diff --git a/source/dnode/vnode/src/tsdb/tsdbCache.c b/source/dnode/vnode/src/tsdb/tsdbCache.c
index ed25783e9f..b614b813d1 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCache.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCache.c
@@ -422,6 +422,8 @@ typedef struct {
   STsdb               *pTsdb;         // [input]
   SBlockIdx           *pBlockIdxExp;  // [input]
   STSchema            *pTSchema;      // [input]
+  tb_uid_t             suid;
+  tb_uid_t             uid;
   int32_t              nFileSet;
   int32_t              iFileSet;
   SArray              *aDFileSet;
@@ -593,6 +595,9 @@ typedef struct SFSNextRowIter {
   SFSNEXTROWSTATES state;         // [input]
   STsdb           *pTsdb;         // [input]
   SBlockIdx       *pBlockIdxExp;  // [input]
+  STSchema        *pTSchema;      // [input]
+  tb_uid_t         suid;
+  tb_uid_t         uid;
   int32_t          nFileSet;
   int32_t          iFileSet;
   SArray          *aDFileSet;
@@ -685,6 +690,10 @@ static int32_t getNextRowFromFS(void *iter, TSDBROW **ppRow) {
 
         tMapDataGetItemByIdx(&state->blockMap, state->iBlock, &block, tGetBlock);
         /* code = tsdbReadBlockData(state->pDataFReader, &state->blockIdx, &block, &state->blockData, NULL, NULL); */
+        tBlockDataReset(state->pBlockData);
+        code = tBlockDataInit(state->pBlockData, state->suid, state->uid, state->pTSchema);
+        if (code) goto _err;
+
         code = tsdbReadDataBlock(state->pDataFReader, &block, state->pBlockData);
         if (code) goto _err;
 
@@ -958,16 +967,21 @@ static int32_t nextRowIterOpen(CacheNextRowIter *pIter, tb_uid_t uid, STsdb *pTs
 
   pIter->idx = (SBlockIdx){.suid = suid, .uid = uid};
 
-  pIter->fsLastState.state = (SFSLASTNEXTROWSTATES) SFSNEXTROW_FS;
+  pIter->fsLastState.state = (SFSLASTNEXTROWSTATES)SFSNEXTROW_FS;
   pIter->fsLastState.pTsdb = pTsdb;
   pIter->fsLastState.aDFileSet = pIter->pReadSnap->fs.aDFileSet;
   pIter->fsLastState.pBlockIdxExp = &pIter->idx;
   pIter->fsLastState.pTSchema = pTSchema;
+  pIter->fsLastState.suid = suid;
+  pIter->fsLastState.uid = uid;
 
   pIter->fsState.state = SFSNEXTROW_FS;
   pIter->fsState.pTsdb = pTsdb;
   pIter->fsState.aDFileSet = pIter->pReadSnap->fs.aDFileSet;
   pIter->fsState.pBlockIdxExp = &pIter->idx;
+  pIter->fsState.pTSchema = pTSchema;
+  pIter->fsState.suid = suid;
+  pIter->fsState.uid = uid;
 
   pIter->input[0] = (TsdbNextRowState){&pIter->memRow, true, false, &pIter->memState, getNextRowFromMem, NULL};
   pIter->input[1] = (TsdbNextRowState){&pIter->imemRow, true, false, &pIter->imemState, getNextRowFromMem, NULL};
diff --git a/source/libs/scheduler/inc/schInt.h b/source/libs/scheduler/inc/schInt.h
index 1b3d75f33b..ce841ed83c 100644
--- a/source/libs/scheduler/inc/schInt.h
+++ b/source/libs/scheduler/inc/schInt.h
@@ -60,8 +60,7 @@ typedef enum {
 #define SCH_DEFAULT_TASK_TIMEOUT_USEC 10000000
 #define SCH_MAX_TASK_TIMEOUT_USEC 60000000
 #define SCH_DEFAULT_MAX_RETRY_NUM 6
-
-#define SCH_ASYNC_LAUNCH_TASK 0
+#define SCH_MIN_AYSNC_EXEC_NUM 3
 
 typedef struct SSchDebug {
   bool     lockEnable;
diff --git a/source/libs/scheduler/src/schTask.c b/source/libs/scheduler/src/schTask.c
index 612b908d41..d16d15c119 100644
--- a/source/libs/scheduler/src/schTask.c
+++ b/source/libs/scheduler/src/schTask.c
@@ -871,14 +871,14 @@ _return:
 
   taosMemoryFree(param);
 
-#if SCH_ASYNC_LAUNCH_TASK
-  if (code) {
-    code = schProcessOnTaskFailure(pJob, pTask, code);
+  if (pJob->taskNum >= SCH_MIN_AYSNC_EXEC_NUM) {
+    if (code) {
+      code = schProcessOnTaskFailure(pJob, pTask, code);
+    }
+    if (code) {
+      code = schHandleJobFailure(pJob, code);
+    }
   }
-  if (code) {
-    code = schHandleJobFailure(pJob, code);
-  }
-#endif
 
   SCH_RET(code);
 }
@@ -893,12 +893,12 @@ int32_t schAsyncLaunchTaskImpl(SSchJob *pJob, SSchTask *pTask) {
   param->pJob = pJob;
   param->pTask = pTask;
 
-#if SCH_ASYNC_LAUNCH_TASK
-  taosAsyncExec(schLaunchTaskImpl, param, NULL);
-#else
-  SCH_ERR_RET(schLaunchTaskImpl(param));
-#endif
-
+  if (pJob->taskNum >= SCH_MIN_AYSNC_EXEC_NUM) {
+    taosAsyncExec(schLaunchTaskImpl, param, NULL);
+  } else {
+    SCH_ERR_RET(schLaunchTaskImpl(param));
+  }
+  
   return TSDB_CODE_SUCCESS;
 }