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https://issues.apache.org/jira/browse/SPARK-24334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16483004#comment-16483004
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Li Jin commented on SPARK-24334:
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I have done some investigation and will submit a PR soon.
> Race condition in ArrowPythonRunner causes unclean shutdown of Arrow memory
> allocator
> -------------------------------------------------------------------------------------
>
> Key: SPARK-24334
> URL: https://issues.apache.org/jira/browse/SPARK-24334
> Project: Spark
> Issue Type: Sub-task
> Components: PySpark
> Affects Versions: 2.3.0
> Reporter: Li Jin
> Priority: Major
>
> Currently, ArrowPythonRunner has two thread that frees the Arrow vector
> schema root and allocator - The main writer thread and task completion
> listener thread.
> Having both thread doing the clean up leads to weird case (e.g., negative ref
> cnt, NPE, and memory leak exception) when an exceptions are thrown from the
> user function.
>
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