Github user vanzin commented on a diff in the pull request: https://github.com/apache/spark/pull/8093#discussion_r36784216 --- Diff: core/src/main/scala/org/apache/spark/scheduler/cluster/YarnSchedulerBackend.scala --- @@ -110,6 +114,7 @@ private[spark] abstract class YarnSchedulerBackend( addWebUIFilter(filterName, filterParams, proxyBase) case RemoveExecutor(executorId, reason) => + logWarning(reason) --- End diff -- Ah. I guess this is a side-effect of the race between the disconnect and the AM message. Because there's this code in `TaskSchedulerImpl`: override def executorLost(executorId: String, reason: ExecutorLossReason): Unit = { var failedExecutor: Option[String] = None synchronized { if (activeExecutorIds.contains(executorId)) { val hostPort = executorIdToHost(executorId) logError("Lost executor %s on %s: %s".format(executorId, hostPort, reason))
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