[YARN-1663] NPE in FifoScheduler.assignContainers

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 2.3.0
• Component/s: scheduler

Environment

(starting AM client that is marked as wanting containers back on restart)

• Assignee: Unassigned
• Reporter: Steve Loughran
• Created: 28/Jan/14 16:59
• Updated: 01/May/15 21:37
• Resolved: 01/May/15 21:37

Description

NPE see in scheduler thread running in a MiniYARNCluster with the fifo scheduler

	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler.assignContainers(FifoScheduler.java:461)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler.nodeUpdate(FifoScheduler.java:718)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler.handle(FifoScheduler.java:747)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler.handle(FifoScheduler.java:105)
	at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:543)

Issue Links

• relates to: YARN-1572 Low chance to hit NPE issue in AppSchedulingInfo#allocateNodeLocal