diff --git a/source/libs/scheduler/src/scheduler.c b/source/libs/scheduler/src/scheduler.c
index ccf0c58ac0..de295f77c6 100644
--- a/source/libs/scheduler/src/scheduler.c
+++ b/source/libs/scheduler/src/scheduler.c
@@ -66,7 +66,6 @@ void schFreeTask(SSchTask* pTask) {
     taosArrayDestroy(pTask->candidateAddrs);
   }
 
-  // TODO NEED TO VERFY WITH ASYNC_SEND MEMORY FREE
   tfree(pTask->msg); 
 
   if (pTask->children) {
@@ -97,7 +96,7 @@ int32_t schValidateTaskReceivedMsgType(SSchJob *pJob, SSchTask *pTask, int32_t m
         SCH_TASK_ELOG("rsp msg type mis-match, last sent msgType:%d, rspType:%d", lastMsgType, msgType);
         SCH_ERR_RET(TSDB_CODE_SCH_STATUS_ERROR);
       }
-      
+
       if (SCH_GET_TASK_STATUS(pTask) != JOB_TASK_STATUS_EXECUTING && SCH_GET_TASK_STATUS(pTask) != JOB_TASK_STATUS_PARTIAL_SUCCEED) {
         SCH_TASK_ELOG("rsp msg conflicted with task status, status:%d, rspType:%d", SCH_GET_TASK_STATUS(pTask), msgType);
         SCH_ERR_RET(TSDB_CODE_SCH_STATUS_ERROR);
@@ -868,8 +867,18 @@ int32_t schHandleResponseMsg(SSchJob *pJob, SSchTask *pTask, int32_t msgType, ch
           SCH_ERR_RET(schProcessOnTaskFailure(pJob, pTask, rspCode));
         }
 
+        if (pJob->res) {
+          SCH_TASK_ELOG("got fetch rsp while res already exists, res:%p", pJob->res);
+          tfree(rsp);
+          SCH_ERR_RET(TSDB_CODE_SCH_STATUS_ERROR);
+        }
+
         atomic_store_ptr(&pJob->res, rsp);
         atomic_store_32(&pJob->resNumOfRows, rsp->numOfRows);
+
+        if (rsp->completed) {
+          SCH_SET_TASK_STATUS(pTask, JOB_TASK_STATUS_SUCCEED);
+        }
         
         SCH_ERR_JRET(schProcessOnDataFetched(pJob));
         
@@ -1067,7 +1076,13 @@ int32_t schBuildAndSendMsg(SSchJob *pJob, SSchTask *pTask, SQueryNodeAddr *addr,
     case TDMT_VND_CREATE_TABLE:
     case TDMT_VND_SUBMIT: {
       msgSize = pTask->msgLen;
-      msg = pTask->msg;
+      msg = calloc(1, msgSize);
+      if (NULL == msg) {
+        SCH_TASK_ELOG("calloc %d failed", msgSize);
+        SCH_ERR_RET(TSDB_CODE_QRY_OUT_OF_MEMORY);
+      }
+
+      memcpy(msg, pTask->msg, msgSize);
       break;
     }
 
@@ -1549,29 +1564,24 @@ int32_t scheduleFetchRows(SSchJob *pJob, void** pData) {
   int8_t status = SCH_GET_JOB_STATUS(pJob);
   if (status == JOB_TASK_STATUS_DROPPING) {
     SCH_JOB_ELOG("job is dropping, status:%d", status);
-    atomic_sub_fetch_32(&pJob->ref, 1);
-    SCH_ERR_RET(TSDB_CODE_SCH_STATUS_ERROR);
+    SCH_ERR_JRET(TSDB_CODE_SCH_STATUS_ERROR);
   }
 
   if (!SCH_JOB_NEED_FETCH(&pJob->attr)) {
     SCH_JOB_ELOG("no need to fetch data, status:%d", SCH_GET_JOB_STATUS(pJob));
-    atomic_sub_fetch_32(&pJob->ref, 1);
-    SCH_ERR_RET(TSDB_CODE_QRY_APP_ERROR);
+    SCH_ERR_JRET(TSDB_CODE_QRY_APP_ERROR);
   }
 
