[MAPREDUCE-4927] Historyserver 500 error due to NPE when accessing specific counters page for failed job

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.3-alpha, 0.23.6
• Fix Version/s: 2.1.0-beta, 0.23.8
• Component/s: jobhistoryserver
• Target Version/s: 2.1.0-beta, 0.23.8
• Hadoop Flags: Reviewed
• Assignee: Ashwin Shankar
• Reporter: Jason Darrell Lowe
• Created: 08/Jan/13 20:21
• Updated: 27/Aug/13 22:22
• Resolved: 17/May/13 20:27

Description

Went to the historyserver page for a job that failed and examined the counters page. When I clicked on a specific counter, the historyserver returned a 500 error. The historyserver logs showed it encountered an NPE error, full traceback to follow.