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https://issues.apache.org/jira/browse/HADOOP-5675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12706157#action_12706157
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Hudson commented on HADOOP-5675:
--------------------------------
Integrated in Hadoop-trunk #827 (See
[http://hudson.zones.apache.org/hudson/job/Hadoop-trunk/827/])
. Do not launch a job if DistCp has no work to do. Contributed by Tsz Wo
(Nicholas), SZE
> DistCp should not launch a job if it is not necessary
> -----------------------------------------------------
>
> Key: HADOOP-5675
> URL: https://issues.apache.org/jira/browse/HADOOP-5675
> Project: Hadoop Core
> Issue Type: Improvement
> Components: tools/distcp
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Priority: Minor
> Fix For: 0.21.0
>
> Attachments: 5675_20090414.patch, 5675_20090421.patch,
> 5675_20090422.patch, 5675_20090428.patch
>
>
> Currently, DistCp launch a job even if it is not necessary. In such case,
> the job does nothing.
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