fix bugs for high throughput of query request

src/system/detail/src/vnodeQueryProcess.c

@@ -1213,8 +1213,8 @@ void vnodeSingleMeterQuery(SSchedMsg *pMsg) {
 
     dTrace("QInfo:%p reset signature", pQInfo);
 
-    TSDB_QINFO_RESET_SIG(pQInfo);
     sem_post(&pQInfo->dataReady);
+    TSDB_QINFO_RESET_SIG(pQInfo);
 
     return;
   }
@@ -1235,8 +1235,8 @@ void vnodeSingleMeterQuery(SSchedMsg *pMsg) {
 
           dTrace("QInfo:%p reset signature", pQInfo);
 
-          TSDB_QINFO_RESET_SIG(pQInfo);
           sem_post(&pQInfo->dataReady);
+          TSDB_QINFO_RESET_SIG(pQInfo);
           return;
         }
       }
@@ -1247,8 +1247,8 @@ void vnodeSingleMeterQuery(SSchedMsg *pMsg) {
            pMeterObj->vnode, pMeterObj->sid, pMeterObj->meterId, pQInfo->pointsRead);
 
     vnodePrintQueryStatistics(pQInfo->pMeterQuerySupporter);
-    TSDB_QINFO_RESET_SIG(pQInfo);
     sem_post(&pQInfo->dataReady);
+    TSDB_QINFO_RESET_SIG(pQInfo);
 
     return;
   }
@@ -1284,8 +1284,8 @@ void vnodeSingleMeterQuery(SSchedMsg *pMsg) {
            pQInfo, pMeterObj->vnode, pMeterObj->sid, pMeterObj->meterId, pQuery->pointsRead);
   }
 
-  TSDB_QINFO_RESET_SIG(pQInfo);
   sem_post(&pQInfo->dataReady);
+  TSDB_QINFO_RESET_SIG(pQInfo);
 }
 
 void vnodeMultiMeterQuery(SSchedMsg *pMsg) {
@@ -1335,6 +1335,6 @@ void vnodeMultiMeterQuery(SSchedMsg *pMsg) {
     vnodePrintQueryStatistics(pSupporter);
   }
 
-  TSDB_QINFO_RESET_SIG(pQInfo);
   sem_post(&pQInfo->dataReady);
+  TSDB_QINFO_RESET_SIG(pQInfo);
 }

src/system/detail/src/vnodeShell.c

@@ -473,7 +473,7 @@ void vnodeExecuteRetrieveReq(SSchedMsg *pSched) {
 
   if (numOfRows == 0 && (pRetrieve->qhandle == (uint64_t)pObj->qhandle) && (code != TSDB_CODE_ACTION_IN_PROGRESS)) {
     dTrace("QInfo:%p %s free qhandle code:%d", pObj->qhandle, __FUNCTION__, code);
-    vnodeFreeQInfoInQueue(pObj->qhandle);
+    vnodeFreeQInfo(pObj->qhandle);
     pObj->qhandle = NULL;
   }
 
@@ -481,8 +481,6 @@ void vnodeExecuteRetrieveReq(SSchedMsg *pSched) {
 
 _exit:
   free(pSched->msg);
-
-  return;
 }
 
 int vnodeProcessRetrieveRequest(char *pMsg, int msgLen, SShellObj *pObj) {