skonto commented on a change in pull request #24796: [SPARK-27900][CORE] Add
uncaught exception handler to the driver
URL: https://github.com/apache/spark/pull/24796#discussion_r290532870
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File path: core/src/main/scala/org/apache/spark/util/ShutdownHookManager.scala
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@@ -204,6 +204,11 @@ private [util] class SparkShutdownHookManager {
hooks.synchronized { hooks.remove(ref) }
}
+ def clear(): Unit = {
Review comment:
@srowen here it is:
https://gist.github.com/skonto/74181e434a727901d4f3323461c1050b
I commented out the clear call. One other thing I noticed is that the main
thread is also stuck here:
https://github.com/apache/spark/blob/bfb3ffe9b33a403a1f3b6f5407d34a477ce62c85/core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala#L736
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