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Posted to dev@hive.apache.org by "guojh (Jira)" <ji...@apache.org> on 2020/12/02 05:45:00 UTC

[jira] [Created] (HIVE-24467) ConditionalTask remove other tasks exists thread safety problem

guojh created HIVE-24467:
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             Summary: ConditionalTask remove other tasks exists thread safety problem
                 Key: HIVE-24467
                 URL: https://issues.apache.org/jira/browse/HIVE-24467
             Project: Hive
          Issue Type: Bug
          Components: Hive
    Affects Versions: 2.3.4
            Reporter: guojh


When hive execute jobs in parallel(control by “hive.exec.parallel” parameter), ConditionalTasks run parallel to remove the tasks that not pick to run, because there are thread safety issues, some task may not remove from the dependent task tree. This is a very serious bug, which causes some stage task not trigger execution.



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