[YARN-1919] Potential NPE in EmbeddedElectorService#stop

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.3.0, 2.4.0, 2.5.0
• Fix Version/s: 2.6.0
• Component/s: resourcemanager
• Hadoop Flags: Reviewed
• Assignee: Tsuyoshi Ozawa
• Reporter: Devaraj Kavali
• Created: 09/Apr/14 11:21
• Updated: 01/May/15 23:14
• Resolved: 20/Aug/14 22:15

Description

2014-04-09 16:14:16,392 WARN org.apache.hadoop.service.AbstractService: When stopping the service org.apache.hadoop.yarn.server.resourcemanager.EmbeddedElectorService : java.lang.NullPointerException
java.lang.NullPointerException
	at org.apache.hadoop.yarn.server.resourcemanager.EmbeddedElectorService.serviceStop(EmbeddedElectorService.java:108)
	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)
	at org.apache.hadoop.service.AbstractService.init(AbstractService.java:171)
	at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107)
	at org.apache.hadoop.yarn.server.resourcemanager.AdminService.serviceInit(AdminService.java:122)
	at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
	at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107)
	at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceInit(ResourceManager.java:232)
	at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
	at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1038)

Issue Links

• is duplicated by: YARN-2309 NPE during RM-Restart test scenario