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https://issues.apache.org/jira/browse/HADOOP-10556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13990362#comment-13990362
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Hadoop QA commented on HADOOP-10556:
------------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12643450/HADOOP-10556.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author 
tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new 
or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the 
total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with 
eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new 
Findbugs (version 1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase 
the total number of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in 
hadoop-common-project/hadoop-auth hadoop-common-project/hadoop-common.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: 
https://builds.apache.org/job/PreCommit-HADOOP-Build/3916//testReport/
Console output: 
https://builds.apache.org/job/PreCommit-HADOOP-Build/3916//console

This message is automatically generated.

> Add toLowerCase support to auth_to_local rules for service name
> ---------------------------------------------------------------
>
>                 Key: HADOOP-10556
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10556
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>    Affects Versions: 2.4.0
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>         Attachments: HADOOP-10556.patch
>
>
> When using Vintela to integrate Linux with AD, principals are lowercased. If 
> the accounts in AD have uppercase characters (ie FooBar) the Kerberos 
> principals have also uppercase characters (ie FooBar/<HOST>). Because of 
> this, when a service (Yarn/HDFS) extracts the service name from the Kerberos 
> principal (FooBar) and uses it for obtain groups the user is not found 
> because via Linux the user FooBar is unknown, it has been converted to foobar.



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