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https://issues.apache.org/jira/browse/KUDU-1942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15928269#comment-15928269
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Todd Lipcon commented on KUDU-1942:
-----------------------------------
Hadoop faced the same problem, their JIRA has some interesting discussion
> Kerberos fails to log in on hostnames with capital characters
> -------------------------------------------------------------
>
> Key: KUDU-1942
> URL: https://issues.apache.org/jira/browse/KUDU-1942
> Project: Kudu
> Issue Type: Bug
> Components: security
> Affects Versions: 1.3.0
> Reporter: Todd Lipcon
> Priority: Critical
>
> I tried setting up Kerberos on my laptop which has the hostname
> 'todd-Thinkpad-T540p' (including capital letters). It seems like we are
> inconsistent about our treatment of caps -- if I make the keytab with the
> principal kudu/todd-thinkpad-t540p it fails complaining it can't find
> kudu/todd-Thinkpad-T540p, and if I make the keytab as the latter, it fails
> complaining it can't find the former.
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