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From "Keith Turner (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-452) Generalize locality groups
Date Thu, 08 Mar 2012 03:35:00 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13224973#comment-13224973
] 

Keith Turner commented on ACCUMULO-452:
---------------------------------------

I will put together an initial design document and post it for review.  


                
> Generalize locality groups
> --------------------------
>
>                 Key: ACCUMULO-452
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-452
>             Project: Accumulo
>          Issue Type: New Feature
>            Reporter: Keith Turner
>             Fix For: 1.5.0
>
>
> Locality groups are a neat feature, but there is no reason to limit partitioning to column
families.  Data could be partitioned based on any criteria.  For example if a user is interested
in querying recent data and ageing off old data partitioning locality groups based in timestamp
would be useful.  This could be accomplished by letting users specify a partitioner plugin
that is used at compaction and scan time.  Scans would need an ability to pass options to
the partitioner.

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