Ming Chen created HBASE-12330:
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             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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