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From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6010) Make balancer able to balance data among specified servers
Date Thu, 06 Mar 2014 00:04:42 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13921673#comment-13921673
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Tsz Wo Nicholas Sze commented on HDFS-6010:
-------------------------------------------

> ..., in some particular case, we would need to balance data only among specified nodes
instead of the whole set.

Hi Yu, it is also not clear to me the use cases.  Could you describe it in more details?

> 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
>         Attachments: HDFS-6010-trunk.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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