   if (atomic_val_compare_exchange_8(&pJob->userFetch, 0, 1) != 0) {
     SCH_JOB_ELOG("prior fetching not finished, userFetch:%d", atomic_load_8(&pJob->userFetch));
-    atomic_sub_fetch_32(&pJob->ref, 1);
-    SCH_ERR_RET(TSDB_CODE_QRY_APP_ERROR);
+    SCH_ERR_JRET(TSDB_CODE_QRY_APP_ERROR);
   }
 
   if (JOB_TASK_STATUS_FAILED == status || JOB_TASK_STATUS_DROPPING == status) {
-    *pData = atomic_load_ptr(&pJob->res);
-    atomic_store_ptr(&pJob->res, NULL);
+    SCH_JOB_ELOG("job failed or dropping, status:%d", status);
     SCH_ERR_JRET(atomic_load_32(&pJob->errCode));
   } else if (status == JOB_TASK_STATUS_SUCCEED) {
-    *pData = atomic_load_ptr(&pJob->res);
-    atomic_store_ptr(&pJob->res, NULL);
+    SCH_JOB_ELOG("job already succeed, status:%d", status);
     goto _return;
   } else if (status == JOB_TASK_STATUS_PARTIAL_SUCCEED) {
     SCH_ERR_JRET(schFetchFromRemote(pJob));
@@ -1582,14 +1592,16 @@ int32_t scheduleFetchRows(SSchJob *pJob, void** pData) {
   status = SCH_GET_JOB_STATUS(pJob);
 
   if (JOB_TASK_STATUS_FAILED == status || JOB_TASK_STATUS_DROPPING == status) {
-    code = atomic_load_32(&pJob->errCode);
-    SCH_ERR_JRET(code);
+    SCH_JOB_ELOG("job failed or dropping, status:%d", status);
+    SCH_ERR_JRET(atomic_load_32(&pJob->errCode));
   }
   
   if (pJob->res && ((SRetrieveTableRsp *)pJob->res)->completed) {
     SCH_ERR_JRET(schCheckAndUpdateJobStatus(pJob, JOB_TASK_STATUS_SUCCEED));
   }
 
+_return:
+
   while (true) {
     *pData = atomic_load_ptr(&pJob->res);
     
@@ -1600,10 +1612,19 @@ int32_t scheduleFetchRows(SSchJob *pJob, void** pData) {
     break;
   }
 
-_return:
+  if (NULL == *pData) {
+    SRetrieveTableRsp *rsp = (SRetrieveTableRsp *)calloc(1, sizeof(SRetrieveTableRsp));
+    if (rsp) {
+      rsp->completed = 1;
+    }
+
+    *pData = rsp;
+  }
 
   atomic_val_compare_exchange_8(&pJob->userFetch, 1, 0);
 
+  SCH_JOB_DLOG("fetch done, code:%x", code);
+
   atomic_sub_fetch_32(&pJob->ref, 1);
 
   SCH_RET(code);
@@ -1683,6 +1704,7 @@ void scheduleFreeJob(void *job) {
   taosHashCleanup(pJob->succTasks);
   
   taosArrayDestroy(pJob->levels);
+  taosArrayDestroy(pJob->nodeList);
 
   tfree(pJob->res);
   
diff --git a/source/libs/scheduler/test/schedulerTests.cpp b/source/libs/scheduler/test/schedulerTests.cpp
index 58159f2306..1425ac0e6c 100644
--- a/source/libs/scheduler/test/schedulerTests.cpp
+++ b/source/libs/scheduler/test/schedulerTests.cpp
@@ -49,7 +49,7 @@ uint64_t schtQueryId = 1;
 
 bool schtTestStop = false;
 bool schtTestDeadLoop = false;
-int32_t schtTestMTRunSec = 60;
+int32_t schtTestMTRunSec = 10;
 int32_t schtTestPrintNum = 1000;
 int32_t schtStartFetch = 0;
 
@@ -187,8 +187,6 @@ void schtRpcSendRequest(void *shandle, const SEpSet *pEpSet, SRpcMsg *pMsg, int6
 
