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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-6428) Pluggable Compaction policies
Date Thu, 19 Jul 2012 04:29:34 GMT
Lars Hofhansl created HBASE-6428:

             Summary: 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

This would be a major change, allowing compactions to provide multiple targets (not just a

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