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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7519) Support level compaction
Date Tue, 08 Jan 2013 21:08:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13547265#comment-13547265
] 

Jimmy Xiang commented on HBASE-7519:
------------------------------------

Here is some details about the leveldb level compaction:
http://leveldb.googlecode.com/svn/trunk/doc/impl.html

Cassandra supports level compaction too:


http://www.datastax.com/dev/blog/leveled-compaction-in-apache-cassandra

http://www.datastax.com/dev/blog/when-to-use-leveled-compaction


                
> Support level compaction
> ------------------------
>
>                 Key: HBASE-7519
>                 URL: https://issues.apache.org/jira/browse/HBASE-7519
>             Project: HBase
>          Issue Type: New Feature
>          Components: Compaction
>            Reporter: Jimmy Xiang
>
> The level compaction algorithm may help HBase for some use cases, for example, read heavy
loads (especially, just one version is used), relative small key space updated frequently.

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