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https://issues.apache.org/jira/browse/HDFS-6010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14061556#comment-14061556
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Tsz Wo Nicholas Sze commented on HDFS-6010:
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[~carp84], have you looked at HDFS-6441?
> 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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