diff --git a/include/libs/stream/tstream.h b/include/libs/stream/tstream.h
index 3c171ca5109aa3c0d3b9073b8c741faaf58a506e..8e286c6e1bf6d7f5a59d9ddad792a386f9e0c50c 100644
--- a/include/libs/stream/tstream.h
+++ b/include/libs/stream/tstream.h
@@ -45,6 +45,7 @@ enum {
   TASK_STATUS__FAIL,
   TASK_STATUS__STOP,
   TASK_STATUS__SCAN_HISTORY,  // stream task scan history data by using tsdbread in the stream scanner
+  TASK_STATUS__SCAN_HISTORY_WAL, // scan history data in wal
   TASK_STATUS__HALT,          // pause, but not be manipulated by user command
   TASK_STATUS__PAUSE,         // pause
 };
@@ -302,6 +303,12 @@ typedef struct {
   SStreamQueue* queue;
 } STaskOutputInfo;
 
+typedef struct {
+  int64_t init;
+  int64_t step1Start;
+  int64_t step2Start;
+} STaskTimestamp;
+
 struct SStreamTask {
   SStreamId        id;
   SSTaskBasicInfo  info;
@@ -316,7 +323,7 @@ struct SStreamTask {
   SArray*          pUpstreamEpInfoList;  // SArray<SStreamChildEpInfo*>, // children info
   int32_t          nextCheckId;
   SArray*          checkpointInfo;  // SArray<SStreamCheckpointInfo>
-  int64_t          initTs;
+  STaskTimestamp   tsInfo;
   // output
   union {
     STaskDispatcherFixedEp fixedEpDispatcher;
diff --git a/source/dnode/snode/src/snode.c b/source/dnode/snode/src/snode.c
index e8bdf97c70d896ac013200a65022d8fdb30d02f0..0e3ad3293be1cb23c6e47de17df4564c389aceda 100644
--- a/source/dnode/snode/src/snode.c
+++ b/source/dnode/snode/src/snode.c
@@ -72,7 +72,7 @@ int32_t sndExpandTask(SSnode *pSnode, SStreamTask *pTask, int64_t ver) {
     return -1;
   }
 
-  pTask->initTs = taosGetTimestampMs();
+  pTask->tsInfo.init = taosGetTimestampMs();
   pTask->inputStatus = TASK_INPUT_STATUS__NORMAL;
   pTask->outputInfo.status = TASK_OUTPUT_STATUS__NORMAL;
   pTask->pMsgCb = &pSnode->msgCb;
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 3bcc141edc4ba837f2bb88cefdca665423516615..3d715afc7167a8564a0cc0887484120ebe79da34 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -818,7 +818,7 @@ int32_t tqExpandTask(STQ* pTq, SStreamTask* pTask, int64_t ver) {
     return -1;
   }
 
-  pTask->initTs = taosGetTimestampMs();
+  pTask->tsInfo.init = taosGetTimestampMs();
   pTask->inputStatus = TASK_INPUT_STATUS__NORMAL;
   pTask->outputInfo.status = TASK_OUTPUT_STATUS__NORMAL;
   pTask->pMsgCb = &pTq->pVnode->msgCb;
@@ -1115,7 +1115,7 @@ int32_t tqProcessTaskScanHistory(STQ* pTq, SRpcMsg* pMsg) {
     streamTaskDisablePause(pTask);
   }
 
-  if (atomic_load_8(&pTask->status.taskStatus) == TASK_STATUS__DROPPING || streamTaskShouldPause(&pTask->status)) {
+  if (streamTaskShouldStop(&pTask->status) || streamTaskShouldPause(&pTask->status)) {
     tqDebug("s-task:%s is dropped or paused, abort recover in step1", id);
     atomic_store_8(&pTask->status.schedStatus, TASK_SCHED_STATUS__INACTIVE);
     streamMetaReleaseTask(pMeta, pTask);
@@ -1123,7 +1123,7 @@ int32_t tqProcessTaskScanHistory(STQ* pTq, SRpcMsg* pMsg) {
   }
 
   double el = (taosGetTimestampMs() - st) / 1000.0;
-  tqDebug("s-task:%s history data scan stage(step 1) ended, elapsed time:%.2fs", id, el);
+  tqDebug("s-task:%s scan-history stage(step 1) ended, elapsed time:%.2fs", id, el);
 
   if (pTask->info.fillHistory) {
     SVersionRange* pRange = NULL;
@@ -1173,34 +1173,35 @@ int32_t tqProcessTaskScanHistory(STQ* pTq, SRpcMsg* pMsg) {
               id, pTask->info.taskLevel, pRange->minVer, pRange->maxVer, pWindow->skey, pWindow->ekey, id);
       ASSERT(pTask->status.schedStatus == TASK_SCHED_STATUS__WAITING);
 
