[YARN-7508] NPE in FiCaSchedulerApp when debug log enabled in async-scheduling mode

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.9.0, 3.0.0-alpha4
• Fix Version/s: 3.1.0, 2.10.0, 2.9.1, 3.0.1
• Component/s: capacityscheduler
• Assignee: Tao Yang
• Reporter: Tao Yang
• Created: 16/Nov/17 08:09
• Updated: 10/Jan/18 05:36
• Resolved: 09/Jan/18 14:37

Description

YARN-6678 have fixed the IllegalStateException problem but the debug log it added may cause NPE when trying to print containerId of non-existed reserved container on this node. Replace schedulerContainer.getSchedulerNode().getReservedContainer().getContainerId() with schedulerContainer.getSchedulerNode().getReservedContainer() can fix this problem.