jolshan commented on code in PR #13391:
URL: https://github.com/apache/kafka/pull/13391#discussion_r1164335669
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core/src/main/scala/kafka/server/KafkaRequestHandler.scala:
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@@ -69,20 +108,52 @@ class KafkaRequestHandler(id: Int,
completeShutdown()
return
+ case callback: RequestChannel.CallbackRequest =>
+ try {
+ val originalRequest = callback.originalRequest
+
+ // If we've already executed a callback for this request, reset
the times and subtract the callback time from the
+ // new dequeue time. This will allow calculation of multiple
callback times.
+ // Otherwise, set dequeue time to now.
+ if (originalRequest.callbackRequestDequeueTimeNanos.isDefined) {
+ val prevCallbacksTimeNanos =
originalRequest.callbackRequestCompleteTimeNanos.getOrElse(0L) -
originalRequest.callbackRequestDequeueTimeNanos.getOrElse(0L)
+ originalRequest.callbackRequestCompleteTimeNanos = None
+ originalRequest.callbackRequestDequeueTimeNanos =
Some(time.nanoseconds() - prevCallbacksTimeNanos)
+ } else {
+ originalRequest.callbackRequestDequeueTimeNanos =
Some(time.nanoseconds())
+ }
+
+ currentRequest.set(originalRequest)
+ callback.fun()
+ if (originalRequest.callbackRequestCompleteTimeNanos.isEmpty)
Review Comment:
In case a, we set it in the network client
in case b, it is empty and we set it. Then, when executing the next
callback, we take this time and subtract it from the start of the new callback.
This gives us total time of all.
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