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https://issues.apache.org/jira/browse/SPARK-6629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-6629:
-----------------------------------
Assignee: Josh Rosen (was: Apache Spark)
> cancelJobGroup() may not work for jobs whose job groups are inherited from
> parent threads
> -----------------------------------------------------------------------------------------
>
> Key: SPARK-6629
> URL: https://issues.apache.org/jira/browse/SPARK-6629
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.0.2, 1.1.2, 1.2.2, 1.3.0
> Reporter: Josh Rosen
> Assignee: Josh Rosen
> Priority: Minor
>
> When a job is submitted with a job group and that job group is inherited from
> a parent thread, there are multiple bugs that may prevent this job from being
> cancelable via SparkContext.cancelJobGroup():
> - When filtering jobs based on their job group properties, DAGScheduler calls
> get() instead of getProperty(), which does not respect inheritance, so it
> will skip over jobs whose groups were inherited.
> - Properties objects are mutable, but we do not make defensive copies /
> snapshots, so modifications of the parent thread's job group will cause
> running jobs' groups to change.
> Both of these issues are easy to fix: use `getProperty()` and perform
> defensive copying.
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