diff --git a/src/system/detail/src/vnodeShell.c b/src/system/detail/src/vnodeShell.c
index b1a9dbd3ef839bc0209cf27702f07924a5aa729c..8d33b4350363e4ed9dc0ae8d75ae261dd788f8d5 100644
--- a/src/system/detail/src/vnodeShell.c
+++ b/src/system/detail/src/vnodeShell.c
@@ -39,7 +39,7 @@ SShellObj **shellList = NULL;
 int vnodeProcessRetrieveRequest(char *pMsg, int msgLen, SShellObj *pObj);
 int vnodeProcessQueryRequest(char *pMsg, int msgLen, SShellObj *pObj);
 int vnodeProcessShellSubmitRequest(char *pMsg, int msgLen, SShellObj *pObj);
-static void vnodeProcessBatchImportTimer(void *param, void *tmrId);
+static void vnodeProcessBatchSubmitTimer(void *param, void *tmrId);
 
 int vnodeSelectReqNum = 0;
 int vnodeInsertReqNum = 0;
@@ -523,6 +523,52 @@ static int vnodeCheckSubmitBlockContext(SShellSubmitBlock *pBlocks, SVnodeObj *p
   return TSDB_CODE_SUCCESS;
 }
 
+static int vnodeDoSubmitJob(SVnodeObj *pVnode, int import, int32_t *ssid, int32_t esid, SShellSubmitBlock **ppBlocks,
+                            TSKEY now, SShellObj *pObj) {
+  SShellSubmitBlock *pBlocks = *ppBlocks;
+  int code = TSDB_CODE_SUCCESS;
+  int32_t numOfPoints = 0;
+  int32_t i = 0;
+
+  for (i = *ssid; i < esid; i++) {
+    numOfPoints = 0;
+
+    code = vnodeCheckSubmitBlockContext(pBlocks, pVnode);
+    if (code != TSDB_CODE_SUCCESS) break;
+
+    SMeterObj *pMeterObj = (SMeterObj *)(pVnode->meterList[htonl(pBlocks->sid)]);
+
+    // dont include sid, vid
+    int32_t subMsgLen = sizeof(pBlocks->numOfRows) + htons(pBlocks->numOfRows) * pMeterObj->bytesPerPoint;
+    int32_t sversion = htonl(pBlocks->sversion);
+
+    if (import) {
+      code = vnodeImportPoints(pMeterObj, (char *)&(pBlocks->numOfRows), subMsgLen, TSDB_DATA_SOURCE_SHELL, pObj,
+                               sversion, &numOfPoints, now);
+      pObj->numOfTotalPoints += numOfPoints;
+
+      // records for one table should be consecutive located in the payload buffer, which is guaranteed by client
+      if (code == TSDB_CODE_SUCCESS) {
+        pObj->count--;
+      }
+    } else {
+      code = vnodeInsertPoints(pMeterObj, (char *)&(pBlocks->numOfRows), subMsgLen, TSDB_DATA_SOURCE_SHELL, NULL,
+                               sversion, &numOfPoints, now);
+      pObj->numOfTotalPoints += numOfPoints;
+    }
+
+    if (code != TSDB_CODE_SUCCESS) break;
+
+    pBlocks = (SShellSubmitBlock *)((char *)pBlocks + sizeof(SShellSubmitBlock) +
+                                    htons(pBlocks->numOfRows) * pMeterObj->bytesPerPoint);
+  }
+
+  *ssid = i;
+  *ppBlocks = pBlocks;
+
+  return code;
+}
+
 int vnodeProcessShellSubmitRequest(char *pMsg, int msgLen, SShellObj *pObj) {
   int              code = 0, ret = 0;
   int32_t          i = 0;
@@ -566,47 +612,13 @@ int vnodeProcessShellSubmitRequest(char *pMsg, int msgLen, SShellObj *pObj) {
 
   pObj->count = pSubmit->numOfSid;  // for import
   pObj->code = 0;                   // for import
-  pObj->numOfTotalPoints = 0;       // for import
+  pObj->numOfTotalPoints = 0;
 
-  int32_t numOfPoints = 0;
-  int32_t numOfTotalPoints = 0;
-  // We take current time here to avoid it in the for loop.
   TSKEY   now = taosGetTimestamp(pVnode->cfg.precision);
 
   pBlocks = (SShellSubmitBlock *)(pMsg + sizeof(SShellSubmitMsg));
-  for (i = 0; i < pSubmit->numOfSid; ++i) {
-    numOfPoints = 0;
-
-    code = vnodeCheckSubmitBlockContext(pBlocks, pVnode);
-    if (code != TSDB_CODE_SUCCESS) break;
-
-    SMeterObj *pMeterObj = (SMeterObj *)(pVnode->meterList[htonl(pBlocks->sid)]);
-    
-    // dont include sid, vid
-    int32_t subMsgLen = sizeof(pBlocks->numOfRows) + htons(pBlocks->numOfRows) * pMeterObj->bytesPerPoint;
-    int32_t sversion = htonl(pBlocks->sversion);
-
-    if (pSubmit->import) {
-      dTrace("start to import data");
-      code = vnodeImportPoints(pMeterObj, (char *) &(pBlocks->numOfRows), subMsgLen, TSDB_DATA_SOURCE_SHELL, pObj,
-                               sversion, &numOfPoints, now);
-      pObj->numOfTotalPoints += numOfPoints;
-      
-      //records for one table should be consecutive located in the payload buffer, which is guaranteed by client
-      if (code == TSDB_CODE_SUCCESS) {
-        pObj->count--;
-      }
-    } else {
-      code = vnodeInsertPoints(pMeterObj, (char *) &(pBlocks->numOfRows), subMsgLen, TSDB_DATA_SOURCE_SHELL, NULL,
-                               sversion, &numOfPoints, now);
-      numOfTotalPoints += numOfPoints;
-    }
-      
-    if (code != TSDB_CODE_SUCCESS) break;
-
-    pBlocks = (SShellSubmitBlock *)((char *)pBlocks + sizeof(SShellSubmitBlock) +
-                                    htons(pBlocks->numOfRows) * pMeterObj->bytesPerPoint);
-  }
+  i = 0;
+  code = vnodeDoSubmitJob(pVnode, pSubmit->import, &i, pSubmit->numOfSid, &pBlocks, now, pObj);
 
