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From "Todd Lipcon (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8251) SecurityUtil.fetchServiceTicket broken after HADOOP-6941
Date Fri, 06 Apr 2012 03:51:18 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13248012#comment-13248012
] 

Todd Lipcon commented on HADOOP-8251:
-------------------------------------

The bug was simple -- the string used for the name of the Krb5Util class was mistakenly just
the package name instead of the class name.

It looks like the IBM implementation has the same bug, but googling around, I don't think
there even _is_ a Krb5Util class in IBM's library, at least not with the functions we need.
So I am skeptical that security support works when running on the IBM JRE.
                
> SecurityUtil.fetchServiceTicket broken after HADOOP-6941
> --------------------------------------------------------
>
>                 Key: HADOOP-8251
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8251
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 1.1.0, 2.0.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Blocker
>         Attachments: hadoop-8251.txt
>
>
> HADOOP-6941 replaced direct references to some classes with reflective access so as to
support other JDKs. Unfortunately there was a mistake in the name of the Krb5Util class, which
broke fetchServiceTicket. This manifests itself as the inability to run checkpoints or other
krb5-SSL HTTP-based transfers:
> java.lang.ClassNotFoundException: sun.security.jgss.krb5

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