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https://issues.apache.org/jira/browse/HBASE-3448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13006714#comment-13006714
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Nicolas Spiegelberg commented on HBASE-3448:
--------------------------------------------
Going to put this in the 0.90 branch as well. Since this is only an HBase
utility and was confirmed for the 0.90 branch earlier, I'm assuming that this
is fine.
> 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: 0.92.0
>
> 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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