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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8818) Allow Balancer to run faster
Date Fri, 21 Jul 2017 14:39:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16096327#comment-16096327
] 

Hudson commented on HDFS-8818:
------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #12043 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/12043/])
HDFS-11742. Improve balancer usability after HDFS-8818. Contributed by (kihwal: rev 8e3a992eccff26a7344c3f0e719898fa97706b8c)
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/balancer/Dispatcher.java


> 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: Tsz Wo Nicholas Sze
>             Fix For: 2.8.0, 2.7.4, 3.0.0-alpha1
>
>         Attachments: bal1.png, bal2.png, 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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