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https://issues.apache.org/jira/browse/HDFS-6010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14061561#comment-14061561
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Hadoop QA commented on HDFS-6010:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  
http://issues.apache.org/jira/secure/attachment/12636334/HDFS-6010-trunk_V2.patch
  against trunk revision .

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7343//console

This message is automatically generated.

> Make balancer able to balance data among specified servers
> ----------------------------------------------------------
>
>                 Key: HDFS-6010
>                 URL: https://issues.apache.org/jira/browse/HDFS-6010
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: balancer
>    Affects Versions: 2.3.0
>            Reporter: Yu Li
>            Assignee: Yu Li
>            Priority: Minor
>              Labels: balancer
>         Attachments: HDFS-6010-trunk.patch, HDFS-6010-trunk_V2.patch
>
>
> Currently, the balancer tool balances data among all datanodes. However, in 
> some particular case, we would need to balance data only among specified 
> nodes instead of the whole set.
> In this JIRA, a new "-servers" option would be introduced to implement this.



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