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https://issues.apache.org/jira/browse/PIG-2672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13779279#comment-13779279
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Aniket Mokashi commented on PIG-2672:
-------------------------------------
Thanks everyone for the comments!
We might need little more refactoring before we change permissions on temporary
path. Currently FileLocalizer.getTemporaryPath(pigContext); is getting used for
several things. (+for intermediate data, I think). Let me open a jira to track
that.
I will try with your approach (shared user cache) and submit a new patch soon.
> Optimize the use of DistributedCache
> ------------------------------------
>
> Key: PIG-2672
> URL: https://issues.apache.org/jira/browse/PIG-2672
> Project: Pig
> Issue Type: Improvement
> Reporter: Rohini Palaniswamy
> Fix For: 0.12.0
>
> Attachments: PIG-2672.patch
>
>
> Pig currently copies jar files to a temporary location in hdfs and then adds
> them to DistributedCache for each job launched. This is inefficient in terms
> of
> * Space - The jars are distributed to task trackers for every job taking
> up lot of local temporary space in tasktrackers.
> * Performance - The jar distribution impacts the job launch time.
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