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Posted to issues@spark.apache.org by "Wenchen Fan (JIRA)" <ji...@apache.org> on 2019/05/09 11:41:00 UTC

[jira] [Created] (SPARK-27666) Stop python runner threads when task finishes

Wenchen Fan created SPARK-27666:
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             Summary: Stop python runner threads when task finishes
                 Key: SPARK-27666
                 URL: https://issues.apache.org/jira/browse/SPARK-27666
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: Wenchen Fan


When a task finishes, we should stop the threads that are spawned by the Python runner immediately.

https://github.com/apache/spark/pull/24542 fixed the problem that, if the Python runner thread releases the block lock at the end, and the block lock is already released when task finishes, we will hit assertion error.

If we can stop the python runner thread when task finishes, we don't need https://github.com/apache/spark/pull/24542 any more.



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