 _submit_over:
   ret = 0;
@@ -627,61 +639,42 @@ _submit_over:
         pSubmitInfo->offset = ((char *)pBlocks) - (pMsg + sizeof(SShellSubmitMsg));
         assert(pSubmitInfo->offset >= 0);
         memcpy((void *)(pSubmitInfo->blks), (void *)(pMsg + sizeof(SShellSubmitMsg)), msgLen - sizeof(SShellSubmitMsg));
-        taosTmrStart(vnodeProcessBatchImportTimer, 10, (void *)pSubmitInfo, vnodeTmrCtrl);
+        taosTmrStart(vnodeProcessBatchSubmitTimer, 10, (void *)pSubmitInfo, vnodeTmrCtrl);
       }
     } else {
       if (code == TSDB_CODE_SUCCESS) assert(pObj->count == 0);
       ret = vnodeSendShellSubmitRspMsg(pObj, code, pObj->numOfTotalPoints);
     }
   } else {  // Insert case
-    ret = vnodeSendShellSubmitRspMsg(pObj, code, numOfTotalPoints);
+    ret = vnodeSendShellSubmitRspMsg(pObj, code, pObj->numOfTotalPoints);
   }
 
   atomic_fetch_add_32(&vnodeInsertReqNum, 1);
   return ret;
 }
 
-static void vnodeProcessBatchImportTimer(void *param, void *tmrId) {
+static void vnodeProcessBatchSubmitTimer(void *param, void *tmrId) {
   SBatchSubmitInfo *pSubmitInfo = (SBatchSubmitInfo *)param;
   assert(pSubmitInfo != NULL && pSubmitInfo->import);
 
-  int32_t i = 0, numOfPoints = 0;
+  int32_t i = 0;
   int32_t code = TSDB_CODE_SUCCESS;
 
   SShellObj *        pShell = pSubmitInfo->pObj;
   SVnodeObj *        pVnode = &vnodeList[pSubmitInfo->vnode];
   SShellSubmitBlock *pBlocks = (SShellSubmitBlock *)(pSubmitInfo->blks + pSubmitInfo->offset);
   TSKEY   now = taosGetTimestamp(pVnode->cfg.precision);
+  i = pSubmitInfo->ssid;
 
-  for (i = pSubmitInfo->ssid; i < pSubmitInfo->numOfSid; i++) {
-    numOfPoints = 0;
-
-    code = vnodeCheckSubmitBlockContext(pBlocks, pVnode);
-    if (code != TSDB_CODE_SUCCESS) break;
-
-    SMeterObj *pMeterObj = (SMeterObj *)(pVnode->meterList[htonl(pBlocks->sid)]);
-    // dont include sid, vid
-    int32_t subMsgLen = sizeof(pBlocks->numOfRows) + htons(pBlocks->numOfRows) * pMeterObj->bytesPerPoint;
-    int32_t sversion = htonl(pBlocks->sversion);
-
-    code = vnodeImportPoints(pMeterObj, (char *)&(pBlocks->numOfRows), subMsgLen, TSDB_DATA_SOURCE_SHELL, pShell,
-                             sversion, &numOfPoints, now);
-    pShell->numOfTotalPoints += numOfPoints;
-    if (code != TSDB_CODE_SUCCESS) break;
-    pShell->count--;
-
-    pBlocks = (SShellSubmitBlock *)((char *)pBlocks + sizeof(SShellSubmitBlock) +
-                                    htons(pBlocks->numOfRows) * pMeterObj->bytesPerPoint);
-  }
+  code = vnodeDoSubmitJob(pVnode, pSubmitInfo->import, &i, pSubmitInfo->numOfSid, &pBlocks, now, pShell);
 
-  int ret = 0;
   if (code == TSDB_CODE_ACTION_IN_PROGRESS) {
     pSubmitInfo->ssid = i;
     pSubmitInfo->offset = ((char *)pBlocks) - pSubmitInfo->blks;
-    taosTmrStart(vnodeProcessBatchImportTimer, 10, (void *)pSubmitInfo, vnodeTmrCtrl);
+    taosTmrStart(vnodeProcessBatchSubmitTimer, 10, (void *)pSubmitInfo, vnodeTmrCtrl);
   } else {
     if (code == TSDB_CODE_SUCCESS) assert(pShell->count == 0);
     tfree(param);
-    ret = vnodeSendShellSubmitRspMsg(pShell, code, pShell->numOfTotalPoints);
+    vnodeSendShellSubmitRspMsg(pShell, code, pShell->numOfTotalPoints);
   }
 }