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https://issues.apache.org/jira/browse/PIG-2672?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aniket Mokashi updated PIG-2672:
--------------------------------

    Attachment: PIG-2672-5.patch

Another attempt-
Using stagingDir = JobSubmissionFiles.getStagingDir(jobClient, conf); to copy 
the shared files. Obviously, this is not the perfect solution to this problem 
and YARN-1492 will present a better fix for this.

> 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: 0.13.0
>
>         Attachments: PIG-2672-5.patch, 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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