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https://issues.apache.org/jira/browse/HADOOP-3365?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12596745#action_12596745
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Hudson commented on HADOOP-3365:
--------------------------------
Integrated in Hadoop-trunk #491 (See
[http://hudson.zones.apache.org/hudson/job/Hadoop-trunk/491/])
> SequenceFile.Sorter.MergeQueue.next does an unnecessary copy of the key
> -----------------------------------------------------------------------
>
> Key: HADOOP-3365
> URL: https://issues.apache.org/jira/browse/HADOOP-3365
> Project: Hadoop Core
> Issue Type: Bug
> Components: io
> Affects Versions: 0.17.0
> Reporter: Arun C Murthy
> Assignee: Devaraj Das
> Fix For: 0.18.0
>
> Attachments: 3365.patch, 3365.patch, 3365.patch
>
>
> SequenceFile.Sorter.MergeQueue.next does an unnecessary copy of the *rawKey*.
> We should remove that copy, and move code which adjusts the _heap_ from
> {{next()}} to {{getKey()}}, which should then just return {{ms.getKey()}},
> thereby eliminating the extra copy.
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