[YARN-7947] Capacity Scheduler intra-queue preemption can NPE for non-schedulable apps

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.9.0, 2.8.3, 3.0.0, 3.1.0
• Fix Version/s: 3.1.0, 2.10.0, 2.9.1, 2.8.4, 3.0.3
• Component/s: capacity scheduler, scheduler preemption
• Hadoop Flags: Reviewed
• Assignee: Eric Payne
• Reporter: Eric Payne
• Created: 19/Feb/18 21:16
• Updated: 14/Oct/19 15:37
• Resolved: 21/Feb/18 10:11

Description

Intra-queue preemption policy can cause NPE for pending users with no schedulable apps.