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From "Mikhail Antonov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15504) Fix Balancer in 1.3 not moving regions off overloaded regionserver
Date Wed, 13 Apr 2016 22:29:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15240138#comment-15240138
] 

Mikhail Antonov commented on HBASE-15504:
-----------------------------------------

+1, looks good to me.

> Fix Balancer in 1.3 not moving regions off overloaded regionserver
> ------------------------------------------------------------------
>
>                 Key: HBASE-15504
>                 URL: https://issues.apache.org/jira/browse/HBASE-15504
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.3.0
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>             Fix For: 2.0.0, 1.3.0, 1.4.0
>
>         Attachments: HBASE-15504-v3.patch
>
>
> We pushed 1.3 to a couple of clusters. In some cases the regions were assigned VERY un-evenly
and the regions would not move after that.
> We ended up with one rs getting thousands of regions and most servers getting 0. Running
balancer would do nothing. The balancer would say that it couldn't find a solution with less
than the current cost.



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