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https://issues.apache.org/jira/browse/HDFS-6828?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14091321#comment-14091321
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Jing Zhao commented on HDFS-6828:
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The patch looks good to me too. +1. I will commit the patch shortly.
> Separate block replica dispatching from Balancer
> ------------------------------------------------
>
> Key: HDFS-6828
> URL: https://issues.apache.org/jira/browse/HDFS-6828
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: balancer
> Reporter: Tsz Wo Nicholas Sze
> Assignee: Tsz Wo Nicholas Sze
> Attachments: h6828_20140808.patch, h6828_20140808b.patch,
> h6828_20140808c.patch
>
>
> The Balancer class implements two major features, (1) balancing logic for
> selecting replicas in order to balance the cluster and (2) block replica
> dispatching for moving the block replica around. This JIRA is to separate
> (2) from Balancer so that the code could be reused by other code such as the
> new data migration tool proposed in HDFS-6801.
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