[HADOOP-8932] JNI-based user-group mapping modules can be too chatty on lookup failures

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.3-alpha, 0.23.5, 3.0.0-alpha1
• Fix Version/s: 2.0.3-alpha, 0.23.5
• Component/s: security
• Hadoop Flags: Reviewed
• Assignee: Kihwal Lee
• Reporter: Kihwal Lee
• Created: 16/Oct/12 14:49
• Updated: 12/May/16 18:21
• Resolved: 16/Oct/12 16:58

Description

On a user/group lookup failure, JniBasedUnixGroupsMapping and JniBasedUnixGroupsNetgroupMapping are logging the
full stack trace at WARN level. Since the caller of these methods is already logging errors, this is not needed. In branch-1, just one line is logged, so we don't need this change there.

Issue Links

• duplicates: HADOOP-9039 Lower the logging level of the initialization messages coming from users-group mapping modules.