 }
 
-
-
 void schtSetPlanToString() {
   static Stub stub;
   stub.set(qSubPlanToString, schtPlanToString);
@@ -228,7 +226,12 @@ void schtSetRpcSendRequest() {
   }
 }
 
-int32_t schtAsyncSendMsgToServer(void *pTransporter, SEpSet* epSet, int64_t* pTransporterId, const SMsgSendInfo* pInfo) {
+int32_t schtAsyncSendMsgToServer(void *pTransporter, SEpSet* epSet, int64_t* pTransporterId, SMsgSendInfo* pInfo) {
+  if (pInfo) {
+    tfree(pInfo->param);
+    tfree(pInfo->msgInfo.pData);
+    free(pInfo);
+  }
   return 0;
 }
 
@@ -284,7 +287,7 @@ void *schtCreateFetchRspThread(void *param) {
   rsp->completed = 1;
   rsp->numOfRows = 10;
  
-  code = schHandleResponseMsg(job, job->fetchTask, TDMT_VND_FETCH_RSP, (char *)rsp, sizeof(rsp), 0);
+  code = schHandleResponseMsg(job, job->fetchTask, TDMT_VND_FETCH_RSP, (char *)rsp, sizeof(*rsp), 0);
     
   assert(code == 0);
 }
@@ -344,12 +347,6 @@ void* schtRunJobThread(void *aa) {
 
   schtInitLogFile();
 
-  SArray *qnodeList = taosArrayInit(1, sizeof(SEpAddr));
-
-  SEpAddr qnodeAddr = {0};
-  strcpy(qnodeAddr.fqdn, "qnode0.ep");
-  qnodeAddr.port = 6031;
-  taosArrayPush(qnodeList, &qnodeAddr);
   
   int32_t code = schedulerInit(NULL);
   assert(code == 0);
@@ -368,6 +365,13 @@ void* schtRunJobThread(void *aa) {
   while (!schtTestStop) {
     schtBuildQueryDag(&dag);
 
+    SArray *qnodeList = taosArrayInit(1, sizeof(SEpAddr));
+
+    SEpAddr qnodeAddr = {0};
+    strcpy(qnodeAddr.fqdn, "qnode0.ep");
+    qnodeAddr.port = 6031;
+    taosArrayPush(qnodeList, &qnodeAddr);
+
     code = scheduleAsyncExecJob(mockPointer, qnodeList, &dag, &job);
     assert(code == 0);
 
@@ -475,8 +479,6 @@ void* schtRunJobThread(void *aa) {
     code = scheduleFetchRows(pQueryJob, &data);
     assert(code == 0 || code);
     
-    assert(data == (void*)NULL);
-
     schtFreeQueryJob(0);
 
     taosHashCleanup(execTasks);
@@ -496,7 +498,7 @@ void* schtRunJobThread(void *aa) {
 
 void* schtFreeJobThread(void *aa) {
   while (!schtTestStop) {
-    usleep(rand() % 2000);
+    usleep(rand() % 100);
     schtFreeQueryJob(1);
   }
 }
@@ -592,11 +594,12 @@ TEST(queryTest, normalCase) {
   SRetrieveTableRsp *pRsp = (SRetrieveTableRsp *)data;
   ASSERT_EQ(pRsp->completed, 1);
   ASSERT_EQ(pRsp->numOfRows, 10);
+  tfree(data);
 
   data = NULL;
   code = scheduleFetchRows(job, &data);
   ASSERT_EQ(code, 0);
-  ASSERT_EQ(data, (void*)NULL);
+  ASSERT_TRUE(data);
 
   scheduleFreeJob(pJob);
 
@@ -607,7 +610,6 @@ TEST(queryTest, normalCase) {
 
 
 
-
 TEST(insertTest, normalCase) {
   void *mockPointer = (void *)0x1;
   char *clusterId = "cluster1";
@@ -672,7 +674,6 @@ TEST(multiThread, forceFree) {
   sleep(3);
 }
 
-
 int main(int argc, char** argv) {
   srand(time(NULL));
   testing::InitGoogleTest(&argc, argv);