[HADOOP-13580] If user is unauthorized, log "unauthorized" instead of "Invalid signed text:"

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha2
• Component/s: security
• Labels: supportability
• Hadoop Flags: Reviewed
• Assignee: Wei-Chiu Chuang
• Reporter: Wei-Chiu Chuang
• Created: 06/Sep/16 16:28
• Updated: 16/Sep/16 22:20
• Resolved: 16/Sep/16 22:00

Description

If a user is unauthorized to access web interface, the signed text is empty, and the web interface prints

org.apache.hadoop.security.authentication.util.SignerException: Invalid signed text:

This error message is obscure. It should be a more meaningful message like "Unauthorized access."