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https://issues.apache.org/jira/browse/SPARK-21492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16765378#comment-16765378
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Tao Luo edited comment on SPARK-21492 at 2/12/19 9:35 AM:
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I'll take a stab at this jira, should have something to review today or
tomorrow.
[https://github.com/apache/spark/pull/23762] (took some inspiration from Zhan's
patch)
I'd appreciate a review, and pointers on modifying code-gen portion.
was (Author: taoluo):
I'll take a stab at this jira, should have something to review today or
tomorrow.
> Memory leak in SortMergeJoin
> ----------------------------
>
> Key: SPARK-21492
> URL: https://issues.apache.org/jira/browse/SPARK-21492
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0, 2.3.0, 2.3.1, 3.0.0
> Reporter: Zhan Zhang
> Priority: Major
>
> In SortMergeJoin, if the iterator is not exhausted, there will be memory leak
> caused by the Sort. The memory is not released until the task end, and cannot
> be used by other operators causing performance drop or OOM.
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