[jira] [Created] (HDFS-9942) Add an HTrace span when refreshing the groups for a username

[Colin Patrick McCabe (JIRA)]

Colin Patrick McCabe created HDFS-9942:
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             Summary: Add an HTrace span when refreshing the groups for a 
username
                 Key: HDFS-9942
                 URL: https://issues.apache.org/jira/browse/HDFS-9942
             Project: Hadoop HDFS
          Issue Type: Improvement
    Affects Versions: 2.0.0-alpha
            Reporter: Colin Patrick McCabe
            Assignee: Colin Patrick McCabe


We should add an HTrace span when refreshing the groups for a username.  This 
can be an expensive operation in some cases, and it's good to know if it 
delayed a request.



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