diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index c569eb1496..0e2cabedee 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -46,7 +46,7 @@ extern "C" {
 #define ERROR_MSG_BUF_DEFAULT_SIZE 512
 #define HEARTBEAT_INTERVAL         1500  // ms
 
-#define SYNC_ON_TOP_OF_ASYNC 0
+#define SYNC_ON_TOP_OF_ASYNC 1
 
 enum {
   RES_TYPE__QUERY = 1,
diff --git a/source/client/src/clientMain.c b/source/client/src/clientMain.c
index 20f14f619d..873759dfbd 100644
--- a/source/client/src/clientMain.c
+++ b/source/client/src/clientMain.c
@@ -706,18 +706,8 @@ void taos_query_a(TAOS *taos, const char *sql, __taos_async_fn_t fp, void *param
   pWrapper->pRequest = pRequest;
   pWrapper->catalogReq = catalogReq;
 
-  //todo refactor move to asyncGetAllMeta function
-  bool allNull = (catalogReq.pUdf == NULL && catalogReq.pUser == NULL && catalogReq.pDbCfg == NULL &&
-      catalogReq.pIndex == NULL && catalogReq.pDbInfo == NULL && catalogReq.pDbVgroup == NULL &&
-      catalogReq.pTableHash == NULL && catalogReq.pTableMeta == NULL && catalogReq.qNodeRequired == false);
-
-  if (allNull) {
-    SMetaData* pMetaData = taosMemoryCalloc(1, sizeof(SMetaData));
-    retrieveMetaCallback(pMetaData, pWrapper, TSDB_CODE_SUCCESS);
-  } else {
-    code = catalogAsyncGetAllMeta(pCxt->pCatalog, pCxt->pTransporter, &pCxt->mgmtEpSet, pRequest->requestId,
+  code = catalogAsyncGetAllMeta(pCxt->pCatalog, pCxt->pTransporter, &pCxt->mgmtEpSet, pRequest->requestId,
                                   &catalogReq, retrieveMetaCallback, pWrapper, &pRequest->body.queryJob);
-  }
 
   if (code != TSDB_CODE_SUCCESS) {
     goto _error;
diff --git a/source/client/test/clientTests.cpp b/source/client/test/clientTests.cpp
index 1e81a78129..abeec373d9 100644
--- a/source/client/test/clientTests.cpp
+++ b/source/client/test/clientTests.cpp
@@ -104,7 +104,7 @@ TEST(testCase, connect_Test) {
   }
   taos_close(pConn);
 }
-
+#if 0
 TEST(testCase, create_user_Test) {
   TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
   assert(pConn != NULL);
@@ -773,6 +773,7 @@ TEST(testCase, agg_query_tables) {
   taos_free_result(pRes);
   taos_close(pConn);
 }
+#endif
 
 /*
 --- copy the following script in the shell to setup the environment ---
@@ -789,7 +790,7 @@ TEST(testCase, async_api_test) {
   TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
   ASSERT_NE(pConn, nullptr);
 
-  taos_query_a(pConn, "select ts from test.m1", queryCallback, pConn);
+  taos_query_a(pConn, "drop table test.tm0", queryCallback, pConn);
   getchar();
   taos_close(pConn);
 }
diff --git a/source/libs/catalog/inc/catalogInt.h b/source/libs/catalog/inc/catalogInt.h
index 239d719fa8..cebe696390 100644
--- a/source/libs/catalog/inc/catalogInt.h
+++ b/source/libs/catalog/inc/catalogInt.h
@@ -490,7 +490,7 @@ int32_t ctgGetTbMetaFromMnodeImpl(CTG_PARAMS, char *dbFName, char* tbName, STabl
 int32_t ctgGetTbMetaFromMnode(CTG_PARAMS, const SName* pTableName, STableMetaOutput* out, SCtgTask* pTask);
 int32_t ctgGetTbMetaFromVnode(CTG_PARAMS, const SName* pTableName, SVgroupInfo *vgroupInfo, STableMetaOutput* out, SCtgTask* pTask);
 
