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From "Jonathan Gray (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2802) Stop daughter regions both being assigned same server
Date Fri, 02 Jul 2010 22:53:54 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2802?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12884844#action_12884844

Jonathan Gray commented on HBASE-2802:

So then we do not want to go through with other split changes that have regions re-open on
server hosting parent?

> 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, 0.21.0
>         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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