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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-253) Container launch may fail if no files were localized
Date Mon, 03 Dec 2012 12:23:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13508685#comment-13508685
] 

Tom White commented on YARN-253:
--------------------------------

I see that you removed the change in MAPREDUCE-4427 because it was an unrelated bug, which
made sense in the context of that work. I'm curious to hear if there's a better fix than creating
parent directories on demand.
                
> Container launch may fail if no files were localized
> ----------------------------------------------------
>
>                 Key: YARN-253
>                 URL: https://issues.apache.org/jira/browse/YARN-253
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.0.2-alpha
>            Reporter: Tom White
>            Assignee: Tom White
>         Attachments: YARN-253.patch, YARN-253-test.patch
>
>
> This can be demonstrated with DistributedShell. The containers running the shell do not
have any files to localize (if there is no shell script to copy) so if they run on a different
NM to the AM (which does localize files), then they will fail since the appcache directory
does not exist.

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