[KUDU-1942] Kerberos fails to log in on hostnames with capital characters

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.3.0
• Fix Version/s: 1.3.2, 1.5.0, 1.4.1
• Component/s: security
• Target Version/s: 1.5.0
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 16/Mar/17 15:26
• Updated: 22/Aug/17 15:51
• Resolved: 22/Aug/17 15:51

Description

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.

Issue Links

• relates to: HADOOP-7988 Upper case in hostname part of the principals doesn't work with kerberos.