[YARN-1374] Resource Manager fails to start due to ConcurrentModificationException

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.3.0
• Fix Version/s: 2.3.0
• Component/s: resourcemanager
• Hadoop Flags: Reviewed
• Assignee: Karthik Kambatla
• Reporter: Devaraj Kavali
• Created: 30/Oct/13 11:49
• Updated: 03/Nov/14 18:05
• Resolved: 05/Nov/13 18:27

Description

Resource Manager is failing to start with the below ConcurrentModificationException.

2013-10-30 20:22:42,371 INFO org.apache.hadoop.util.HostsFileReader: Refreshing hosts (include/exclude) list
2013-10-30 20:22:42,376 INFO org.apache.hadoop.service.AbstractService: Service ResourceManager failed in state INITED; cause: java.util.ConcurrentModificationException
java.util.ConcurrentModificationException
	at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
	at java.util.AbstractList$Itr.next(AbstractList.java:343)
	at java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1010)
	at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107)
	at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceInit(ResourceManager.java:187)
	at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
	at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:944)
2013-10-30 20:22:42,378 INFO org.apache.hadoop.yarn.server.resourcemanager.RMHAProtocolService: Transitioning to standby
2013-10-30 20:22:42,378 INFO org.apache.hadoop.yarn.server.resourcemanager.RMHAProtocolService: Transitioned to standby
2013-10-30 20:22:42,378 FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error starting ResourceManager
java.util.ConcurrentModificationException
	at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
	at java.util.AbstractList$Itr.next(AbstractList.java:343)
	at java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1010)
	at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107)
	at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceInit(ResourceManager.java:187)
	at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
	at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:944)
2013-10-30 20:22:42,379 INFO org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down ResourceManager at HOST-10-18-40-24/10.18.40.24
************************************************************/