[jira] [Created] (HADOOP-12858) Reduce UGI getGroups overhead

[Daryn Sharp (JIRA)]

Daryn Sharp created HADOOP-12858:
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             Summary: Reduce UGI getGroups overhead
                 Key: HADOOP-12858
                 URL: https://issues.apache.org/jira/browse/HADOOP-12858
             Project: Hadoop Common
          Issue Type: Improvement
          Components: performance
    Affects Versions: 2.0.0-alpha
            Reporter: Daryn Sharp
            Assignee: Daryn Sharp


Group lookup generates excessive garbage with multiple conversions between 
collections and arrays.



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