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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-11195) Potentially improve block locality during major compaction for old regions
Date Tue, 20 Jan 2015 02:18:35 GMT

     [ https://issues.apache.org/jira/browse/HBASE-11195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell resolved HBASE-11195.
------------------------------------
      Resolution: Fixed
    Hadoop Flags: Reviewed

Pushed to 0.98+. Attached what I committed.

Do you want this in branch-1.0 [~enis]? 

> 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: 1.0.0, 2.0.0, 0.94.26, 0.98.10
>            Reporter: churro morales
>            Assignee: churro morales
>         Attachments: HBASE-11195-0.94.patch, HBASE-11195-0.98.patch, HBASE-11195.patch,
HBASE-11195.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
nice.  
> 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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