[HADOOP-9358] "Auth failed" log should include exception string

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.0-beta, 3.0.0-alpha1
• Fix Version/s: 2.1.0-beta
• Component/s: ipc, security
• Target Version/s: 2.1.0-beta
• Hadoop Flags: Reviewed
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 04/Mar/13 22:40
• Updated: 12/May/16 18:25
• Resolved: 27/Mar/13 18:54

Description

Currently, when authentication fails, we see a WARN message like:

2013-02-28 22:49:03,152 WARN  ipc.Server (Server.java:saslReadAndProcess(1056)) - Auth failed for 1.2.3.4:12345:null

This is not useful to understand the underlying cause. The WARN entry should additionally include the exception text, eg:

2013-02-28 22:49:03,152 WARN  ipc.Server (Server.java:saslReadAndProcess(1056)) - Auth failed for 1.2.3.4:12345:null (GSS initiate failed [Caused by GSSException: Failure unspecified at GSS-API level (Mechanism level: Request is a replay (34))])