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https://issues.apache.org/jira/browse/YARN-3712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14559345#comment-14559345
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Vinod Kumar Vavilapalli commented on YARN-3712:
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What is the effect of today's way of doing it synchronously?
Interesting you mention time taking for cleaning docker containers. /cc
[~ashahab], [~sidharta-s] who are looking into that area.
> ContainersLauncher: handle event CLEANUP_CONTAINER asynchronously
> -----------------------------------------------------------------
>
> Key: YARN-3712
> URL: https://issues.apache.org/jira/browse/YARN-3712
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: nodemanager
> Reporter: Jun Gong
> Assignee: Jun Gong
> Attachments: YARN-3712.01.patch, YARN-3712.02.patch
>
>
> It will save some time by handling event CLEANUP_CONTAINER asynchronously.
> This improvement will be useful for cases that cleaning up container cost a
> little long time(e.g. for our case: we are running Docker container on NM, it
> will take above 1 seconds to clean up one docker container. ) and many
> containers to clean up(e.g. NM need clean up all running containers when NM
> shutdown).
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