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https://issues.apache.org/jira/browse/SPARK-25901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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yogesh garg updated SPARK-25901:
Description:
After a barrier job is terminated (successfully or interrupted), the
accompanying thread created with `Timer` in `BarrierTaskContext` shows in a
waiting state until gc is called. We should probably have just one thread to
schedule all such tasks, since they just log every 60 seconds.
Here's a screen shot of the threads growing with more tasks:
!Screen Shot 2018-10-31 at 11.57.25 AM.png!
Here's a screen shot of constant number of threads with more tasks:
!Screen Shot 2018-10-31 at 11.57.42 AM.png!
was:
After a barrier job is terminated (successfully or interrupted), the
accompanying thread created with `Timer` in `BarrierTaskContext` shows in a
waiting state until gc is called. We should probably have just one thread to
schedule all such tasks, since they just log every 60 seconds.
Here's a screen shot of the threads growing with more tasks:
Here's a screen shot of constant number of threads with more tasks:
> Barrier mode spawns a bunch of threads that get collected on gc
> ---
>
> Key: SPARK-25901
> URL: https://issues.apache.org/jira/browse/SPARK-25901
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
>Affects Versions: 2.4.0
>Reporter: yogesh garg
>Priority: Major
> Attachments: Screen Shot 2018-10-31 at 11.57.25 AM.png, Screen Shot
> 2018-10-31 at 11.57.42 AM.png
>
>
> After a barrier job is terminated (successfully or interrupted), the
> accompanying thread created with `Timer` in `BarrierTaskContext` shows in a
> waiting state until gc is called. We should probably have just one thread to
> schedule all such tasks, since they just log every 60 seconds.
> Here's a screen shot of the threads growing with more tasks:
> !Screen Shot 2018-10-31 at 11.57.25 AM.png!
> Here's a screen shot of constant number of threads with more tasks:
> !Screen Shot 2018-10-31 at 11.57.42 AM.png!
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