Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/18306#discussion_r136516938
--- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala ---
@@ -562,6 +563,8 @@ class SparkContext(config: SparkConf) extends Logging {
}
_cleaner.foreach(_.start())
+ _stopHooks = new SparkShutdownHookManager()
--- End diff --
I think that's my point.
if sc.stop() calls streams.stopAllQueries()
then if someone calls sc.stop() it works
if someone shutdown the JVM, sc.stop() is already getting called.
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