[jira] [Commented] (HADOOP-8878) uppercase namenode hostname causes hadoop dfs calls with webhdfs filesystem to fail when security is on

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-8878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13469077#comment-13469077 ] 

Hadoop QA commented on HADOOP-8878:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12547655/HADOOP-8878.patch
  against trunk revision .

    {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}.  The javadoc tool did not generate any 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.

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

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/1555//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/1555//console

This message is automatically generated.
                
> uppercase namenode hostname causes hadoop dfs calls with webhdfs filesystem to fail when security is on
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-8878
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8878
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 1.0.3, 1.1.0, 1.2.0, 3.0.0
>            Reporter: Arpit Gupta
>            Assignee: Arpit Gupta
>         Attachments: HADOOP-8878.branch-1.patch, HADOOP-8878.patch
>
>
> This was noticed on a secure cluster where the namenode had an upper case hostname and the following command was issued
> hadoop dfs -ls webhdfs://NN:PORT/PATH
> the above command failed because delegation token retrieval failed.
> Upon looking at the kerberos logs it was determined that we tried to get the ticket for kerberos principal with upper case hostnames and that host did not exit in kerberos. We should convert the hostnames to lower case. Take a look at HADOOP-7988 where the same fix was applied on a different class.
> I have noticed this issue exists on branch-1. Will investigate trunk and branch-2 and update accordingly.

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