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Posted to yarn-issues@hadoop.apache.org by "lujie (JIRA)" <ji...@apache.org> on 2019/01/23 07:21:00 UTC

[jira] [Updated] (YARN-9223) NPE happens in NM while loading recovery fails

     [ https://issues.apache.org/jira/browse/YARN-9223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

lujie updated YARN-9223:
------------------------
    Attachment: hadoop-hd-nodemanager-slave1.log

> NPE happens in NM while loading recovery fails
> ----------------------------------------------
>
>                 Key: YARN-9223
>                 URL: https://issues.apache.org/jira/browse/YARN-9223
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: lujie
>            Assignee: lujie
>            Priority: Minor
>         Attachments: YARN-9223_1.patch, hadoop-hd-nodemanager-slave1.log
>
>
> In org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceInit:
>  
> {code:java}
> try {
>   initAndStartRecoveryStore(conf);
> } catch (IOException e) {
>    String recoveryDirName = conf.get(YarnConfiguration.NM_RECOVERY_DIR);
>   throw new
>    YarnRuntimeException("Unable to initialize recovery directory at "
>    + recoveryDirName, e);
> }
> ............
> this.context = createNMContext(containerTokenSecretManager,
> nmTokenSecretManager, nmStore, isDistSchedulingEnabled, conf);
> {code}
> while Recovery fails, the context  is null, and YarnRuntimeException will cause serviceStop to run(due to Shutdown Hook):
> {code:java}
> // Cleanup ResourcePluginManager
> ResourcePluginManager rpm = context.getResourcePluginManager();
> {code}
> hence NPE happens:
> {code:java}
> java.lang.NullPointerException
> at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceStop(NodeManager.java:530)
> at org.apache.hadoop.service.AbstractService.stop(AbstractService.java:220)
> at org.apache.hadoop.service.ServiceOperations.stop(ServiceOperations.java:54)
> at org.apache.hadoop.service.ServiceOperations.stopQuietly(ServiceOperations.java:102)
> at org.apache.hadoop.service.AbstractService.init(AbstractService.java:172)
> at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:984)
> at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:1064)
> {code}
>  
>  



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