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https://issues.apache.org/jira/browse/MAPREDUCE-6235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14298883#comment-14298883
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Allen Wittenauer commented on MAPREDUCE-6235:
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jars are already in zip format, so I'm not sure we're going to get much benefit
from compression.
> Bundle and compress files passed with -libjars prior to uploading and
> distributing
> ----------------------------------------------------------------------------------
>
> Key: MAPREDUCE-6235
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6235
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: distributed-cache, mrv2
> Affects Versions: 2.6.0
> Reporter: Dustin Cote
> Assignee: Dustin Cote
> Priority: Minor
>
> To improve performance, we should upload jars flagged by -libjars as a single
> bundle and expand on arrival instead of uploading the jars one by one. This
> would also reduce network overhead of using the -libjars option.
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