Xiao Chen created HADOOP-14025:
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             Summary: Enhance AccessControlList to reject empty ugi#getGroups
                 Key: HADOOP-14025
                 URL: https://issues.apache.org/jira/browse/HADOOP-14025
             Project: Hadoop Common
          Issue Type: Improvement
          Components: security
    Affects Versions: 2.6.0
            Reporter: Xiao Chen
            Assignee: Xiao Chen


It would be good to reconsider empty groups when checking user access.



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