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From "Chris Trezzo (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8890) Allow admin to specify which blockpools the balancer should run on
Date Wed, 02 Sep 2015 18:43:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14727830#comment-14727830

Chris Trezzo commented on HDFS-8890:

Also note that the two checkstyle warnings remain consistent with the current code. If we
want to fix these, we can file a follow on JIRA to fix the Balancer#Parameters class as a

> Allow admin to specify which blockpools the balancer should run on
> ------------------------------------------------------------------
>                 Key: HDFS-8890
>                 URL: https://issues.apache.org/jira/browse/HDFS-8890
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: balancer & mover
>            Reporter: Chris Trezzo
>            Assignee: Chris Trezzo
>         Attachments: HDFS-8890-trunk-v1.patch, HDFS-8890-trunk-v2.patch, HDFS-8890-trunk-v3.patch,
> Currently the balancer runs on all blockpools. Allow an admin to run the balancer on
a set of blockpools. This will enable the balancer to skip blockpools that should not be balanced.
For example, a tmp blockpool that has a large amount of churn.
> An example of the command line interface would be an additional flag that specifies the
blockpools by id:
> -blockpools BP-6299761-,BP-47348528-

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