[MAPREDUCE-5458] Jobhistory server (and probably others) throws HTTP 500 error if keytab fails

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 2.1.0-beta
• Component/s: jobhistoryserver
• Assignee: Unassigned
• Reporter: Allen Wittenauer
• Created: 14/Aug/13 20:56
• Updated: 01/Sep/18 21:24
• Resolved: 01/Sep/18 21:24

Description

I had a situation where the job history didn't renew its kerberos credentials (still verifying that problem). If a user connects to the web UI at a point when the server can't talk to HDFS, it shows the user a 500 error rather than giving something meaningful.