pCont = rpcMallocCont(pMsg->contLen);
   } else {
+    tqPushDataRsp(pTq, pHandle);
     void* tmp = pHandle->msg->pCont;
     memcpy(pHandle->msg, pMsg, sizeof(SRpcMsg));
     pHandle->msg->pCont = tmp;
diff --git a/source/dnode/vnode/src/tq/tqUtil.c b/source/dnode/vnode/src/tq/tqUtil.c
index 94803ef438cf3071a91fd045f9674e5427098adb..128f83bf53d545bedaf5eb01cfd7d1a7e8bc80a4 100644
--- a/source/dnode/vnode/src/tq/tqUtil.c
+++ b/source/dnode/vnode/src/tq/tqUtil.c
@@ -162,6 +162,10 @@ static int32_t extractResetOffsetVal(STqOffsetVal* pOffsetVal, STQ* pTq, STqHand
   return 0;
 }
 
+static bool isHandleExecuting(STqHandle* pHandle){
+  return 0 == atomic_load_8(&pHandle->sendRsp);
+}
+
 static int32_t extractDataAndRspForNormalSubscribe(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest,
                                                    SRpcMsg* pMsg, STqOffsetVal* pOffset) {
   uint64_t consumerId = pRequest->consumerId;
@@ -177,6 +181,12 @@ static int32_t extractDataAndRspForNormalSubscribe(STQ* pTq, STqHandle* pHandle,
     return code;
   }
 
+  while(isHandleExecuting(pHandle)){
+    tqInfo("sub is executing, pHandle:%p", pHandle);
+    taosMsleep(5);
+  }
+  atomic_store_8(&pHandle->sendRsp, 0);
+
   qSetTaskId(pHandle->execHandle.task, consumerId, pRequest->reqId);
   code = tqScanData(pTq, pHandle, &dataRsp, pOffset);
   if(code != 0) {
@@ -193,6 +203,7 @@ static int32_t extractDataAndRspForNormalSubscribe(STQ* pTq, STqHandle* pHandle,
       code = tqRegisterPushHandle(pTq, pHandle, pMsg);
       taosWUnLockLatch(&pTq->lock);
       tDeleteSMqDataRsp(&dataRsp);
+      atomic_store_8(&pHandle->sendRsp, 1);
       return code;
     }
     else{
@@ -202,7 +213,6 @@ static int32_t extractDataAndRspForNormalSubscribe(STQ* pTq, STqHandle* pHandle,
 
 
   code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&dataRsp, TMQ_MSG_TYPE__POLL_RSP);
-
   // NOTE: this pHandle->consumerId may have been changed already.
 
   end:
@@ -214,12 +224,14 @@ static int32_t extractDataAndRspForNormalSubscribe(STQ* pTq, STqHandle* pHandle,
 //    taosWUnLockLatch(&pTq->lock);
     tDeleteSMqDataRsp(&dataRsp);
   }
+  atomic_store_8(&pHandle->sendRsp, 1);
+
   return code;
 }
 
 
 static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest, SRpcMsg* pMsg, STqOffsetVal *offset) {
-  int code = 0;
+  int          code = 0;
   int32_t      vgId = TD_VID(pTq->pVnode);
   SWalCkHead*  pCkHead = NULL;
   SMqMetaRsp metaRsp = {0};
@@ -232,10 +244,16 @@ static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle,
     return code;
   }
 
+  while(isHandleExecuting(pHandle)){
+    tqInfo("sub is executing, pHandle:%p", pHandle);
+    taosMsleep(5);
+  }
+  atomic_store_8(&pHandle->sendRsp, 0);
+
   if (offset->type != TMQ_OFFSET__LOG) {
     if (tqScanTaosx(pTq, pHandle, &taosxRsp, &metaRsp, offset) < 0) {
-      tDeleteSTaosxRsp(&taosxRsp);
-      return -1;
+      code = -1;
+      goto end;
     }
 
     if (metaRsp.metaRspLen > 0) {
@@ -243,16 +261,14 @@ static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle,
       tqDebug("tmq poll: consumer:0x%" PRIx64 " subkey:%s vgId:%d, send meta offset type:%d,uid:%" PRId64 ",ts:%" PRId64,
               pRequest->consumerId, pHandle->subKey, vgId, metaRsp.rspOffset.type, metaRsp.rspOffset.uid, metaRsp.rspOffset.ts);
       taosMemoryFree(metaRsp.metaRsp);
-      tDeleteSTaosxRsp(&taosxRsp);
-      return code;
+      goto end;
     }
 
