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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3998) Add retry-times to let NM re-launch container when it fails to run
Date Mon, 07 Mar 2016 20:20:40 GMT

    [ https://issues.apache.org/jira/browse/YARN-3998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15183634#comment-15183634
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Vinod Kumar Vavilapalli commented on YARN-3998:
-----------------------------------------------

Okay, seems like we are in general agreement.
 - Let's try to look at the unification part in this JIRA itself as it concerns public facing
APIs - even if we don't unify them completely here.
 - I filed YARN-4770 and assigned to myself. [~hex108] / [~vvasudev], feel free to take them
over as you start working on them.
 - [~vvasudev], please also file a sub-task under YARN-4725 for the LCE related work. Tx.

> Add retry-times to let NM re-launch container when it fails to run
> ------------------------------------------------------------------
>
>                 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
>         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
>
>
> 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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