cfmcgrady commented on a change in pull request #31231:
URL: https://github.com/apache/spark/pull/31231#discussion_r560973087
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File path:
sql/core/src/main/scala/org/apache/spark/sql/util/QueryExecutionListener.scala
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@@ -109,6 +109,16 @@ class ExecutionListenerManager private[sql](session:
SparkSession, loadExtension
listenerBus.removeAllListeners()
}
+ /**
+ * Removes [[ExecutionListenerBus]] from LiveListenerBus.queues. people
should call this function
Review comment:
hi, @jaceklaskowski
what do you think of the comment shows as follows?
> Removes [[ExecutionListenerBus]] from LiveListenerBus.queues.
> Each SparkSession has its owner listener manager, and this manager won't
clear by Spark. when you destroy a session, you should call this function to
clean up the listener manager.
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