[YARN-1986] In Fifo Scheduler, node heartbeat in between creating app and attempt causes NPE

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 2.4.1
• Hadoop Flags: Reviewed
• Assignee: Hong Zhiguo
• Reporter: Jon Bringhurst
• Created: 25/Apr/14 19:44
• Updated: 30/Jun/14 08:18
• Resolved: 14/May/14 06:45

Description

After upgrade from 2.2.0 to 2.4.0, NPE on first job start.

After RM was restarted, the job runs without a problem.

19:11:13,441 FATAL ResourceManager:600 - Error in handling event type NODE_UPDATE to the scheduler
java.lang.NullPointerException
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler.assignContainers(FifoScheduler.java:462)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler.nodeUpdate(FifoScheduler.java:714)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler.handle(FifoScheduler.java:743)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler.handle(FifoScheduler.java:104)
	at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:591)
	at java.lang.Thread.run(Thread.java:744)
19:11:13,443  INFO ResourceManager:604 - Exiting, bbye..

Issue Links

• is duplicated by: YARN-2057 NPE in RM handling node update while app submission in progress