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https://issues.apache.org/jira/browse/HBASE-9956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lars Hofhansl updated HBASE-9956:
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Attachment: 9935-0.94.txt
Here's the patch from HBASE-9935.
Will make a trunk patch as well.
> 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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