[ZEPPELIN-3312] Add an option to convert username to lower case

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.7.4
• Fix Version/s: 0.8.0
• Component/s: zeppelin-server
• Assignee: Vipin Rathor
• Reporter: Vipin Rathor
• Created: 09/Mar/18 19:58
• Updated: 16/Aug/18 16:27
• Resolved: 23/Apr/18 03:42

Description

Zeppelin, when configured with external authentication system, can have username in various cases (either UPPER case, lower case or even CaMel case). On the other side, the Hadoop services expect username to be in lower case.

Problem arises when end users are logging in with upper/camel case username and Hadoop services (such as Hive) can't authorize them.

Proposing a new option in Zeppelin - "zeppelin.username.force.lowercase" to handle such scenarios.

Current Behavior:
Access is denied to CaMel case user while running a Hive paragraph

Expected Behavior:
User should be allowed to run query with proposed configuration set to true.

By default, keeping zeppelin.username.force.lowercase=false to retain the current behavior.

Issue Links

• is related to: ZEPPELIN-2886 Make usernames case insensitive
• links to: GitHub Pull Request #2923