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From "Chris Trezzo (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8890) Allow admin to specify which blockpools the balancer should run on
Date Wed, 02 Sep 2015 23:13:47 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8890?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Trezzo updated HDFS-8890:
-------------------------------
    Release Note: 
Adds a new blockpools flag to the balancer. This allows admins to specify which blockpools
the balancer will run on.
Usage:
-blockpools <comma-separated list of blockpool ids>
The balancer will only run on blockpools included in this list.

> 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
>             Fix For: 2.8.0
>
>         Attachments: HDFS-8890-trunk-v1.patch, HDFS-8890-trunk-v2.patch, HDFS-8890-trunk-v3.patch,
HDFS-8890-trunk-v4.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-6299761-10.55.116.188-1415904647555,BP-47348528-10.51.120.139-1415904199257



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