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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-3866) Script to add regions gradually to a new regionserver.
Date Wed, 05 Sep 2012 00:17:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13448238#comment-13448238

Lars Hofhansl commented on HBASE-3866:

Should we rebase/commit Ted's patch?
> Script to add regions gradually to a new regionserver.
> ------------------------------------------------------
>                 Key: HBASE-3866
>                 URL: https://issues.apache.org/jira/browse/HBASE-3866
>             Project: HBase
>          Issue Type: Improvement
>          Components: scripts
>    Affects Versions: 0.90.2
>            Reporter: Aravind Gottipati
>            Priority: Minor
>         Attachments: 3866-max-regions-per-iteration.patch, slow_balancer.rb, slow_balancer.rb
> When a new region server is brought online, the current balancer kicks off a whole bunch
of region moves and causes a lot of regions to be un-available right away.  A slower balancer
that gradually balances the cluster is probably a good script to have.  I have an initial
version that mooches off the region_mover script to do this.

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