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Posted to common-issues@hadoop.apache.org by "Nicolas Liochon (JIRA)" <ji...@apache.org> on 2013/11/13 12:36:17 UTC

[jira] [Created] (HADOOP-10095) Performance improvement in CodecPool

Nicolas Liochon created HADOOP-10095:
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             Summary: Performance improvement in CodecPool
                 Key: HADOOP-10095
                 URL: https://issues.apache.org/jira/browse/HADOOP-10095
             Project: Hadoop Common
          Issue Type: Improvement
    Affects Versions: 2.2.0, 3.0.0
            Reporter: Nicolas Liochon
            Assignee: Nicolas Liochon
            Priority: Minor
             Fix For: 3.0.0, 2.2.1


CodecPool shows up when profiling HBase with a mixed workload (it says we spend 1% of the time there).

It could be a profiler side effect, but on the other hand we can save some 'Map#contains'.



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