Karthik Kambatla created YARN-1821:
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Summary: NM throws NPE on re-register with RM if it has containers
for Unmanaged AMs
Key: YARN-1821
URL: https://issues.apache.org/jira/browse/YARN-1821
Project: Hadoop YARN
Issue Type: Sub-task
Reporter: Karthik Kambatla
Priority: Blocker
On RM restart (or failover), NM re-registers with the RM. If it was running
containers for Unmanaged AMs, it runs into the following NPE:
{noformat}
Caused by:
org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException):
java.lang.NullPointerException
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceTrackerService.registerNodeManager(ResourceTrackerService.java:213)
at
org.apache.hadoop.yarn.server.api.impl.pb.service.ResourceTrackerPBServiceImpl.registerNodeManager(ResourceTrackerPBServiceImpl.java:54)
{noformat}
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