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https://issues.apache.org/jira/browse/HBASE-3448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nicolas Spiegelberg reopened HBASE-3448:
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> RegionSplitter : Utility class for manual region splitting
> ----------------------------------------------------------
>
>                 Key: HBASE-3448
>                 URL: https://issues.apache.org/jira/browse/HBASE-3448
>             Project: HBase
>          Issue Type: New Feature
>          Components: client, scripts, util
>            Reporter: Nicolas Spiegelberg
>            Assignee: Nicolas Spiegelberg
>            Priority: Minor
>             Fix For: 0.90.2, 0.92.0
>
>         Attachments: HBASE-3448.patch
>
>
> For certain use cases, there are a number of advantages to manually splitting 
> regions instead of having the HBase split code determine this for you 
> automatically.  There are currently some API additions to HBaseAdmin and 
> HTable that allow you to manually split on a small scale.  This JIRA is about 
> importing a RegionSplitter utility program to help pre-split and perform 
> rolling splits on a live table when needed.  Will also add documentation to 
> answer common questions about why you would pre-split.

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