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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8878) uppercase namenode hostname causes hadoop dfs calls with webhdfs filesystem and fsck to fail when security is on
Date Thu, 11 Oct 2012 13:23:05 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13474134#comment-13474134
] 

Hudson commented on HADOOP-8878:
--------------------------------

Integrated in Hadoop-Mapreduce-trunk #1223 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1223/])
    HADOOP-8878. Uppercase namenode hostname causes hadoop dfs calls with webhdfs filesystem
and fsck to fail when security is on. Contributed by Arpit Gupta. (Revision 1396922)

     Result = FAILURE
suresh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1396922
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/client/KerberosAuthenticator.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/util/KerberosUtil.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-auth/src/test/java/org/apache/hadoop/security/authentication/util/TestKerberosUtil.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt

                
> uppercase namenode hostname causes hadoop dfs calls with webhdfs filesystem and fsck
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
>             Fix For: 1.2.0, 2.0.3-alpha
>
>         Attachments: HADOOP-8878.branch-1.patch, HADOOP-8878.branch-1.patch, HADOOP-8878.branch-1.patch,
HADOOP-8878.patch, HADOOP-8878.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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