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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2902) Killing a container that is localizing can orphan resources in the DOWNLOADING state
Date Tue, 06 Jan 2015 23:19:37 GMT

    [ https://issues.apache.org/jira/browse/YARN-2902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14266947#comment-14266947
] 

Jason Lowe commented on YARN-2902:
----------------------------------

Sorry for the delay, Varun, as I was busy with end-of-year items and vacation.  I'll try to
get to this by the end of the week.

> Killing a container that is localizing can orphan resources in the DOWNLOADING state
> ------------------------------------------------------------------------------------
>
>                 Key: YARN-2902
>                 URL: https://issues.apache.org/jira/browse/YARN-2902
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>    Affects Versions: 2.5.0
>            Reporter: Jason Lowe
>            Assignee: Varun Saxena
>             Fix For: 2.7.0
>
>         Attachments: YARN-2902.002.patch, YARN-2902.patch
>
>
> If a container is in the process of localizing when it is stopped/killed then resources
are left in the DOWNLOADING state.  If no other container comes along and requests these resources
they linger around with no reference counts but aren't cleaned up during normal cache cleanup
scans since it will never delete resources in the DOWNLOADING state even if their reference
count is zero.



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