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https://issues.apache.org/jira/browse/HBASE-3866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13448871#comment-13448871
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Lars Hofhansl commented on HBASE-3866:
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In my comment above I was referring to Ted's patch to HMaster.
I agree the scripts tend to rot (because we do not have a good test framework
for them), but they are useful to be kept here.
So... What about Ted's attached 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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