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https://issues.apache.org/jira/browse/HADOOP-8152?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron T. Myers updated HADOOP-8152:
-----------------------------------

    Attachment: HADOOP-8152.patch

Thanks a lot for the input, Todd. Here's an updated patch which adds the 
methods you mentioned HBase makes use of.

bq. Many parts of UGI are pretty broken when multiple keytabs are in play. They 
should probably be fixed before marking them public.

Note that this patch is marking the interfaces evolving, not stable, so if we 
have a good reason to change them between releases (e.g. fixing multi-keytab 
support) then we certainly can.
                
> Expand public APIs for security library classes
> -----------------------------------------------
>
>                 Key: HADOOP-8152
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8152
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>    Affects Versions: 2.0.0
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>         Attachments: HADOOP-8152.patch, HADOOP-8152.patch
>
>
> Currently projects like Hive and HBase use UserGroupInformation and 
> SecurityUtil methods. Both of these classes are marked 
> LimitedPrivate(HDFS,MR) but should probably be marked more generally public.

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