-      st = taosGetTimestampMs();
+      pTask->tsInfo.step2Start = taosGetTimestampMs();
       streamSetParamForStreamScannerStep2(pTask, pRange, pWindow);
     }
 
     if (!streamTaskRecoverScanStep2Finished(pTask)) {
-      streamSourceScanHistoryData(pTask);
-
-      if (atomic_load_8(&pTask->status.taskStatus) == TASK_STATUS__DROPPING || streamTaskShouldPause(&pTask->status)) {
+      pTask->status.taskStatus = TASK_STATUS__SCAN_HISTORY_WAL;
+      if (streamTaskShouldStop(&pTask->status) || streamTaskShouldPause(&pTask->status)) {
         tqDebug("s-task:%s is dropped or paused, abort recover in step1", id);
         streamMetaReleaseTask(pMeta, pTask);
         return 0;
       }
 
-      streamTaskRecoverSetAllStepFinished(pTask);
+      int64_t dstVer = pTask->dataRange.range.minVer - 1;
+      walReaderSetSkipToVersion(pTask->exec.pWalReader, dstVer);
+      tqDebug("s-task:%s seek wal reader to ver:%"PRId64, id, dstVer);
     }
 
-    el = (taosGetTimestampMs() - st) / 1000.0;
-    tqDebug("s-task:%s history data scan stage(step 2) ended, elapsed time:%.2fs", id, el);
-
-    // 3. notify downstream tasks to transfer executor state after handle all history blocks.
-    if (!pTask->status.transferState) {
-      code = streamDispatchTransferStateMsg(pTask);
-      if (code != TSDB_CODE_SUCCESS) {
-        // todo handle error
-      }
-
-      pTask->status.transferState = true;
-    }
+//    int64_t el = (taosGetTimestampMs() - pTask->tsInfo.step2Start) / 1000.0;
+//    tqDebug("s-task:%s history data scan stage(step 2) ended, elapsed time:%.2fs", id, el);
+//
+//    // 3. notify downstream tasks to transfer executor state after handle all history blocks.
+//    if (!pTask->status.transferState) {
+//      code = streamDispatchTransferStateMsg(pTask);
+//      if (code != TSDB_CODE_SUCCESS) {
+//        // todo handle error
+//      }
+//
+//      pTask->status.transferState = true;
+//    }
 
     // 4. 1) transfer the ownership of executor state, 2) update the scan data range for source task.
     // 5. resume the related stream task.
@@ -1409,8 +1410,8 @@ int32_t tqProcessTaskRunReq(STQ* pTq, SRpcMsg* pMsg) {
   SStreamTask* pTask = streamMetaAcquireTask(pTq->pStreamMeta, taskId);
   if (pTask != NULL) {
     // even in halt status, the data in inputQ must be processed
-    int8_t status = pTask->status.taskStatus;
-    if (status == TASK_STATUS__NORMAL || status == TASK_STATUS__SCAN_HISTORY) {
+    int8_t st = pTask->status.taskStatus;
+    if (st == TASK_STATUS__NORMAL || st == TASK_STATUS__SCAN_HISTORY || st == TASK_STATUS__SCAN_HISTORY_WAL) {
       tqDebug("vgId:%d s-task:%s start to process block from inputQ, last chk point:%" PRId64, vgId, pTask->id.idStr,
               pTask->chkInfo.version);
       streamProcessRunReq(pTask);
diff --git a/source/dnode/vnode/src/tq/tqRestore.c b/source/dnode/vnode/src/tq/tqRestore.c
index 3f5829d3aecd32b633cae48806433e9e05896d5f..921ea2cc68508ef47a447c31935a6ae840d0b6b2 100644
--- a/source/dnode/vnode/src/tq/tqRestore.c
+++ b/source/dnode/vnode/src/tq/tqRestore.c
@@ -247,7 +247,7 @@ int32_t createStreamTaskRunReq(SStreamMeta* pStreamMeta, bool* pScanIdle) {
       continue;
     }
 
