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From "Robert Joseph Evans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-426) Failure to download a public resource on a node prevents further downloads of the resource from that node
Date Wed, 27 Feb 2013 15:27:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-426?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13588424#comment-13588424
] 

Robert Joseph Evans commented on YARN-426:
------------------------------------------

The patch looks good to me. +1 I'll check it in.
                
> Failure to download a public resource on a node prevents further downloads of the resource
from that node
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-426
>                 URL: https://issues.apache.org/jira/browse/YARN-426
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.0.3-alpha, 0.23.6
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>            Priority: Critical
>         Attachments: YARN-426.patch
>
>
> If the NM encounters an error while downloading a public resource, it fails to empty
the list of request events corresponding to the resource request in {{attempts}}.  If the
same public resource is subsequently requested on that node, {{PublicLocalizer.addResource}}
will skip the download since it will mistakenly believe a download of that resource is already
in progress.  At that point any container that requests the public resource will just hang
in the {{LOCALIZING}} state.

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