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From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15429) Add a split policy for busy regions
Date Fri, 17 Jun 2016 00:39:05 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15335093#comment-15335093
] 

Elliott Clark commented on HBASE-15429:
---------------------------------------

Pushed to master. I couldn't get it to apply to branch-1. If you want this in branch-1 can
you attach a patch that applies

> 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, 1.3.0
>
>         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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