[YARN-4667] RM Admin CLI for refreshNodesResources throws NPE when nothing is configured

• Type: Sub-task
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: client
• Hadoop Flags: Reviewed
• Assignee: Naganarasimha G R
• Reporter: Naganarasimha G R
• Created: 03/Feb/16 05:32
• Updated: 30/Aug/16 01:06
• Resolved: 08/Feb/16 09:38

Description

$ ./yarn rmadmin -refreshNodesResources
16/02/03 10:54:27 INFO client.RMProxy: Connecting to ResourceManager at /0.0.0.0:8033
refreshNodesResources: java.lang.NullPointerException
at org.apache.hadoop.yarn.server.resourcemanager.AdminService.refreshNodesResources(AdminService.java:655)
at org.apache.hadoop.yarn.server.api.impl.pb.service.ResourceManagerAdministrationProtocolPBServiceImpl.refreshNodesResources(ResourceManagerAdministrationProtocolPBServiceImpl.java:246)
at org.apache.hadoop.yarn.proto.ResourceManagerAdministrationProtocol$ResourceManagerAdministrationProtocolService$2.callBlockingMethod(ResourceManagerAdministrationProtocol.java:287)