diff --git a/include/libs/stream/tstream.h b/include/libs/stream/tstream.h
index 8dc06849763ab822975553b4723da72412372c8a..3542788b4b429f7a3c545e1325aae35b49bf6580 100644
--- a/include/libs/stream/tstream.h
+++ b/include/libs/stream/tstream.h
@@ -403,7 +403,7 @@ typedef struct {
   int64_t streamId;
   int32_t type;
   int32_t taskId;
-  int32_t dataSrcVgId;
+  int32_t srcVgId;
   int32_t upstreamTaskId;
   int32_t upstreamChildId;
   int32_t upstreamNodeId;
@@ -582,6 +582,7 @@ int32_t streamSetupScheduleTrigger(SStreamTask* pTask);
 int32_t streamProcessRunReq(SStreamTask* pTask);
 int32_t streamProcessDispatchMsg(SStreamTask* pTask, SStreamDispatchReq* pReq, SRpcMsg* pMsg, bool exec);
 int32_t streamProcessDispatchRsp(SStreamTask* pTask, SStreamDispatchRsp* pRsp, int32_t code);
+void streamTaskCloseUpstreamInput(SStreamTask* pTask, int32_t taskId);
 
 int32_t streamProcessRetrieveReq(SStreamTask* pTask, SStreamRetrieveReq* pReq, SRpcMsg* pMsg);
 
diff --git a/source/libs/stream/src/stream.c b/source/libs/stream/src/stream.c
index d73bb1562ec8074d776e7e3608ca9b02682838ea..caf20a499cf4ea621c56302573d709236e46d3f5 100644
--- a/source/libs/stream/src/stream.c
+++ b/source/libs/stream/src/stream.c
@@ -145,7 +145,7 @@ int32_t streamSchedExec(SStreamTask* pTask) {
 int32_t streamTaskEnqueueBlocks(SStreamTask* pTask, const SStreamDispatchReq* pReq, SRpcMsg* pRsp) {
   int8_t status = 0;
 
-  SStreamDataBlock* pBlock = createStreamDataFromDispatchMsg(pReq, STREAM_INPUT__DATA_BLOCK, pReq->dataSrcVgId);
+  SStreamDataBlock* pBlock = createStreamDataFromDispatchMsg(pReq, STREAM_INPUT__DATA_BLOCK, pReq->srcVgId);
   if (pBlock == NULL) {
     streamTaskInputFail(pTask);
     status = TASK_INPUT_STATUS__FAILED;
@@ -235,6 +235,8 @@ int32_t streamTaskOutputResultBlock(SStreamTask* pTask, SStreamDataBlock* pBlock
   return 0;
 }
 
+
+
 static int32_t streamTaskAppendInputBlocks(SStreamTask* pTask, const SStreamDispatchReq* pReq) {
   int8_t status = 0;
 
@@ -272,6 +274,13 @@ static int32_t buildDispatchRsp(const SStreamTask* pTask, const SStreamDispatchR
   return TSDB_CODE_SUCCESS;
 }
 
+void streamTaskCloseUpstreamInput(SStreamTask* pTask, int32_t taskId) {
+  SStreamChildEpInfo* pInfo = streamTaskGetUpstreamTaskEpInfo(pTask, taskId);
+  if (pInfo != NULL) {
+    pInfo->dataAllowed = false;
+  }
+}
+
 int32_t streamProcessDispatchMsg(SStreamTask* pTask, SStreamDispatchReq* pReq, SRpcMsg* pRsp, bool exec) {
   qDebug("s-task:%s receive dispatch msg from taskId:0x%x(vgId:%d), msgLen:%" PRId64, pTask->id.idStr,
          pReq->upstreamTaskId, pReq->upstreamNodeId, pReq->totalLen);
diff --git a/source/libs/stream/src/streamDispatch.c b/source/libs/stream/src/streamDispatch.c
index 7eef42e289ea8037cb1141d76f2295447df08639..a162f0e7703f4ed9edecebe1f946b1232482556e 100644
--- a/source/libs/stream/src/streamDispatch.c
+++ b/source/libs/stream/src/streamDispatch.c
@@ -36,7 +36,7 @@ static int32_t tEncodeStreamDispatchReq(SEncoder* pEncoder, const SStreamDispatc
   if (tEncodeI64(pEncoder, pReq->streamId) < 0) return -1;
   if (tEncodeI32(pEncoder, pReq->taskId) < 0) return -1;
   if (tEncodeI32(pEncoder, pReq->upstreamTaskId) < 0) return -1;
-  if (tEncodeI32(pEncoder, pReq->dataSrcVgId) < 0) return -1;
+  if (tEncodeI32(pEncoder, pReq->srcVgId) < 0) return -1;
   if (tEncodeI32(pEncoder, pReq->upstreamChildId) < 0) return -1;
   if (tEncodeI32(pEncoder, pReq->upstreamNodeId) < 0) return -1;
   if (tEncodeI32(pEncoder, pReq->blockNum) < 0) return -1;