Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/21221#discussion_r210492311
--- Diff: core/src/main/scala/org/apache/spark/executor/Executor.scala ---
@@ -216,8 +217,7 @@ private[spark] class Executor(
def stop(): Unit = {
env.metricsSystem.report()
- heartbeater.shutdown()
- heartbeater.awaitTermination(10, TimeUnit.SECONDS)
+ heartbeater.stop()
--- End diff --
future: `try {} catch { case NonFatal(e)`?
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