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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (YARN-1821) NM throws NPE on re-register with RM if it has containers for Unmanaged AMs
Date Tue, 11 Mar 2014 16:23:49 GMT

     [ https://issues.apache.org/jira/browse/YARN-1821?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karthik Kambatla reassigned YARN-1821:
--------------------------------------

    Assignee: Karthik Kambatla

> 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
>          Components: resourcemanager
>            Reporter: Karthik Kambatla
>            Assignee: 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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