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From "Ming Chen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-12330) compaction bandwidth limit
Date Thu, 23 Oct 2014 17:51:33 GMT
Ming Chen created HBASE-12330:
---------------------------------

             Summary: compaction bandwidth limit
                 Key: HBASE-12330
                 URL: https://issues.apache.org/jira/browse/HBASE-12330
             Project: HBase
          Issue Type: New Feature
          Components: Admin, Compaction
    Affects Versions: 0.89-fb
         Environment: software platform
            Reporter: Ming Chen
            Priority: Minor
             Fix For: 0.89-fb


Compaction runs to its full speed. This change provides two knobs to limit the compaction
bandwidth: 
1 compactBwLimit: the desired max bandwidth per compaction. If the compaction thread runs
too fast, it will be put to sleep for a while;
2. numOfFilesDisableCompactLimit: Limiting the compaction speed will increase the # of files
per store which increases the read latency. This parameter can disable the compaction limit
when the number of files in a store exceeds the value.



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