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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1338) Recover localized resource cache state upon nodemanager restart
Date Thu, 29 May 2014 15:36:02 GMT

    [ https://issues.apache.org/jira/browse/YARN-1338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14012451#comment-14012451
] 

Junping Du commented on YARN-1338:
----------------------------------

+1. Patch looks good to me. Thanks for this significant patch contribution, [~jlowe]! I will
commit it shortly.

> Recover localized resource cache state upon nodemanager restart
> ---------------------------------------------------------------
>
>                 Key: YARN-1338
>                 URL: https://issues.apache.org/jira/browse/YARN-1338
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>    Affects Versions: 2.3.0
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>         Attachments: YARN-1338.patch, YARN-1338v2.patch, YARN-1338v3-and-YARN-1987.patch,
YARN-1338v4.patch, YARN-1338v5.patch, YARN-1338v6.patch
>
>
> Today when node manager restarts we clean up all the distributed cache files from disk.
This is definitely not ideal from 2 aspects.
> * For work preserving restart we definitely want them as running containers are using
them
> * For even non work preserving restart this will be useful in the sense that we don't
have to download them again if needed by future tasks.



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