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https://issues.apache.org/jira/browse/ACCUMULO-387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13210315#comment-13210315
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Joey Echeverria commented on ACCUMULO-387:
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I would only force compact if you're going to run over the clone multiple
times. Otherwise you're going to pay the same cost of reading the
non-sequential data, plus writing it back out, plus reading the sequential
copy. I don't see how that's a net win.
> Support map reduce directly over files
> --------------------------------------
>
> Key: ACCUMULO-387
> URL: https://issues.apache.org/jira/browse/ACCUMULO-387
> Project: Accumulo
> Issue Type: New Feature
> Reporter: Keith Turner
> Assignee: Eric Newton
> Fix For: 1.4.1
>
>
> Support map reduce jobs that directly read Accumulo files.
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