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https://issues.apache.org/jira/browse/PIG-2672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13883478#comment-13883478
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Dmitriy V. Ryaboy commented on PIG-2672:
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[~knoguchi] in the spirit of keeping things moving -- can we commit this? You
can feel free to turn the behavior off on your cluster if you are worried about
the 1 week boundary. If that's the case, feel free to open another ticket to
follow up, or to make sure that YARN-1492 fixes your issue.
> 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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