-int32_t ctgInitJob(CTG_PARAMS, SCtgJob** job, uint64_t reqId, const SCatalogReq* pReq, catalogCallback fp, void* param);
+int32_t ctgInitJob(CTG_PARAMS, SCtgJob** job, uint64_t reqId, const SCatalogReq* pReq, catalogCallback fp, void* param, int32_t* taskNum);
 int32_t ctgLaunchJob(SCtgJob *pJob);
 int32_t ctgMakeAsyncRes(SCtgJob *pJob);
 
diff --git a/source/libs/catalog/src/catalog.c b/source/libs/catalog/src/catalog.c
index e9927fcaca..040156eca2 100644
--- a/source/libs/catalog/src/catalog.c
+++ b/source/libs/catalog/src/catalog.c
@@ -1028,9 +1028,14 @@ int32_t catalogAsyncGetAllMeta(SCatalog* pCtg, void *pTrans, const SEpSet* pMgmt
     CTG_API_LEAVE(TSDB_CODE_CTG_INVALID_INPUT);
   }
 
-  int32_t code = 0;
+  int32_t code = 0, taskNum = 0;
   SCtgJob *pJob = NULL;
-  CTG_ERR_JRET(ctgInitJob(CTG_PARAMS_LIST(), &pJob, reqId, pReq, fp, param));
+  CTG_ERR_JRET(ctgInitJob(CTG_PARAMS_LIST(), &pJob, reqId, pReq, fp, param, &taskNum));
+  if (taskNum <= 0) {
+    SMetaData* pMetaData = taosMemoryCalloc(1, sizeof(SMetaData));
+    fp(pMetaData, param, TSDB_CODE_SUCCESS);
+    CTG_API_LEAVE(TSDB_CODE_SUCCESS);
+  }
 
   CTG_ERR_JRET(ctgLaunchJob(pJob));
 
diff --git a/source/libs/catalog/src/ctgAsync.c b/source/libs/catalog/src/ctgAsync.c
index eb84bf00a4..312f0c9250 100644
--- a/source/libs/catalog/src/ctgAsync.c
+++ b/source/libs/catalog/src/ctgAsync.c
@@ -233,7 +233,7 @@ int32_t ctgInitGetUserTask(SCtgJob *pJob, int32_t taskIdx, SUserAuthInfo *user)
 }
 
 
-int32_t ctgInitJob(CTG_PARAMS, SCtgJob** job, uint64_t reqId, const SCatalogReq* pReq, catalogCallback fp, void* param) {
+int32_t ctgInitJob(CTG_PARAMS, SCtgJob** job, uint64_t reqId, const SCatalogReq* pReq, catalogCallback fp, void* param, int32_t* taskNum) {
   int32_t code = 0;
   int32_t tbMetaNum = (int32_t)taosArrayGetSize(pReq->pTableMeta);
   int32_t dbVgNum = (int32_t)taosArrayGetSize(pReq->pDbVgroup);
@@ -245,15 +245,15 @@ int32_t ctgInitJob(CTG_PARAMS, SCtgJob** job, uint64_t reqId, const SCatalogReq*
   int32_t userNum = (int32_t)taosArrayGetSize(pReq->pUser);
   int32_t dbInfoNum = (int32_t)taosArrayGetSize(pReq->pDbInfo);
 
-  int32_t taskNum = tbMetaNum + dbVgNum + udfNum + tbHashNum + qnodeNum + dbCfgNum + indexNum + userNum + dbInfoNum;
-  if (taskNum <= 0) {
-    ctgError("empty input for job, taskNum:%d", taskNum);
-    CTG_ERR_RET(TSDB_CODE_CTG_INVALID_INPUT);
+  *taskNum = tbMetaNum + dbVgNum + udfNum + tbHashNum + qnodeNum + dbCfgNum + indexNum + userNum + dbInfoNum;
+  if (*taskNum <= 0) {
+    ctgError("Empty input for job, no need to retrieve meta, reqId:0x%" PRIx64, reqId);
+    return TSDB_CODE_SUCCESS;
   }
-  
+
   *job = taosMemoryCalloc(1, sizeof(SCtgJob));
   if (NULL == *job) {
-    ctgError("calloc %d failed", (int32_t)sizeof(SCtgJob));
+    ctgError("failed to calloc, size:%d, reqId:0x%" PRIx64, (int32_t)sizeof(SCtgJob), reqId);
     CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
   }
 