     tqDebug("taosx poll: consumer:0x%" PRIx64 " subkey:%s vgId:%d, send data blockNum:%d, offset type:%d,uid:%" PRId64
                 ",ts:%" PRId64,pRequest->consumerId, pHandle->subKey, vgId, taosxRsp.blockNum, taosxRsp.rspOffset.type, taosxRsp.rspOffset.uid,taosxRsp.rspOffset.ts);
     if (taosxRsp.blockNum > 0) {
       code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
-      tDeleteSTaosxRsp(&taosxRsp);
-      return code;
+      goto end;
     }else {
       *offset = taosxRsp.rspOffset;
     }
@@ -264,9 +280,9 @@ static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle,
     int64_t fetchVer = offset->version + 1;
     pCkHead = taosMemoryMalloc(sizeof(SWalCkHead) + 2048);
     if (pCkHead == NULL) {
-      tDeleteSTaosxRsp(&taosxRsp);
       terrno = TSDB_CODE_OUT_OF_MEMORY;
-      return -1;
+      code = -1;
+      goto end;
     }
     walSetReaderCapacity(pHandle->pWalReader, 2048);
     int totalRows = 0;
@@ -281,9 +297,7 @@ static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle,
       if (tqFetchLog(pTq, pHandle, &fetchVer, &pCkHead, pRequest->reqId) < 0) {
         tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer);
         code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
-        tDeleteSTaosxRsp(&taosxRsp);
-        taosMemoryFreeClear(pCkHead);
-        return code;
+        goto end;
       }
 
       SWalCont* pHead = &pCkHead->head;
@@ -295,9 +309,7 @@ static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle,
         if(totalRows > 0) {
           tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer - 1);
           code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
-          tDeleteSTaosxRsp(&taosxRsp);
-          taosMemoryFreeClear(pCkHead);
-          return code;
+          goto end;
         }
 
         tqDebug("fetch meta msg, ver:%" PRId64 ", type:%s", pHead->version, TMSG_INFO(pHead->msgType));
@@ -305,17 +317,8 @@ static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle,
         metaRsp.resMsgType = pHead->msgType;
         metaRsp.metaRspLen = pHead->bodyLen;
         metaRsp.metaRsp = pHead->body;
-        if (tqSendMetaPollRsp(pTq, pMsg, pRequest, &metaRsp) < 0) {
-          code = -1;
-          taosMemoryFreeClear(pCkHead);
-          tDeleteSTaosxRsp(&taosxRsp);
-          return code;
-        }
-
-        code = 0;
-        taosMemoryFreeClear(pCkHead);
-        tDeleteSTaosxRsp(&taosxRsp);
-        return code;
+        code = tqSendMetaPollRsp(pTq, pMsg, pRequest, &metaRsp);
+        goto end;
       }
 
       // process data
@@ -325,29 +328,28 @@ static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle,
           .ver = pHead->version,
       };
 
-      if (tqTaosxScanLog(pTq, pHandle, submit, &taosxRsp, &totalRows) < 0) {
-        tqError("tmq poll: tqTaosxScanLog error %" PRId64 ", in vgId:%d, subkey %s", pRequest->consumerId, vgId,
-                pRequest->subKey);
-        taosMemoryFreeClear(pCkHead);
-        tDeleteSTaosxRsp(&taosxRsp);
-        return -1;
+      code = tqTaosxScanLog(pTq, pHandle, submit, &taosxRsp, &totalRows);
+      if (code < 0) {
+        tqError("tmq poll: tqTaosxScanLog error %" PRId64 ", in vgId:%d, subkey %s", pRequest->consumerId, vgId, pRequest->subKey);
+        goto end;
       }
 
       if (totalRows >= 4096 || taosxRsp.createTableNum > 0) {
         tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer);
         code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
-        tDeleteSTaosxRsp(&taosxRsp);
-        taosMemoryFreeClear(pCkHead);
-        return code;
+        goto end;
       } else {
         fetchVer++;
       }
     }
   }
 
+end:
+  atomic_store_8(&pHandle->sendRsp, 1);
+
   tDeleteSTaosxRsp(&taosxRsp);
   taosMemoryFreeClear(pCkHead);
-  return 0;
+  return code;
 }
 
 int32_t tqExtractDataForMq(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest, SRpcMsg* pMsg) {