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https://issues.apache.org/jira/browse/SPARK-15621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15488869#comment-15488869
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Apache Spark commented on SPARK-15621:
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User 'davies' has created a pull request for this issue:
https://github.com/apache/spark/pull/15089
> BatchEvalPythonExec fails with OOM
> ----------------------------------
>
> Key: SPARK-15621
> URL: https://issues.apache.org/jira/browse/SPARK-15621
> Project: Spark
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Krisztian Szucs
> Assignee: Davies Liu
>
> https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/python/BatchEvalPythonExec.scala#L40
> No matter what the queue grows unboundedly and fails with OOM, even with
> identity `lambda x: x` udf function.
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