Github user jerryshao commented on a diff in the pull request: https://github.com/apache/spark/pull/19741#discussion_r151305271 --- Diff: resource-managers/yarn/src/main/scala/org/apache/spark/scheduler/cluster/YarnSchedulerBackend.scala --- @@ -268,8 +268,13 @@ private[spark] abstract class YarnSchedulerBackend( logWarning(reason.toString) driverEndpoint.ask[Boolean](r).onFailure { --- End diff -- I think when you use `send`, all the related things as you mentioned above should be changes.
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