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https://issues.apache.org/jira/browse/YARN-2798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14194222#comment-14194222
 ] 

Hadoop QA commented on YARN-2798:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12678856/YARN-2798.2.patch
  against trunk revision 27715ec.

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

    {color:green}+1 tests included{color}.  The patch appears to include 2 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 2.0.3) warnings.

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

    {color:red}-1 core tests{color}.  The patch failed these unit tests in 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common:

                  org.apache.hadoop.yarn.client.TestResourceTrackerOnHA
                  
org.apache.hadoop.yarn.client.TestApplicationClientProtocolOnHA

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

Test results: 
https://builds.apache.org/job/PreCommit-YARN-Build/5694//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/5694//console

This message is automatically generated.

> YarnClient doesn't need to translate Kerberos name of timeline DT renewer
> -------------------------------------------------------------------------
>
>                 Key: YARN-2798
>                 URL: https://issues.apache.org/jira/browse/YARN-2798
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: timelineserver
>            Reporter: Arpit Gupta
>            Assignee: Zhijie Shen
>            Priority: Blocker
>         Attachments: YARN-2798.1.patch, YARN-2798.2.patch
>
>
> Now YarnClient will automatically get a timeline DT when submitting an app in 
> a secure mode. It will try to parse the yarn-site.xml/core-site.xml to get 
> the RM daemon operating system user. However, the RM principal and 
> auth_to_local may not be properly presented to the client, and the client 
> cannot translate the principal to the daemon user properly. On the other 
> hand, AbstractDelegationTokenIdentifier will do this translation when create 
> the token. However, since the client has already translated the full 
> principal into a short user name (which may not be correct), the server can 
> no longer apply the translation any more, where RM principal and 
> auth_to_local are always correct.



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