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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-6428) Pluggable Compaction policies
Date Tue, 14 May 2013 00:21:18 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lars Hofhansl resolved HBASE-6428.
----------------------------------

    Resolution: Implemented

Turns out this is already done in trunk. Closing.
                
> Pluggable Compaction policies
> -----------------------------
>
>                 Key: HBASE-6428
>                 URL: https://issues.apache.org/jira/browse/HBASE-6428
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Lars Hofhansl
>
> For some usecases is useful to allow more control over how KVs get compacted.
> For example one could envision storing old versions of a KV separate HFiles, which then
rarely have to be touched/cached by queries querying for new data.
> In addition these date ranged HFile can be easily used for backups while maintaining
historical data.
> This would be a major change, allowing compactions to provide multiple targets (not just
a filter).

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