Github user janewangfb commented on a diff in the pull request: https://github.com/apache/spark/pull/18492#discussion_r133355548 --- Diff: core/src/main/scala/org/apache/spark/scheduler/SparkListener.scala --- @@ -291,6 +297,16 @@ private[spark] trait SparkListenerInterface { def onBlockUpdated(blockUpdated: SparkListenerBlockUpdated): Unit /** + * Called when a speculative task is submitted + */ + def onSpeculativeTaskSubmitted(speculativeTask: SparkListenerSpeculativeTaskSubmitted): Unit + + /** + * Called when an extra executor is needed + */ + def onExtraExecutorNeeded(): Unit --- End diff -- @cloud-fan after thoughts, yes, I think we can get rid of extraExecutorNeeded event and handle it in ExecutorAllocationManager.scala.
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