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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-3457) NPE when NodeManager.serviceInit fails and stopRecoveryStore called
Date Wed, 13 May 2015 20:56:01 GMT

     [ https://issues.apache.org/jira/browse/YARN-3457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason Lowe updated YARN-3457:
-----------------------------
    Fix Version/s:     (was: 2.8.0)
                   2.7.1

I pulled this into branch-2.7 as well.

> NPE when NodeManager.serviceInit fails and stopRecoveryStore called
> -------------------------------------------------------------------
>
>                 Key: YARN-3457
>                 URL: https://issues.apache.org/jira/browse/YARN-3457
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>            Reporter: Bibin A Chundatt
>            Assignee: Bibin A Chundatt
>            Priority: Minor
>             Fix For: 2.7.1
>
>         Attachments: YARN-3457.001.patch
>
>
> When NodeManager service init fails during stopRecoveryStore null pointer exception is
thrown
> {code}
>  @Override
>   protected void serviceInit(Configuration conf) throws Exception {
>    ..
>   try {
>       exec.init();
>     } catch (IOException e) {
>       throw new YarnRuntimeException("Failed to initialize container executor", e);
>     }    
> this.context = createNMContext(containerTokenSecretManager,
>         nmTokenSecretManager, nmStore);
>     
> {code}
> context is null when service init fails
> {code}
>   private void stopRecoveryStore() throws IOException {
>     nmStore.stop();
>     if (context.getDecommissioned() && nmStore.canRecover()) {
>    ..
>     }
>   }
> {code}
> Null pointer exception thrown
> {quote}
> 015-04-07 17:31:45,807 WARN org.apache.hadoop.service.AbstractService: When stopping
the service NodeManager : java.lang.NullPointerException
> java.lang.NullPointerException
> 	at org.apache.hadoop.yarn.server.nodemanager.NodeManager.stopRecoveryStore(NodeManager.java:168)
> 	at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceStop(NodeManager.java:280)
> 	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.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:484)
> 	at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:534)
> {quote}



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