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From "Dave Latham (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-3160) Compactions: Use more intelligent priorities for PriorityCompactionQueue
Date Wed, 03 Nov 2010 15:59:24 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12927887#action_12927887
] 

Dave Latham commented on HBASE-3160:
------------------------------------

Does that mean https://issues.apache.org/jira/browse/HBASE-2770 is fixed then?

> Compactions: Use more intelligent priorities for PriorityCompactionQueue
> ------------------------------------------------------------------------
>
>                 Key: HBASE-3160
>                 URL: https://issues.apache.org/jira/browse/HBASE-3160
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.89.20100924, 0.90.0
>            Reporter: Nicolas Spiegelberg
>            Assignee: Nicolas Spiegelberg
>             Fix For: 0.90.0
>
>         Attachments: HBASE-3160.patch
>
>
> One of the problems with the current compaction queue is that we have a very low granularity
on the importance of the various compactions in the queue.  If a StoreFile count exceeds 15
files, only then do we bump via enum change.  We should instead look into more intelligent,
granular priority metrics for choosing the next compaction.  

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