Nishan Shetty created YARN-2309:
-----------------------------------
Summary: NPE during RM-Restart test scenario
Key: YARN-2309
URL: https://issues.apache.org/jira/browse/YARN-2309
Project: Hadoop YARN
Issue Type: Bug
Components: resourcemanager
Affects Versions: 2.4.0
Reporter: Nishan Shetty
Priority: Minor
During RMRestart test scenarios, we met with below exception.
A point to note here is, Zookeeper also was not stable during this testing, we
could see many Zookeeper exception before getting this NPE
{code}
2014-07-10 10:49:46,817 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:125)
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:1039)
{code}
Zookeeper Exception
{code}
2014-07-10 10:49:46,816 INFO org.apache.hadoop.service.AbstractService: Service
org.apache.hadoop.yarn.server.resourcemanager.EmbeddedElectorService failed in
state INITED; cause:
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode =
ConnectionLoss
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode =
ConnectionLoss
at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
at
org.apache.hadoop.ha.ActiveStandbyElector$WatcherWithClientRef.waitForZKConnectionEvent(ActiveStandbyElector.java:1046)
at
org.apache.hadoop.ha.ActiveStandbyElector$WatcherWithClientRef.access$400(ActiveStandbyElector.java:1017)
at
org.apache.hadoop.ha.ActiveStandbyElector.getNewZooKeeper(ActiveStandbyElector.java:632)
at
org.apache.hadoop.ha.ActiveStandbyElector.createConnection(ActiveStandbyElector.java:766)
{code}
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