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https://issues.apache.org/jira/browse/HBASE-24025?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Stack resolved HBASE-24025.
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Fix Version/s: 3.0.0-alpha-1
Hadoop Flags: Reviewed
Resolution: Fixed
Merged to master. Thanks for patch [~arshad.mohammad]
> Improve performance of move_servers_rsgroup and move_tables_rsgroup by using
> async region move API
> --------------------------------------------------------------------------------------------------
>
> Key: HBASE-24025
> URL: https://issues.apache.org/jira/browse/HBASE-24025
> Project: HBase
> Issue Type: Improvement
> Components: rsgroup
> Reporter: Mohammad Arshad
> Assignee: Mohammad Arshad
> Priority: Major
> Fix For: 3.0.0-alpha-1
>
>
> Currently move_servers_rsgroup and move_tables_rsgroup commands and APIs are
> taking lot of time.
> In my test environment, to move a server with 100 regions it takes around 137
> seconds.
> Similarly it takes around same time to move a table with 100 regions to other
> group.
> The time taken in rsgroup meta update is negligible. Almost all the time is
> taken in region moment. This is happening because region is moved serially
> using getAssignmentManager().move(region) API
> API getAssignmentManager().moveAsync(regionplan) can be used to move the
> regions in parallel to improve the performance of region group move servers
> and tables commands and APIs
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