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From "churro morales (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11195) Potentially improve block locality during major compaction for old regions
Date Fri, 23 May 2014 00:13:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14006638#comment-14006638

churro morales commented on HBASE-11195:

Hi Ted, 

I must have uploaded the wrong file.  Sorry it was done late at night.  Please disregard that
one, I only touch two files in the patch.

I'll upload the correct one.  My fault.

> Potentially improve block locality during major compaction for old regions
> --------------------------------------------------------------------------
>                 Key: HBASE-11195
>                 URL: https://issues.apache.org/jira/browse/HBASE-11195
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.94.19
>            Reporter: churro morales
>            Assignee: churro morales
>         Attachments: HBASE-11195-0.94.patch, HBASE-11195-trunk.patch
> This might be a specific use case.  But we have some regions which are no longer written
to (due to the key).  Those regions have 1 store file and they are very old, they haven't
been written to in a while.  We still use these regions to read from so locality would be
> I propose putting a configuration option: something like
> hbase.hstore.min.locality.to.skip.major.compact [between 0 and 1]
> such that you can decide whether or not to skip major compaction for an old region with
a single store file.
> I'll attach a patch, let me know what you guys think.

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