diff --git a/source/libs/stream/src/stream.c b/source/libs/stream/src/stream.c
index 0a02c39bdf6ee26668aebe08623986b1eefba3b9..691d31e64cd8061f5a4a04507864501078ebc4f5 100644
--- a/source/libs/stream/src/stream.c
+++ b/source/libs/stream/src/stream.c
@@ -289,6 +289,7 @@ int32_t streamProcessDispatchRsp(SStreamTask* pTask, SStreamDispatchRsp* pRsp, i
 
   // the input queue of the (down stream) task that receive the output data is full,
   // so the TASK_INPUT_STATUS_BLOCKED is rsp
+  // todo blocking the output status
   if (pRsp->inputStatus == TASK_INPUT_STATUS__BLOCKED) {
     pTask->msgInfo.blockingTs = taosGetTimestampMs(); // record the blocking start time
 
@@ -301,6 +302,13 @@ int32_t streamProcessDispatchRsp(SStreamTask* pTask, SStreamDispatchRsp* pRsp, i
     destroyStreamDataBlock(pTask->msgInfo.pData);
     pTask->msgInfo.pData = NULL;
 
+    if (pTask->msgInfo.blockingTs != 0) {
+      int64_t el = taosGetTimestampMs() - pTask->msgInfo.blockingTs;
+      qDebug("s-task:%s resume to normal from inputQ blocking, idle time:%"PRId64"ms", pTask->id.idStr, el);
+      pTask->msgInfo.blockingTs = 0;
+    }
+
+    // now ready for next data output
     atomic_store_8(&pTask->outputStatus, TASK_OUTPUT_STATUS__NORMAL);
 
     // otherwise, continue dispatch the first block to down stream task in pipeline