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Posted to dev@hbase.apache.org by "Lars Hofhansl (JIRA)" <ji...@apache.org> on 2013/11/12 02:02:22 UTC

[jira] [Created] (HBASE-9956) Remove keyLength cache from KeyValue

Lars Hofhansl created HBASE-9956:
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             Summary: Remove keyLength cache from KeyValue
                 Key: HBASE-9956
                 URL: https://issues.apache.org/jira/browse/HBASE-9956
             Project: HBase
          Issue Type: Bug
            Reporter: Lars Hofhansl
            Priority: Minor
         Attachments: 9935-0.94.txt

See discussion in HBASE-9935. Currently KeyValue caches the keyLength in order to avoid decoding the key length in getKeyLength() repeatedly.
Benchmarking outside of a profiler revealed no improvement from that cache (and a sampling profiler also does not indicate getKeyLength() as a performance issue).
Along with this there's also a slight fix in ScanQueryMatcher.



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