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https://issues.apache.org/jira/browse/HBASE-8803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13970308#comment-13970308
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Jean-Marc Spaggiari commented on HBASE-8803:
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The new file is because you asked for the thread pool ;) Hehe ;)
I tried this on 2 "real" clusters. 8RS and 3RS. They are not as real as yours,
but I already tested that a lot. Keep us posted on your testing...
> 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
> Components: Usability
> Affects Versions: 0.94.16, 0.98.1, 0.96.1.1
> Reporter: Jean-Marc Spaggiari
> Assignee: Jean-Marc Spaggiari
> Fix For: 0.96.2, 0.98.1, 0.99.0
>
> Attachments: 8803-0.94-rebased.txt, 8803v5.txt,
> HBASE-8803-v0-trunk.patch, HBASE-8803-v1-0.94.patch,
> HBASE-8803-v1-trunk.patch, HBASE-8803-v10-trunk.patch,
> HBASE-8803-v2-0.94.patch, HBASE-8803-v2-0.94.patch, HBASE-8803-v3-0.94.patch,
> HBASE-8803-v4-0.94.patch, HBASE-8803-v4-trunk.patch,
> HBASE-8803-v5-0.94.patch, HBASE-8803-v6-0.94.patch,
> HBASE-8803-v6-trunk.patch, HBASE-8803-v7-trunk.patch,
> HBASE-8803-v9-trunk.patch
>
> 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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