diff --git a/source/libs/executor/src/timewindowoperator.c b/source/libs/executor/src/timewindowoperator.c
index 55c1b89c30..474ac5f98d 100644
--- a/source/libs/executor/src/timewindowoperator.c
+++ b/source/libs/executor/src/timewindowoperator.c
@@ -3052,7 +3052,7 @@ SOperatorInfo* createStreamFinalIntervalOperatorInfo(SOperatorInfo* downstream,
   int32_t funResSize= getMaxFunResSize(&pOperator->exprSupp, numOfCols);
   pInfo->pState->pFileState = pAPI->stateStore.streamFileStateInit(
       tsStreamBufferSize, sizeof(SWinKey), pInfo->aggSup.resultRowSize, funResSize, compareTs, pInfo->pState,
-      pInfo->twAggSup.deleteMark, GET_TASKID(pTaskInfo), pTaskInfo->streamInfo.snapshotVer);
+      pInfo->twAggSup.deleteMark, GET_TASKID(pTaskInfo), pHandle->checkpointId);
   pInfo->dataVersion = 0;
   pInfo->stateStore = pTaskInfo->storageAPI.stateStore;
   pInfo->recvGetAll = false;
@@ -5704,7 +5704,7 @@ SOperatorInfo* createStreamIntervalOperatorInfo(SOperatorInfo* downstream, SPhys
 
   pInfo->pState->pFileState = pTaskInfo->storageAPI.stateStore.streamFileStateInit(
       tsStreamBufferSize, sizeof(SWinKey), pInfo->aggSup.resultRowSize, funResSize, compareTs, pInfo->pState,
-      pInfo->twAggSup.deleteMark, GET_TASKID(pTaskInfo), pTaskInfo->streamInfo.snapshotVer);
+      pInfo->twAggSup.deleteMark, GET_TASKID(pTaskInfo), pHandle->checkpointId);
 
   setOperatorInfo(pOperator, "StreamIntervalOperator", QUERY_NODE_PHYSICAL_PLAN_STREAM_INTERVAL, true, OP_NOT_OPENED,
                   pInfo, pTaskInfo);
diff --git a/source/libs/stream/src/streamBackendRocksdb.c b/source/libs/stream/src/streamBackendRocksdb.c
index cc185d2c2c..0b7d6d7693 100644
--- a/source/libs/stream/src/streamBackendRocksdb.c
+++ b/source/libs/stream/src/streamBackendRocksdb.c
@@ -883,7 +883,7 @@ int32_t decodeValueFunc(void* value, int32_t vlen, int64_t* ttl, char** dest) {
   SStreamValue key = {0};
   char*        p = value;
   if (streamStateValueIsStale(p)) {
-    *dest = NULL;
+    if (dest != NULL) *dest = NULL;
     return -1;
   }
   p = taosDecodeFixedI64(p, &key.unixTimestamp);
@@ -1490,9 +1490,13 @@ int32_t streamStateGetKVByCur_rocksdb(SStreamStateCur* pCur, SWinKey* pKey, cons
     if (pKtmp->opNum != pCur->number) {
       return -1;
     }
-    size_t vlen = 0;
-    if (pVal != NULL) *pVal = (char*)rocksdb_iter_value(pCur->iter, &vlen);
-    if (pVLen != NULL) *pVLen = vlen;
+
+    if (pVLen != NULL) {
+      size_t      vlen = 0;
+      const char* valStr = rocksdb_iter_value(pCur->iter, &vlen);
+      *pVLen = decodeValueFunc((void*)valStr, vlen, NULL, (char**)pVal);
+    }
+
     *pKey = pKtmp->key;
     return 0;
   }
@@ -1555,19 +1559,18 @@ SStreamStateCur* streamStateSeekToLast_rocksdb(SStreamState* pState, const SWinK
   const SStateKey maxStateKey = {.key = {.groupId = UINT64_MAX, .ts = INT64_MAX}, .opNum = INT64_MAX};
   STREAM_STATE_PUT_ROCKSDB(pState, "state", &maxStateKey, "", 0);
 
-  char             buf[128] = {0};
-  int32_t          klen = stateKeyEncode((void*)&maxStateKey, buf);
+  char    buf[128] = {0};
+  int32_t klen = stateKeyEncode((void*)&maxStateKey, buf);
+
   SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
   if (pCur == NULL) return NULL;
 
