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https://issues.apache.org/jira/browse/HBASE-8803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13692999#comment-13692999
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Jean-Marc Spaggiari commented on HBASE-8803:
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Also, today region_mover assigns the regions randomly. Should we go
round-robbin instead?
Working on a fix for 0.94. Will most probably do the job for trunk too. More to
come.
> region_mover.rb should move multiple regions at a time
> ------------------------------------------------------
>
> Key: HBASE-8803
> URL: https://issues.apache.org/jira/browse/HBASE-8803
> Project: HBase
> Issue Type: Bug
> Reporter: Jean-Marc Spaggiari
> Assignee: Jean-Marc Spaggiari
> Original Estimate: 48h
> Remaining Estimate: 48h
>
> When there is many regions in a cluster, rolling_restart can take hours
> because region_mover is moving the regions one by one.
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