-    if (status != TASK_STATUS__NORMAL) {
+    if (status != TASK_STATUS__NORMAL && status != TASK_STATUS__SCAN_HISTORY_WAL) {
       tqDebug("s-task:%s not ready for new submit block from wal, status:%s", pTask->id.idStr, streamGetTaskStatusStr(status));
       streamMetaReleaseTask(pStreamMeta, pTask);
       continue;
@@ -261,6 +261,17 @@ int32_t createStreamTaskRunReq(SStreamMeta* pStreamMeta, bool* pScanIdle) {
 
     *pScanIdle = false;
 
+    if (pTask->info.fillHistory == 1) {
+      ASSERT(pTask->status.taskStatus == TASK_STATUS__SCAN_HISTORY_WAL);
+      // the maximum version of data in the WAL has reached already, the step2 is done
+      if (pTask->chkInfo.currentVer > pTask->dataRange.range.maxVer) {
+        qWarn("s-task:%s fill-history scan WAL, reach the maximum ver:%" PRId64 ", not scan wal anymore",
+              pTask->id.idStr, pTask->chkInfo.currentVer);
+        streamMetaReleaseTask(pStreamMeta, pTask);
+        continue;
+      }
+    }
+
     // seek the stored version and extract data from WAL
     int32_t code = doSetOffsetForWalReader(pTask, vgId);
     if (code != TSDB_CODE_SUCCESS) {
@@ -283,9 +294,9 @@ int32_t createStreamTaskRunReq(SStreamMeta* pStreamMeta, bool* pScanIdle) {
       noDataInWal = false;
       code = tAppendDataToInputQueue(pTask, pItem);
       if (code == TSDB_CODE_SUCCESS) {
-        pTask->chkInfo.currentVer = walReaderGetCurrentVer(pTask->exec.pWalReader);
-        tqDebug("s-task:%s set the ver:%" PRId64 " from WALReader after extract block from WAL", pTask->id.idStr,
-                pTask->chkInfo.currentVer);
+        int64_t ver = walReaderGetCurrentVer(pTask->exec.pWalReader);
+        pTask->chkInfo.currentVer = ver;
+        tqDebug("s-task:%s set the ver:%" PRId64 " from WALReader after extract block from WAL", pTask->id.idStr, ver);
       } else {
         tqError("s-task:%s append input queue failed, too many in inputQ, ver:%" PRId64, pTask->id.idStr,
                 pTask->chkInfo.currentVer);
diff --git a/source/libs/stream/src/stream.c b/source/libs/stream/src/stream.c
index fa0561a72216ee7e898b8754faf9e6594b25df22..ba8e358f68cf0c2964624a1608ac0ef0fcac5afe 100644
--- a/source/libs/stream/src/stream.c
+++ b/source/libs/stream/src/stream.c
@@ -324,9 +324,6 @@ int32_t streamProcessRunReq(SStreamTask* pTask) {
     return -1;
   }
 
-  /*if (pTask->dispatchType == TASK_OUTPUT__FIXED_DISPATCH || pTask->dispatchType == TASK_OUTPUT__SHUFFLE_DISPATCH) {*/
-  /*streamDispatchStreamBlock(pTask);*/
-  /*}*/
   return 0;
 }
 
diff --git a/source/libs/stream/src/streamExec.c b/source/libs/stream/src/streamExec.c
index af93d95a9fd91b137d5de16c0be338222fb18ea2..c939ea1807490b371393fd15b2bc6d63c8f83a5b 100644
--- a/source/libs/stream/src/streamExec.c
+++ b/source/libs/stream/src/streamExec.c
@@ -589,6 +589,8 @@ int32_t streamTryExec(SStreamTask* pTask) {
   int8_t schedStatus =
       atomic_val_compare_exchange_8(&pTask->status.schedStatus, TASK_SCHED_STATUS__WAITING, TASK_SCHED_STATUS__ACTIVE);
 
+  const char* id = pTask->id.idStr;
+
   if (schedStatus == TASK_SCHED_STATUS__WAITING) {
     int32_t code = streamExecForAll(pTask);
     if (code < 0) {  // todo this status shoudl be removed
@@ -597,16 +599,43 @@ int32_t streamTryExec(SStreamTask* pTask) {
     }
 
