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https://issues.apache.org/jira/browse/MAPREDUCE-3871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13265179#comment-13265179
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Alejandro Abdelnur commented on MAPREDUCE-3871:
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+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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