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From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15504) Fix Balancer in 1.3 not moving regions off overloaded regionserver
Date Mon, 21 Mar 2016 19:03:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15204908#comment-15204908
] 

Elliott Clark commented on HBASE-15504:
---------------------------------------

HBASE-14604 is the most likely candidate but I haven't 100% figured it out yet.

> 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
>            Reporter: Elliott Clark
>
> 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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