[RANGER-2437] Update grant/revoke error message to provide more information about the principal type

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: Ranger
• Assignee: Ramesh Mani
• Reporter: Fredy Wijaya
• Created: 16/May/19 18:55
• Updated: 06/Jun/19 14:14
• Resolved: 30/May/19 17:46

Description

In related to this: https://issues.apache.org/jira/browse/IMPALA-8551

when granting/revoking to an invalid user/group, Ranger only throws a generic Exception which a generic error message, such as "HTTP: 400: foo is Not Found". This could happen when:

• grantor is an invalid user
• the target grant user is invalid
• the target grant group is invalid.

It would be nice if Ranger could either throw a specialized exception or update the error message to provide more information.

Issue Links

• causes: IMPALA-8551 GRANT gives confusing error message