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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3871) Allow symlinking in LocalJobRunner DistributedCache
Date Mon, 30 Apr 2012 20:29:49 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13265179#comment-13265179
] 

Alejandro Abdelnur commented on MAPREDUCE-3871:
-----------------------------------------------

+1. looks good, a small nit, I'd check for 'link != null' before calling the symlinking method,
else give the impression the you are always symlinking.
                
> Allow symlinking in LocalJobRunner DistributedCache
> ---------------------------------------------------
>
>                 Key: MAPREDUCE-3871
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3871
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: distributed-cache
>            Reporter: Tom White
>            Assignee: Tom White
>         Attachments: MAPREDUCE-3871.patch, MAPREDUCE-3871.patch
>
>
> Currently the LocalJobRunner doesn't create symlinks for files in the DistributedCache.
It is safe to create symlinks if files of the same name don't exist. LocalJobRunner should
also delete the symlinks when the job has completed.

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