Github user JoshRosen commented on a diff in the pull request: https://github.com/apache/spark/pull/18083#discussion_r118431688 --- Diff: core/src/main/scala/org/apache/spark/scheduler/LiveListenerBus.scala --- @@ -124,11 +136,13 @@ private[spark] class LiveListenerBus(val sparkContext: SparkContext) extends Spa logError(s"$name has already stopped! Dropping event $event") return } + metrics.numEventsReceived.inc() --- End diff -- Yes. My idea was to have a counter which is incremented whenever an event is received, regardless of how it ends up being processed.
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