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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15429) Add a split policy for busy regions
Date Fri, 17 Jun 2016 03:25:05 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15335314#comment-15335314
] 

Hudson commented on HBASE-15429:
--------------------------------

FAILURE: Integrated in HBase-Trunk_matrix #1061 (See [https://builds.apache.org/job/HBase-Trunk_matrix/1061/])
HBASE-15429 Add split policy for busy regions (eclark: rev 3abd52bdc6db926d930fd94cfce5bd7ba6fd005f)
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.java
* hbase-common/src/main/resources/hbase-default.xml
* hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionSplitPolicy.java


> 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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