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Posted to issues@hbase.apache.org by "Dave Latham (JIRA)" <ji...@apache.org> on 2015/04/09 01:17:13 UTC

[jira] [Updated] (HBASE-12890) Provide a way to throttle the number of regions moved by the balancer

     [ https://issues.apache.org/jira/browse/HBASE-12890?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dave Latham updated HBASE-12890:
--------------------------------
    Affects Version/s:     (was: 1.1.0)
                           (was: 2.0.0)

> Provide a way to throttle the number of regions moved by the balancer
> ---------------------------------------------------------------------
>
>                 Key: HBASE-12890
>                 URL: https://issues.apache.org/jira/browse/HBASE-12890
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.98.10
>            Reporter: churro morales
>            Assignee: churro morales
>             Fix For: 2.0.0, 1.1.0, 0.98.13
>
>         Attachments: HBASE-12890.patch
>
>
> We have a very large cluster and we frequently add remove quite a few regionservers from our cluster.  Whenever we do this the balancer moves thousands of regions at once.  Instead we provide a configuration parameter: hbase.balancer.max.regions.  This limits the number of regions that are balanced per iteration.  



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