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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8818) Allow Balancer to run faster
Date Tue, 02 May 2017 21:45:06 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15993840#comment-15993840
] 

Kihwal Lee commented on HDFS-8818:
----------------------------------

I will open a new one and post the patch there.

> Allow Balancer to run faster
> ----------------------------
>
>                 Key: HDFS-8818
>                 URL: https://issues.apache.org/jira/browse/HDFS-8818
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: balancer & mover
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Kihwal Lee
>             Fix For: 2.8.0, 2.7.4, 3.0.0-alpha1
>
>         Attachments: bal_revert.branch-2.8.patch, bal_revert.branch-2.patch, bal_revert.trunk.patch,
h8818_20150723.patch, h8818_20150727.patch, HDFS-8818-branch-2.7.00.patch
>
>
> The original design of Balancer is intentionally to make it run slowly so that the balancing
activities won't affect the normal cluster activities and the running jobs.
> There are new use case that cluster admin may choose to balance the cluster when the
cluster load is low, or in a maintain window.  So that we should have an option to allow Balancer
to run faster.



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