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From "Varun Vasudev (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3998) Add support in the NodeManager to re-launch containers
Date Mon, 22 Aug 2016 10:21:21 GMT

    [ https://issues.apache.org/jira/browse/YARN-3998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15430517#comment-15430517
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Varun Vasudev commented on YARN-3998:
-------------------------------------

My apologies for missing this [~asuresh]. What do you think the right fix is?

> Add support in the NodeManager to re-launch containers
> ------------------------------------------------------
>
>                 Key: YARN-3998
>                 URL: https://issues.apache.org/jira/browse/YARN-3998
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Jun Gong
>            Assignee: Jun Gong
>             Fix For: 2.9.0
>
>         Attachments: YARN-3998.01.patch, YARN-3998.02.patch, YARN-3998.03.patch, YARN-3998.04.patch,
YARN-3998.05.patch, YARN-3998.06.patch, YARN-3998.07.patch, YARN-3998.08.patch, YARN-3998.09.patch
>
>
> I'd like to add a field(retry-times) in ContainerLaunchContext. When AM launches containers,
it could specify the value. Then NM will re-launch the container 'retry-times' times when
it fails to run(e.g.exit code is not 0). 
> It will save a lot of time. It avoids container localization. RM does not need to re-schedule
the container. And local files in container's working directory will be left for re-use.(If
container have downloaded some big files, it does not need to re-download them when running
again.) 
> We find it is useful in systems like Storm.



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