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From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7763) Compactions not sorting based on size anymore.
Date Thu, 14 Feb 2013 00:14:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13578057#comment-13578057
] 

Elliott Clark commented on HBASE-7763:
--------------------------------------

Yeah it should be.

Sort by Bulk load time first (This isn't there in trunk)
then sort by seqid
then sort by size
then filename

so only files that dont have a bulk load time (or have exactly the same bulkload time), and
have the same seq id will be affected by this.  That should only be files that contain only
data from bulk load but were created by compactions.
                
> Compactions not sorting based on size anymore.
> ----------------------------------------------
>
>                 Key: HBASE-7763
>                 URL: https://issues.apache.org/jira/browse/HBASE-7763
>             Project: HBase
>          Issue Type: Bug
>          Components: Compaction
>    Affects Versions: 0.96.0, 0.94.4
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>            Priority: Critical
>             Fix For: 0.96.0
>
>         Attachments: HBASE-7763-094-0.patch, HBASE-7763-trunk-1.patch, HBASE-7763-trunk-2.patch,
HBASE-7763-trunk-3.patch, HBASE-7763-trunk-TESTING.patch, HBASE-7763-trunk-TESTING.patch,
HBASE-7763-trunk-TESTING.patch
>
>
> Currently compaction selection is not sorting based on size.  This causes selection to
choose larger files to re-write than are needed when bulk loads are involved.

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