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https://issues.apache.org/jira/browse/HADOOP-3366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12596478#action_12596478
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Sameer Paranjpye commented on HADOOP-3366:
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What value does the RamFS add here? It would be simpler to just put keys/values
in a buffer and iterate over them in place. I don't see the value in special
casing DataOutputBuffer for this very specific use case.
> Shuffle/Merge improvements
> --------------------------
>
> Key: HADOOP-3366
> URL: https://issues.apache.org/jira/browse/HADOOP-3366
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Arun C Murthy
> Assignee: Arun C Murthy
> Fix For: 0.18.0
>
>
> This is intended to be a meta-issue to track various improvements to
> shuffle/merge in the reducer.
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