-  SBackendCfWrapper* wrapper = pState->pTdbState->pBackendCfWrapper;
-  pCur->db = wrapper->rocksdb;
+  pCur->db = ((SBackendCfWrapper*)pState->pTdbState->pBackendCfWrapper)->rocksdb;
   pCur->iter = streamStateIterCreate(pState, "state", (rocksdb_snapshot_t**)&pCur->snapshot,
                                      (rocksdb_readoptions_t**)&pCur->readOpt);
   pCur->number = pState->number;
 
   rocksdb_iter_seek(pCur->iter, buf, (size_t)klen);
-
   rocksdb_iter_prev(pCur->iter);
   while (rocksdb_iter_valid(pCur->iter) && iterValueIsStale(pCur->iter)) {
     rocksdb_iter_prev(pCur->iter);
@@ -1600,18 +1603,14 @@ SStreamStateCur* streamStateGetCur_rocksdb(SStreamState* pState, const SWinKey*
   rocksdb_iter_seek(pCur->iter, buf, len);
 
   if (rocksdb_iter_valid(pCur->iter) && !iterValueIsStale(pCur->iter)) {
-    size_t vlen;
-    char*  val = (char*)rocksdb_iter_value(pCur->iter, &vlen);
-    if (!streamStateValueIsStale(val)) {
-      SStateKey curKey;
-      size_t    kLen = 0;
-      char*     keyStr = (char*)rocksdb_iter_key(pCur->iter, &kLen);
-      stateKeyDecode((void*)&curKey, keyStr);
+    SStateKey curKey;
+    size_t    kLen = 0;
+    char*     keyStr = (char*)rocksdb_iter_key(pCur->iter, &kLen);
+    stateKeyDecode((void*)&curKey, keyStr);
 
-      if (stateKeyCmpr(&sKey, sizeof(sKey), &curKey, sizeof(curKey)) == 0) {
-        pCur->number = pState->number;
-        return pCur;
-      }
+    if (stateKeyCmpr(&sKey, sizeof(sKey), &curKey, sizeof(curKey)) == 0) {
+      pCur->number = pState->number;
+      return pCur;
     }
   }
   streamStateFreeCur(pCur);
@@ -1900,8 +1899,7 @@ int32_t streamStateFillGetKVByCur_rocksdb(SStreamStateCur* pCur, SWinKey* pKey,
   winKeyDecode(&winKey, keyStr);
 
   const char* valStr = rocksdb_iter_value(pCur->iter, &vlen);
-  // char*       dst = NULL;
-  int32_t len = decodeValueFunc((void*)valStr, vlen, NULL, (char**)pVal);
+  int32_t     len = decodeValueFunc((void*)valStr, vlen, NULL, (char**)pVal);
   if (len < 0) {
     return -1;
   }
diff --git a/source/libs/stream/src/streamDispatch.c b/source/libs/stream/src/streamDispatch.c
index f8fa7b024a..f246a781c6 100644
--- a/source/libs/stream/src/streamDispatch.c
+++ b/source/libs/stream/src/streamDispatch.c
@@ -443,9 +443,9 @@ static int32_t doDispatchCheckpointMsg(SStreamTask* pTask, const SStreamCheckpoi
   }
   tEncoderClear(&encoder);
 
-  initRpcMsg(&msg,TDMT_STREAM_TASK_CHECKPOINT, buf, tlen + sizeof(SMsgHead));
-  qDebug("s-task:%s (level:%d, vgId:%d) dispatch checkpoint msg to s-task:0x%" PRIx64 ":0x%x (vgId:%d)", pTask->id.idStr,
-         pTask->info.taskLevel, pTask->info.nodeId, pReq->streamId, pReq->downstreamTaskId, nodeId);
+  initRpcMsg(&msg, TDMT_STREAM_TASK_CHECKPOINT, buf, tlen + sizeof(SMsgHead));
+  qDebug("s-task:%s (level:%d, vgId:%d) dispatch checkpoint msg to s-task:0x%" PRIx64 ":0x%x (vgId:%d)",
+         pTask->id.idStr, pTask->info.taskLevel, pTask->info.nodeId, pReq->streamId, pReq->downstreamTaskId, nodeId);
 
   tmsgSendReq(pEpSet, &msg);
   return 0;
@@ -518,16 +518,16 @@ int32_t streamTaskSendCheckpointRsp(SStreamTask* pTask) {
   int32_t num = taosArrayGetSize(pTask->pRpcMsgList);
   ASSERT(taosArrayGetSize(pTask->pUpstreamInfoList) == num);
 
-  qDebug("s-task:%s level:%d checkpoint completed msg sent to %d upstream tasks", pTask->id.idStr, pTask->info.taskLevel,
-         num);
+  qDebug("s-task:%s level:%d checkpoint completed msg sent to %d upstream tasks", pTask->id.idStr,
+         pTask->info.taskLevel, num);
 
-  for(int32_t i = 0; i < num; ++i) {
+  for (int32_t i = 0; i < num; ++i) {
     SRpcMsg* pMsg = taosArrayGet(pTask->pRpcMsgList, i);
     tmsgSendRsp(pMsg);
   }
 
   taosArrayClear(pTask->pRpcMsgList);
-  qDebug("s-task:%s level:%d source checkpoint completed msg sent to upstream", pTask->id.idStr);
+  qDebug("s-task:%s level:%d source checkpoint completed msg sent to upstream", pTask->id.idStr, pTask->info.taskLevel);
 
   return TSDB_CODE_SUCCESS;
 }
@@ -540,7 +540,7 @@ int32_t streamTaskSendCheckpointSourceRsp(SStreamTask* pTask) {
   tmsgSendRsp(pMsg);
 
