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https://issues.apache.org/jira/browse/HIVE-24467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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guojh updated HIVE-24467:
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Description: When hive execute jobs in parallel(control by
“hive.exec.parallel” parameter), ConditionalTasks remove the tasks that not
selected in parallel, 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. (was: 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.)
> 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
> Priority: Major
>
> When hive execute jobs in parallel(control by “hive.exec.parallel”
> parameter), ConditionalTasks remove the tasks that not selected in parallel,
> 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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