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https://issues.apache.org/jira/browse/HADOOP-7988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13191926#comment-13191926
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Jitendra Nath Pandey commented on HADOOP-7988:
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It is expected that principals will be created with lower case in the hostname
in the kdc. The patch makes sure, that lower case hostname is used in the
principal. The patch has been tested on machines having upper case in their
hostnames.
> Upper case in hostname part of the principals doesn't work with kerberos.
> -------------------------------------------------------------------------
>
> Key: HADOOP-7988
> URL: https://issues.apache.org/jira/browse/HADOOP-7988
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 0.24.0, 0.23.1, 1.0.0
> Reporter: Jitendra Nath Pandey
> Assignee: Jitendra Nath Pandey
> Attachments: HADOOP-7988.branch-1.patch
>
>
> Kerberos doesn't like upper case in the hostname part of the principals.
> This issue has been seen in 23 as well as 1.0.
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