[YARN-6598] History server getApplicationReport NPE when fetching report for pre-2.8 job

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.8.0
• Fix Version/s: 2.9.0, 3.0.0-alpha4, 2.8.2
• Component/s: timelineserver
• Target Version/s: 2.8.1
• Assignee: Jason Lowe
• Reporter: Jason Lowe
• Created: 12/May/17 20:07
• Updated: 24/Apr/18 20:49
• Resolved: 15/May/17 17:19

Description

ApplicationHistoryManagerOnTimelineStore#convertToApplicationReport can NPE for a job that was run prior to the cluster upgrading to 2.8. It blindly assumes preemption metrics are present when CPU metrics are present, and when they are not it triggers the NPE.

Issue Links

• is broken by: YARN-4218 Metric for resource*time that was preempted