Jackie-Jiang commented on code in PR #13327:
URL: https://github.com/apache/pinot/pull/13327#discussion_r1631594204


##########
pinot-core/src/main/java/org/apache/pinot/core/transport/AsyncQueryResponse.java:
##########
@@ -56,13 +56,17 @@ public AsyncQueryResponse(QueryRouter queryRouter, long 
requestId, Set<ServerRou
     _requestId = requestId;
     int numServersQueried = serversQueried.size();
     _responseMap = new 
ConcurrentHashMap<>(HashUtil.getHashMapCapacity(numServersQueried));
+    _serverRoutingStatsManager = serverRoutingStatsManager;
     for (ServerRoutingInstance serverRoutingInstance : serversQueried) {
+      // Record stats related to query submission just before sending the 
request. Otherwise, if the response is
+      // received immediately, there's a possibility of updating query 
response stats before updating query
+      // submission stats.
+      _serverRoutingStatsManager.recordStatsAfterQuerySubmission(requestId, 
serverRoutingInstance.getInstanceId());

Review Comment:
   Per the method name, this should be put within either 
`markRequestSubmitted()` or `markRequestSent()`



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