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From "Brahma Reddy Battula (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-4427) NPE on handleNMContainerStatus when NM is registering to RM
Date Mon, 07 Dec 2015 10:53:11 GMT

     [ https://issues.apache.org/jira/browse/YARN-4427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Brahma Reddy Battula updated YARN-4427:
---------------------------------------
    Priority: Critical  (was: Major)

> NPE on handleNMContainerStatus when NM is registering to RM
> -----------------------------------------------------------
>
>                 Key: YARN-4427
>                 URL: https://issues.apache.org/jira/browse/YARN-4427
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Brahma Reddy Battula
>            Assignee: Brahma Reddy Battula
>            Priority: Critical
>
>  *Seen the following in one of our environment when AM got allocated container but failed
to updated in the ZK Where cluster is having network problem for sometime(up and down).* 
> {noformat}
> 2015-12-07 16:39:38,489 | WARN  | IPC Server handler 49 on 26003 | IPC Server handler
49 on 26003, call org.apache.hadoop.yarn.server.api.ResourceTrackerPB.registerNodeManager
from 9.91.8.220:52169 Call#17 Retry#0 | Server.java:2107
> java.lang.NullPointerException
>         at org.apache.hadoop.yarn.server.resourcemanager.ResourceTrackerService.handleNMContainerStatus(ResourceTrackerService.java:286)
>         at org.apache.hadoop.yarn.server.resourcemanager.ResourceTrackerService.registerNodeManager(ResourceTrackerService.java:395)
>         at org.apache.hadoop.yarn.server.api.impl.pb.service.ResourceTrackerPBServiceImpl.registerNodeManager(ResourceTrackerPBServiceImpl.java:54)
>         at org.apache.hadoop.yarn.proto.ResourceTracker$ResourceTrackerService$2.callBlockingMethod(ResourceTracker.java:79)
>         at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)
>         at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:973)
>         at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2088)
>         at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2084)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:422)
>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1673)
>         at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2082)
> {noformat}
> Corresponding code, it might not match with {{branch-2.7/Trunk}} since we had modified
internally.
> {code}
>  284	RMAppAttempt rmAppAttempt = rmApp.getRMAppAttempt(appAttemptId);
>  285	Container masterContainer = rmAppAttempt.getMasterContainer();
>  286	if (masterContainer.getId().equals(containerStatus.getContainerId())
>  287       && containerStatus.getContainerState() == ContainerState.COMPLETE)
{
>  288     ContainerStatus status =
>  289         ContainerStatus.newInstance(containerStatus.getContainerId(),
>  290           containerStatus.getContainerState(), containerStatus.getDiagnostics(),
>  291           containerStatus.getContainerExitStatus());
>  292     // sending master container finished event.
>  293     RMAppAttemptContainerFinishedEvent evt =
>  294         new RMAppAttemptContainerFinishedEvent(appAttemptId, status,
>  295             nodeId);
>  296     rmContext.getDispatcher().getEventHandler().handle(evt);
>  297   }
> {code}



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