   taosArrayClear(pTask->pRpcMsgList);
-  qDebug("s-task:%s level:%d source checkpoint completed msg sent to mnode", pTask->id.idStr);
+  qDebug("s-task:%s level:%d source checkpoint completed msg sent to mnode", pTask->id.idStr, pTask->info.taskLevel);
 
   return TSDB_CODE_SUCCESS;
 }
@@ -631,7 +631,7 @@ int32_t doDispatchScanHistoryFinishMsg(SStreamTask* pTask, const SStreamScanHist
   tEncoderClear(&encoder);
 
   msg.info.noResp = 1;
-  initRpcMsg(&msg,TDMT_STREAM_SCAN_HISTORY_FINISH, buf, tlen + sizeof(SMsgHead));
+  initRpcMsg(&msg, TDMT_STREAM_SCAN_HISTORY_FINISH, buf, tlen + sizeof(SMsgHead));
 
   tmsgSendReq(pEpSet, &msg);
   const char* pStatus = streamGetTaskStatusStr(pTask->status.taskStatus);
@@ -797,7 +797,7 @@ int32_t streamAddCheckpointSourceRspMsg(SStreamCheckpointSourceReq* pReq, SRpcHa
   SRpcMsg rspMsg = {.code = 0, .pCont = pBuf, .contLen = sizeof(SMsgHead) + len, .info = *pRpcInfo};
   taosArrayPush(pTask->pRpcMsgList, &rspMsg);
 
-  qDebug("s-task:%s add checkpoint rsp msg, total:%d", pTask->id.idStr, (int32_t) taosArrayGetSize(pTask->pRpcMsgList));
+  qDebug("s-task:%s add checkpoint rsp msg, total:%d", pTask->id.idStr, (int32_t)taosArrayGetSize(pTask->pRpcMsgList));
   return TSDB_CODE_SUCCESS;
 }
 
diff --git a/source/libs/stream/src/tstreamFileState.c b/source/libs/stream/src/tstreamFileState.c
index 063c15e4f3..6d61f65394 100644
--- a/source/libs/stream/src/tstreamFileState.c
+++ b/source/libs/stream/src/tstreamFileState.c
@@ -386,7 +386,7 @@ int32_t flushSnapshot(SStreamFileState* pFileState, SStreamSnapshot* pSnapshot,
                                        0, buf);
     // todo handle failure
     memset(buf, 0, len);
-//    qDebug("===stream===put %" PRId64 " to disc, res %d", sKey.key.ts, code);
+    //    qDebug("===stream===put %" PRId64 " to disc, res %d", sKey.key.ts, code);
   }
   taosMemoryFree(buf);
 
@@ -397,8 +397,8 @@ int32_t flushSnapshot(SStreamFileState* pFileState, SStreamSnapshot* pSnapshot,
   streamStateClearBatch(batch);
 
   int64_t elapsed = taosGetTimestampMs() - st;
-  qDebug("%s flush to disk in batch model completed, rows:%d, batch size:%d, elapsed time:%"PRId64"ms", pFileState->id, numOfElems,
-         BATCH_LIMIT, elapsed);
+  qDebug("%s flush to disk in batch model completed, rows:%d, batch size:%d, elapsed time:%" PRId64 "ms",
+         pFileState->id, numOfElems, BATCH_LIMIT, elapsed);
 
   if (flushState) {
     const char* taskKey = "streamFileState";
@@ -488,8 +488,6 @@ int32_t recoverSnapshot(SStreamFileState* pFileState, int64_t ckId) {
                        : pFileState->maxTs - pFileState->deleteMark;
     deleteExpiredCheckPoint(pFileState, mark);
   }
-  void*   pStVal = NULL;
-  int32_t len = 0;
 
   SWinKey          key = {.groupId = 0, .ts = 0};
   SStreamStateCur* pCur = streamStateSeekToLast_rocksdb(pFileState->pFileStore, &key);
@@ -511,6 +509,7 @@ int32_t recoverSnapshot(SStreamFileState* pFileState, int64_t ckId) {
       taosMemoryFreeClear(pNode);
       break;
     }
+    ASSERT(pVLen == pFileState->rowSize);
     memcpy(pNewPos->pRowBuff, pVal, pVLen);
     code = tSimpleHashPut(pFileState->rowBuffMap, pNewPos->pKey, pFileState->keyLen, &pNewPos, POINTER_BYTES);
     if (code != TSDB_CODE_SUCCESS) {
diff --git a/tests/script/tsim/stream/checkpoint0.sim b/tests/script/tsim/stream/checkpoint0.sim
index 3f2457347a..325667ee2b 100644
--- a/tests/script/tsim/stream/checkpoint0.sim
+++ b/tests/script/tsim/stream/checkpoint0.sim
@@ -49,6 +49,12 @@ if $data02 != 3 then
   goto loop0
 endi
 
+print waiting for checkpoint generation ......
+
+sleep 25000
+
+print restart taosd
+
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
 
 system sh/exec.sh -n dnode1 -s start