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Posted to issues@hbase.apache.org by "churro morales (JIRA)" <ji...@apache.org> on 2015/01/21 01:21:34 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 ]

churro morales updated HBASE-12890:
-----------------------------------
    Attachment: HBASE-12890.patch

I believe the patch works for all the versions affected

> 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: 2.0.0, 0.98.10, 1.1.0
>            Reporter: churro morales
>            Assignee: churro morales
>         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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