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Posted to issues@spark.apache.org by "Sandeep Katta (JIRA)" <ji...@apache.org> on 2019/04/02 04:54:00 UTC
[jira] [Commented] (SPARK-27337) QueryExecutionListener never
cleans up listeners from the bus after SparkSession is closed
[ https://issues.apache.org/jira/browse/SPARK-27337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16807406#comment-16807406 ]
Sandeep Katta commented on SPARK-27337:
---------------------------------------
I will test this scenario and if required will raise PR for the same
> QueryExecutionListener never cleans up listeners from the bus after SparkSession is closed
> ------------------------------------------------------------------------------------------
>
> Key: SPARK-27337
> URL: https://issues.apache.org/jira/browse/SPARK-27337
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.0.0
> Reporter: Vinoo Ganesh
> Priority: Critical
> Attachments: image001-1.png
>
>
> As a result of [https://github.com/apache/spark/commit/9690eba16efe6d25261934d8b73a221972b684f3], it looks like there is a memory leak (specifically [https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/util/QueryExecutionListener.scala#L131).]
> Because the Listener Bus on the context still has a reference to the listener (even after the SparkSession is cleared), they are never cleaned up. This means that if you close and remake spark sessions fairly frequently, you're leaking every single time.
>
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