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From "churro morales (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-11195) Potentially improve block locality during major compaction for old regions
Date Fri, 16 May 2014 16:46:24 GMT
churro morales created HBASE-11195:
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             Summary: 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


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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