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Posted to issues@hbase.apache.org by "Jieshan Bean (JIRA)" <ji...@apache.org> on 2013/04/23 10:23:19 UTC

[jira] [Commented] (HBASE-6428) Pluggable Compaction policies

    [ https://issues.apache.org/jira/browse/HBASE-6428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13638881#comment-13638881 ] 

Jieshan Bean commented on HBASE-6428:
-------------------------------------

[~lhofhansl] Any updates on this?
                
> 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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