fix(stream): set the correct rps flag as the dispatch rsp.

source/libs/stream/src/stream.c

@@ -233,8 +233,7 @@ int32_t streamProcessDispatchMsg(SStreamTask* pTask, SStreamDispatchReq* pReq, S
 }
 
 int32_t streamProcessDispatchRsp(SStreamTask* pTask, SStreamDispatchRsp* pRsp, int32_t code) {
-  ASSERT(pRsp->inputStatus == TASK_OUTPUT_STATUS__NORMAL || pRsp->inputStatus == TASK_OUTPUT_STATUS__BLOCKED);
-  qDebug("s-task:%s receive dispatch rsp, code: %x", pTask->id.idStr, code);
+  qDebug("s-task:%s receive dispatch rsp, status:%d code:%d", pTask->id.idStr, pRsp->inputStatus, code);
 
   if (pTask->outputType == TASK_OUTPUT__SHUFFLE_DISPATCH) {
     int32_t leftRsp = atomic_sub_fetch_32(&pTask->shuffleDispatcher.waitingRspCnt, 1);
@@ -246,13 +245,16 @@ int32_t streamProcessDispatchRsp(SStreamTask* pTask, SStreamDispatchRsp* pRsp, i
 
   int8_t old = atomic_exchange_8(&pTask->outputStatus, pRsp->inputStatus);
   ASSERT(old == TASK_OUTPUT_STATUS__WAIT);
+
+  // the input queue of the (down stream) task that receive the output data is full, so the TASK_INPUT_STATUS_BLOCKED is rsp
+  // todo we need to send EMPTY PACKAGE to detect if the input queue is available for output of upstream task, every 50 ms.
   if (pRsp->inputStatus == TASK_INPUT_STATUS__BLOCKED) {
     // TODO: init recover timer
-    ASSERT(0);
+    qError("s-task:%s inputQ of downstream task:0x%x is full, need to block output", pTask->id.idStr, pRsp->downstreamTaskId);
     return 0;
   }
 
-  // continue dispatch one block to down stream in pipeline
+  // otherwise, continue dispatch the first block to down stream task in pipeline
   streamDispatchStreamBlock(pTask);
   return 0;
 }