Github user jiangxb1987 commented on a diff in the pull request: https://github.com/apache/spark/pull/20893#discussion_r176978788 --- Diff: core/src/main/scala/org/apache/spark/launcher/LauncherBackend.scala --- @@ -114,10 +114,10 @@ private[spark] abstract class LauncherBackend { override def close(): Unit = { try { + _isConnected = false super.close() } finally { onDisconnected() --- End diff -- I searched the code and seems this is a no-op?
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