     // todo the task should be commit here
-    atomic_store_8(&pTask->status.schedStatus, TASK_SCHED_STATUS__INACTIVE);
-    qDebug("s-task:%s exec completed, status:%s, sched-status:%d", pTask->id.idStr, streamGetTaskStatusStr(pTask->status.taskStatus),
-           pTask->status.schedStatus);
+    if (taosQueueEmpty(pTask->inputQueue->queue)) {
+      if (pTask->status.taskStatus == TASK_STATUS__SCAN_HISTORY_WAL &&
+          pTask->chkInfo.currentVer > pTask->dataRange.range.maxVer) {
+        // fill-history WAL scan has completed
+        streamTaskRecoverSetAllStepFinished(pTask);
+
+        double el = (taosGetTimestampMs() - pTask->tsInfo.step2Start) / 1000.0;
+        qDebug("s-task:%s scan-history from WAL stage(step 2) ended, elapsed time:%.2fs", id, el);
+
+        // 3. notify downstream tasks to transfer executor state after handle all history blocks.
+        if (!pTask->status.transferState) {
+          code = streamDispatchTransferStateMsg(pTask);
+          if (code != TSDB_CODE_SUCCESS) {
+            // todo handle error
+          }
+
+          pTask->status.transferState = true;
+        }
 
-    if (!taosQueueEmpty(pTask->inputQueue->queue) && (!streamTaskShouldStop(&pTask->status)) &&
-        (!streamTaskShouldPause(&pTask->status))) {
-      streamSchedExec(pTask);
+        // the last execution of fill-history task, in order to transfer task operator states.
+        code = streamExecForAll(pTask);
+
+        atomic_store_8(&pTask->status.schedStatus, TASK_SCHED_STATUS__INACTIVE);
+        qDebug("s-task:%s exec completed, status:%s, sched-status:%d", id, streamGetTaskStatusStr(pTask->status.taskStatus),
+               pTask->status.schedStatus);
+      }
+    } else {
+      atomic_store_8(&pTask->status.schedStatus, TASK_SCHED_STATUS__INACTIVE);
+      qDebug("s-task:%s exec completed, status:%s, sched-status:%d", id, streamGetTaskStatusStr(pTask->status.taskStatus),
+             pTask->status.schedStatus);
+
+      if ((!streamTaskShouldStop(&pTask->status)) && (!streamTaskShouldPause(&pTask->status))) {
+        streamSchedExec(pTask);
+      }
     }
   } else {
-    qDebug("s-task:%s already started to exec by other thread, status:%s, sched-status:%d", pTask->id.idStr,
+    qDebug("s-task:%s already started to exec by other thread, status:%s, sched-status:%d", id,
            streamGetTaskStatusStr(pTask->status.taskStatus), pTask->status.schedStatus);
   }
 
diff --git a/source/libs/stream/src/streamRecover.c b/source/libs/stream/src/streamRecover.c
index dffa28e769a6082d48afcea35a23db0175b41844..fd5d35808ef0f84a3a1677bec10a503998ba2081 100644
--- a/source/libs/stream/src/streamRecover.c
+++ b/source/libs/stream/src/streamRecover.c
@@ -23,7 +23,7 @@ static void streamTaskSetRangeStreamCalc(SStreamTask* pTask);
 static void streamTaskSetForReady(SStreamTask* pTask, int32_t numOfReqs) {
   ASSERT(pTask->status.downstreamReady == 0);
   pTask->status.downstreamReady = 1;
-  int64_t el = (taosGetTimestampMs() - pTask->initTs);
+  int64_t el = (taosGetTimestampMs() - pTask->tsInfo.init);
 
   qDebug("s-task:%s all %d downstream ready, init completed, elapsed time:%dms, task status:%s",
          pTask->id.idStr, numOfReqs, (int32_t) el, streamGetTaskStatusStr(pTask->status.taskStatus));
@@ -663,7 +663,7 @@ void streamHistoryTaskSetVerRangeStep2(SStreamTask* pTask, int64_t latestVer) {
     // no input data yet. no need to execute the secondardy scan while stream task halt
     streamTaskRecoverSetAllStepFinished(pTask);
     qDebug(
-        "s-task:%s no need to perform secondary scan-history-data(step 2), since no data ingest during secondary scan",
+        "s-task:%s no need to perform secondary scan-history data(step 2), since no data ingest during secondary scan",
         pTask->id.idStr);
   } else {
     // 2. do secondary scan of the history data, the time window remain, and the version range is updated to