[jira] [Closed] (HBASE-7708) deprecated call in region_mover.rb causing high cpu utilization

["Andrew Kyle Purtell (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-7708?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Kyle Purtell closed HBASE-7708.
--------------------------------------

> deprecated call in region_mover.rb causing high cpu utilization
> ---------------------------------------------------------------
>
>                 Key: HBASE-7708
>                 URL: https://issues.apache.org/jira/browse/HBASE-7708
>             Project: HBase
>          Issue Type: Improvement
>          Components: scripts
>            Reporter: Eric Edgeworth
>            Priority: Minor
>             Fix For: 0.92.3
>
>
> We noticed high CPU utilization while using region_mover.rb to unload regions.  Consulted with Stack, who suggested changing a line in region_mover.rb from (the deprecated):
> {code}
>   table = getTable(admin.getConfiguration(), r.getTableDesc().getName())
> {code}
> to:
> {code}
>   table = getTable(admin.getConfiguration(), r.getTableName())
> {code}
> In our tests this dropped CPU utilization from ~200% over the course of the unload to ~0.5% after startup, and allowed unload of ~200 regions to complete in ~7 minutes instead of the original ~18 minutes, so the change seems to fix the CPU utilization issue with no untoward side effects we could find.



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