[YARN-4539] CommonNodeLabelsManager throw NullPointerException when the fairScheduler init failed

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.7.1
• Assignee: Wally Tang
• Reporter: Wally Tang
• Created: 04/Jan/16 15:45
• Updated: 06/Jan/16 02:59
• Resolved: 06/Jan/16 02:59

Description

When the scheduler initialization failed and RM stop compositeService cause the CommonNodeLabelsManager throw NullPointerException.

2016-01-04 22:19:52,190 INFO org.apache.hadoop.service.AbstractService: Service org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler failed in state INITED; cause: java.io.IOException: Failed to initialize FairScheduler
java.io.IOException: Failed to initialize FairScheduler
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.initScheduler(FairScheduler.java:1377)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.serviceInit(FairScheduler.java:1394)
	at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
	at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107)
....
2016-01-04 22:19:52,193 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Stopping ResourceManager metrics system...
2016-01-04 22:19:52,194 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: ResourceManager metrics system stopped.
2016-01-04 22:19:52,194 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: ResourceManager metrics system shutdown complete.
2016-01-04 22:19:52,194 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: AsyncDispatcher is draining to stop, igonring any new events.
2016-01-04 22:19:52,194 INFO org.apache.hadoop.service.AbstractService: Service org.apache.hadoop.yarn.nodelabels.CommonNodeLabelsManager failed in state STOPPED; cause: java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
	at org.apache.hadoop.yarn.nodelabels.CommonNodeLabelsManager.stopDispatcher(CommonNodeLabelsManager.java:251)
	at org.apache.hadoop.yarn.nodelabels.CommonNodeLabelsManager.serviceStop(CommonNodeLabelsManager.java:257)
	at org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
	at org.apache.hadoop.service.ServiceOperations.stop(ServiceOperations.java:52)
	at org.apache.hadoop.service.ServiceOperations.stopQuietly(ServiceOperations.java:80)

Issue Links

• is duplicated by: YARN-3425 NPE from RMNodeLabelsManager.serviceStop when NodeLabelsManager.serviceInit failed