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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-8803) region_mover.rb should move multiple regions at a time
Date Thu, 27 Feb 2014 18:51:30 GMT

     [ https://issues.apache.org/jira/browse/HBASE-8803?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-8803:
-------------------------

    Release Note: Multithread the region mover so can run more than one region move at a time.
 Specify how many threads on the command line.  Feature will make rolling restart complete
the sooner (if with a little more disruption as more regions are in flight at a time).

> 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: 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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