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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-1338) Recover localized resource cache state upon nodemanager restart
Date Wed, 09 Apr 2014 15:32:24 GMT

     [ https://issues.apache.org/jira/browse/YARN-1338?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason Lowe updated YARN-1338:
-----------------------------

    Attachment: YARN-1338v2.patch

Updating patch after YARN-1757 and other recent changes on trunk.

> 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
>
>
> 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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