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From "Daisuke Kobayashi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13052) Explain each region split policy
Date Tue, 17 Feb 2015 01:35:11 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14323539#comment-14323539
] 

Daisuke Kobayashi commented on HBASE-13052:
-------------------------------------------

Thanks [~misty]! Just a quick confirmation for ConstantSizeRegionSplitPolicy.

bq. the default split policy in HBase 0.94 and earlier. Split regions based only upon the
size of the store file.

This was the default until 0.92, right?

> Explain each region split policy
> --------------------------------
>
>                 Key: HBASE-13052
>                 URL: https://issues.apache.org/jira/browse/HBASE-13052
>             Project: HBase
>          Issue Type: Bug
>          Components: documentation
>            Reporter: Misty Stanley-Jones
>            Assignee: Misty Stanley-Jones
>         Attachments: HBASE-13052.patch
>
>
> {quote}
> there are five region split policies today so that let's add a section which explains:
> 1. How each policies work. We can start from current java doc:
> http://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/regionserver/KeyPrefixRegionSplitPolicy.html
> http://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/regionserver/DelimitedKeyPrefixRegionSplitPolicy.html
> http://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/regionserver/DisabledRegionSplitPolicy.html
> http://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/regionserver/ConstantSizeRegionSplitPolicy.html
> http://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/regionserver/IncreasingToUpperBoundRegionSplitPolicy.html
> 2. How users can choose a good policy per their scenario basis
> 3. Pros and cons over each policies
> {quote}
> from [~daisuke.kobayashi]



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