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https://issues.apache.org/jira/browse/PIG-2672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13907473#comment-13907473
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Aniket Mokashi commented on PIG-2672:
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Thanks [~brocknoland]! Looks like it existed even before this
@https://github.com/apache/pig/blob/branch-0.12/src/org/apache/pig/backend/hadoop/executionengine/mapReduceLayer/JobControlCompiler.java#L1524.
Let me open another jira to fix it.
> 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
> Assignee: Aniket Mokashi
> Fix For: 0.13.0
>
> Attachments: PIG-2672-10.patch, PIG-2672-5.patch, PIG-2672-7.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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