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From "Yongjun Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1681) Federation: support per pool and per node policies in Balancer
Date Wed, 12 Nov 2014 02:15:34 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1681?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14207552#comment-14207552
] 

Yongjun Zhang commented on HDFS-1681:
-------------------------------------

Many thanks Nicholas!


> Federation: support per pool and per node policies in Balancer
> --------------------------------------------------------------
>
>                 Key: HDFS-1681
>                 URL: https://issues.apache.org/jira/browse/HDFS-1681
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: balancer & mover
>    Affects Versions: Federation Branch
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Tsz Wo Nicholas Sze
>             Fix For: Federation Branch
>
>         Attachments: 4213426.patch
>
>
> Change balancer to support per pool and per node policies.
> *per Node*: Cluster is balance if each node is balance.
> *per Pool*: Cluster is balance if each pool is balance.
> Note that per Pool implies per Node but NOT the other way around.



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