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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3024) LocalizerRunner should give DIE action when all resources are localized
Date Mon, 23 Mar 2015 20:16:54 GMT

    [ https://issues.apache.org/jira/browse/YARN-3024?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14376556#comment-14376556
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Karthik Kambatla commented on YARN-3024:
----------------------------------------

[~chengbing.liu] - thanks for the clarifications. Makes sense.

For the TODOs, it would be nice to have follow-up JIRAs. If it is not too much trouble, can
you create them so interested contributors could follow up? 

> LocalizerRunner should give DIE action when all resources are localized
> -----------------------------------------------------------------------
>
>                 Key: YARN-3024
>                 URL: https://issues.apache.org/jira/browse/YARN-3024
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.6.0
>            Reporter: Chengbing Liu
>            Assignee: Chengbing Liu
>             Fix For: 2.7.0
>
>         Attachments: YARN-3024.01.patch, YARN-3024.02.patch, YARN-3024.03.patch, YARN-3024.04.patch
>
>
> We have observed that {{LocalizerRunner}} always gives a LIVE action at the end of localization
process.
> The problem is {{findNextResource()}} can return null even when {{pending}} was not empty
prior to the call. This method removes localized resources from {{pending}}, therefore we
should check the return value, and gives DIE action when it returns null.



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