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https://issues.apache.org/jira/browse/HBASE-15429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15335575#comment-15335575
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Mikhail Antonov commented on HBASE-15429:
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kicked out of 1.3 as it's close to release. 1.4 would be good.
> Add a split policy for busy regions
> -----------------------------------
>
> Key: HBASE-15429
> URL: https://issues.apache.org/jira/browse/HBASE-15429
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Ashu Pachauri
> Assignee: Ashu Pachauri
> Fix For: 2.0.0, 1.4.0
>
> Attachments: HBASE-15429-V1.patch, HBASE-15429-V2.patch,
> HBASE-15429.patch
>
>
> Currently, all region split policies are based on size. However, in certain
> cases, it is a wise choice to make a split decision based on number of
> requests to the region and split busy regions.
> A crude metric is that if a region blocks writes often and throws
> RegionTooBusyExceoption, it's probably a good idea to split it.
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