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https://issues.apache.org/jira/browse/SPARK-13958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15200360#comment-15200360
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Apache Spark commented on SPARK-13958:
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User 'sitalkedia' has created a pull request for this issue:
https://github.com/apache/spark/pull/11794
> Executor OOM due to unbounded growth of pointer array in Sorter
> ---------------------------------------------------------------
>
> Key: SPARK-13958
> URL: https://issues.apache.org/jira/browse/SPARK-13958
> Project: Spark
> Issue Type: Bug
> Components: Shuffle, Spark Core
> Affects Versions: 1.6.1
> Reporter: Sital Kedia
>
> While running a job we saw that the executors are OOMing because in
> UnsafeExternalSorter's growPointerArrayIfNecessary function, we are just
> growing the pointer array indefinitely.
> https://github.com/apache/spark/blob/master/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/UnsafeExternalSorter.java#L292
> This is a regression introduced in PR-
> https://github.com/apache/spark/pull/11095
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