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Posted to dev@hbase.apache.org by "churro morales (JIRA)" <ji...@apache.org> on 2015/01/21 01:18:34 UTC

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

churro morales created HBASE-12890:
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             Summary: 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


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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