Github user kiszk commented on a diff in the pull request: https://github.com/apache/spark/pull/22335#discussion_r215149786 --- Diff: core/src/main/scala/org/apache/spark/status/AppStatusListener.scala --- @@ -646,8 +646,17 @@ private[spark] class AppStatusListener( } override def onUnpersistRDD(event: SparkListenerUnpersistRDD): Unit = { - liveRDDs.remove(event.rddId) - kvstore.delete(classOf[RDDStorageInfoWrapper], event.rddId) + while (true) { --- End diff -- This code may never cause infinite loop. Since `liveRDDs` is just a `HashMap` (not a `concurrentHashMap` or others), update by other threads may not be visible in this loop.
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