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https://issues.apache.org/jira/browse/YARN-6583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated YARN-6583:
---------------------------------
    Labels: easyfix pull-request-available  (was: easyfix)

> Hadoop-sls failed to start because of premature state of RM
> -----------------------------------------------------------
>
>                 Key: YARN-6583
>                 URL: https://issues.apache.org/jira/browse/YARN-6583
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: scheduler-load-simulator
>    Affects Versions: 2.6.0
>            Reporter: JayceAu
>            Priority: Major
>              Labels: easyfix, pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> During startup of SLS, after startRM() in SLSRunner.start(), 
> BaseContainerTokenSecretManager not yet generate its onw internal key or it's 
> not yet exposed to the other thread, then NM registration will fail because 
> of the following exception. Finally, the whole SLS process will crash.
> {noformat}
> Exception in thread "main" java.lang.NullPointerException
>         at 
> org.apache.hadoop.yarn.server.security.BaseContainerTokenSecretManager.getCurrentKey(BaseContainerTokenSecretManager.java:81)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceTrackerService.registerNodeManager(ResourceTrackerService.java:300)
>         at 
> org.apache.hadoop.yarn.sls.nodemanager.NMSimulator.init(NMSimulator.java:105)
>         at org.apache.hadoop.yarn.sls.SLSRunner.startNM(SLSRunner.java:202)
>         at org.apache.hadoop.yarn.sls.SLSRunner.start(SLSRunner.java:143)
>         at org.apache.hadoop.yarn.sls.SLSRunner.main(SLSRunner.java:528)
> 17/05/11 10:21:06 INFO resourcemanager.ResourceManager: Recovery started
> 17/05/11 10:21:06 INFO recovery.ZKRMStateStore: Watcher event type: None with 
> state:SyncConnected for path:null for Service 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore in state 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore: STARTED
> {noformat}



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