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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2010/07/13 21:38:52 UTC

[jira] Resolved: (HBASE-2802) Stop daughter regions both being assigned same server

     [ https://issues.apache.org/jira/browse/HBASE-2802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack resolved HBASE-2802.
--------------------------

     Hadoop Flags: [Reviewed]
    Fix Version/s:     (was: 0.90.0)
       Resolution: Fixed

Committed to 0.20 branch.

> Stop daughter regions both being assigned same server
> -----------------------------------------------------
>
>                 Key: HBASE-2802
>                 URL: https://issues.apache.org/jira/browse/HBASE-2802
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: stack
>             Fix For: 0.20.6
>
>         Attachments: moz.txt
>
>
> On split, usually the two daughter regions end up on assignment list at same time.  Dependent on cluster state and what balancer says, when a server checks in, we'll assign at least two regions in the one go so daughters then end up on same server.  This patch makes it so we don't assign contiguous regions in the one assignment.

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