[AMBARI-25333] Regenerate keytab generates empty keytab file if no file present in cache

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.3
• Fix Version/s: 2.8.0
• Component/s: ambari-server
• Labels: pull-request-available
• Assignee: amarnath reddy pappu
• Reporter: amarnath reddy pappu
• Created: 08/Jul/19 17:57
• Updated: 14/Nov/22 15:03
• Resolved: 30/Aug/19 16:23

Description

Steps to reproduce:

If Database table has a reference for a keytab file at /var/lib/ambari-server/data/cache/ and if file is not present then Ambari would copy empty keytab files to all the hosts.

1. Install and Kerberize the cluster.
2. remove keytab file/s at /var/lib/ambari-server/data/cache/
3. Now re-generate missing keytab files operation.
4. You can find empty keytab file in cluster hosts.

Ambari should check keytab file exist or not while deciding what to re-generate.

 

This BUG can cause issue during the Upgrade as it runs re-generate missing keytab operation.

Issue Links

• links to: GitHub PR#3486
• links to: GitHub Pull Request #3052
• links to: GitHub Pull Request #3109