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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-24334) Race condition in ArrowPythonRunner causes unclean shutdown of Arrow memory allocator
Date Tue, 22 May 2018 15:18:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-24334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16484130#comment-16484130
] 

Apache Spark commented on SPARK-24334:
--------------------------------------

User 'icexelloss' has created a pull request for this issue:
https://github.com/apache/spark/pull/21397

> 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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