@@ -275,52 +275,52 @@ int32_t ctgInitJob(CTG_PARAMS, SCtgJob** job, uint64_t reqId, const SCatalogReq*
   pJob->indexNum = indexNum;
   pJob->userNum = userNum;
   pJob->dbInfoNum = dbInfoNum;
-  
-  pJob->pTasks = taosArrayInit(taskNum, sizeof(SCtgTask));
-  
+
+  pJob->pTasks = taosArrayInit(*taskNum, sizeof(SCtgTask));
+
   if (NULL == pJob->pTasks) {
-    ctgError("taosArrayInit %d tasks failed", taskNum);
+    ctgError("taosArrayInit %d tasks failed", *taskNum);
     CTG_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
   }
 
   int32_t taskIdx = 0;
   for (int32_t i = 0; i < dbVgNum; ++i) {
-    char *dbFName = taosArrayGet(pReq->pDbVgroup, i);
+    char* dbFName = taosArrayGet(pReq->pDbVgroup, i);
     CTG_ERR_JRET(ctgInitGetDbVgTask(pJob, taskIdx++, dbFName));
   }
 
   for (int32_t i = 0; i < dbCfgNum; ++i) {
-    char *dbFName = taosArrayGet(pReq->pDbCfg, i);
+    char* dbFName = taosArrayGet(pReq->pDbCfg, i);
     CTG_ERR_JRET(ctgInitGetDbCfgTask(pJob, taskIdx++, dbFName));
   }
 
   for (int32_t i = 0; i < dbInfoNum; ++i) {
-    char *dbFName = taosArrayGet(pReq->pDbInfo, i);
+    char* dbFName = taosArrayGet(pReq->pDbInfo, i);
     CTG_ERR_JRET(ctgInitGetDbInfoTask(pJob, taskIdx++, dbFName));
   }
 
   for (int32_t i = 0; i < tbMetaNum; ++i) {
-    SName *name = taosArrayGet(pReq->pTableMeta, i);
+    SName* name = taosArrayGet(pReq->pTableMeta, i);
     CTG_ERR_JRET(ctgInitGetTbMetaTask(pJob, taskIdx++, name));
   }
 
   for (int32_t i = 0; i < tbHashNum; ++i) {
-    SName *name = taosArrayGet(pReq->pTableHash, i);
+    SName* name = taosArrayGet(pReq->pTableHash, i);
     CTG_ERR_JRET(ctgInitGetTbHashTask(pJob, taskIdx++, name));
   }
 
   for (int32_t i = 0; i < indexNum; ++i) {
-    char *indexName = taosArrayGet(pReq->pIndex, i);
+    char* indexName = taosArrayGet(pReq->pIndex, i);
     CTG_ERR_JRET(ctgInitGetIndexTask(pJob, taskIdx++, indexName));
   }
 
   for (int32_t i = 0; i < udfNum; ++i) {
-    char *udfName = taosArrayGet(pReq->pUdf, i);
+    char* udfName = taosArrayGet(pReq->pUdf, i);
     CTG_ERR_JRET(ctgInitGetUdfTask(pJob, taskIdx++, udfName));
   }
 
   for (int32_t i = 0; i < userNum; ++i) {
-    SUserAuthInfo *user = taosArrayGet(pReq->pUser, i);
+    SUserAuthInfo* user = taosArrayGet(pReq->pUser, i);
     CTG_ERR_JRET(ctgInitGetUserTask(pJob, taskIdx++, user));
   }
 
@@ -328,22 +328,8 @@ int32_t ctgInitJob(CTG_PARAMS, SCtgJob** job, uint64_t reqId, const SCatalogReq*
     CTG_ERR_JRET(ctgInitGetQnodeTask(pJob, taskIdx++));
   }
 
-  pJob->refId = taosAddRef(gCtgMgmt.jobPool, pJob);
-  if (pJob->refId < 0) {
-    ctgError("add job to ref failed, error: %s", tstrerror(terrno));
-    CTG_ERR_JRET(terrno);
-  }
-
-  taosAcquireRef(gCtgMgmt.jobPool, pJob->refId);
-
-  qDebug("QID:%" PRIx64 ", job %" PRIx64 " initialized, task num %d", pJob->queryId, pJob->refId, taskNum);
-
-  return TSDB_CODE_SUCCESS;
-
 _return:
-
   taosMemoryFreeClear(*job);
-
   CTG_RET(code);
 }
 
diff --git a/tests/script/tsim/testsuit.sim b/tests/script/tsim/testsuit.sim
index 64fe198dce..883dc1e789 100644
--- a/tests/script/tsim/testsuit.sim
+++ b/tests/script/tsim/testsuit.sim
@@ -1,7 +1,7 @@
-#run tsim/user/pass_alter.sim
-#run tsim/user/basic1.sim
-#run tsim/user/privilege2.sim
-#run tsim/user/user_len.sim
+run tsim/user/pass_alter.sim
+run tsim/user/basic1.sim
+run tsim/user/privilege2.sim
+run tsim/user/user_len.sim
 run tsim/user/privilege1.sim
 run tsim/user/pass_len.sim
 run tsim/table/basic1.sim