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https://issues.apache.org/jira/browse/HDFS-7546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14251786#comment-14251786
 ] 

Hadoop QA commented on HDFS-7546:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12688010/HDFS-7546.patch
  against trunk revision 1050d42.

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

    {color:red}-1 tests included{color}.  The patch doesn't appear to include 
any new or modified tests.
                        Please justify why no new tests are needed for this 
patch.
                        Also please list what manual steps were performed to 
verify this patch.

    {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-hdfs-project/hadoop-hdfs:

                  
org.apache.hadoop.hdfs.server.blockmanagement.TestDatanodeManager
                  
org.apache.hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureToleration

Test results: 
https://builds.apache.org/job/PreCommit-HDFS-Build/9072//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/9072//console

This message is automatically generated.

> Document, and set an accepting default for 
> dfs.namenode.kerberos.principal.pattern
> ----------------------------------------------------------------------------------
>
>                 Key: HDFS-7546
>                 URL: https://issues.apache.org/jira/browse/HDFS-7546
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: security
>    Affects Versions: 2.1.1-beta
>            Reporter: Harsh J
>            Assignee: Harsh J
>            Priority: Minor
>              Labels: supportability
>         Attachments: HDFS-7546.patch
>
>
> This config is used in the SaslRpcClient, and the no-default breaks 
> cross-realm trust principals being used at clients.
> Current location: 
> https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/SaslRpcClient.java#L309
> The config should be documented and the default should be set to * to 
> preserve the prior-to-introduction behaviour.



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