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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-57) [hbase] Master should allocate regions to regionservers based upon data locality and rack awareness
Date Fri, 03 May 2013 20:24:16 GMT

     [ https://issues.apache.org/jira/browse/HBASE-57?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack resolved HBASE-57.
------------------------

    Resolution: Duplicate

Fixed by the stochastic balancer in trunk/0.95
                
> [hbase] Master should allocate regions to regionservers based upon data locality and
rack awareness
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-57
>                 URL: https://issues.apache.org/jira/browse/HBASE-57
>             Project: HBase
>          Issue Type: Improvement
>          Components: master
>    Affects Versions: 0.2.0
>            Reporter: stack
>            Assignee: Li Chongxin
>              Labels: gsoc
>
> Currently, regions are assigned regionservers based off a basic loading attribute.  A
factor to include in the assignment calcuation is the location of the region in hdfs; i.e.
servers hosting region replicas.  If the cluster is such that regionservers are being run
on the same nodes as those running hdfs, then ideally the regionserver for a particular region
should be running on the same server as hosts a region replica.

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