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https://issues.apache.org/jira/browse/SPARK-22655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16271626#comment-16271626
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Apache Spark commented on SPARK-22655:
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User 'icexelloss' has created a pull request for this issue:
https://github.com/apache/spark/pull/19852
> Fail task instead of complete task silently in PythonRunner during shutdown
> ---------------------------------------------------------------------------
>
> Key: SPARK-22655
> URL: https://issues.apache.org/jira/browse/SPARK-22655
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 2.0.2, 2.1.0, 2.2.0
> Reporter: Li Jin
>
> We have observed in our production environment that during Spark shutdown, if
> there are some active tasks, sometimes they will complete with incorrect
> results. We've tracked down the issue to a PythonRunner where it is returning
> partial result instead of throwing exception during Spark shutdown.
> I think the better way to handle this is to have these tasks fail instead of
> complete with partial results (complete with partial is always bad IMHO)
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