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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9942) Add an HTrace span when refreshing the groups for a username
Date Fri, 11 Mar 2016 20:24:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15191460#comment-15191460
] 

Colin Patrick McCabe commented on HDFS-9942:
--------------------------------------------

Thanks, [~iwasakims].

> 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
>         Attachments: HDFS-9942.001.patch
>
>
> 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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