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https://issues.apache.org/jira/browse/YARN-1801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14104921#comment-14104921
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Beckham007 commented on YARN-1801:
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[~jlowe] we use hadoop 2.2.0. We got both problems in  YARN-1575 and YARN-1801.
When the hdfs has some problems , the NPE in YARN-1801 happens. Otherwise, the 
problems is including in YARN-1575.
We will build a version that includes the fix from YARN-1575. 
Even if the assoc is null, should we close the threadpool?

> NPE in public localizer
> -----------------------
>
>                 Key: YARN-1801
>                 URL: https://issues.apache.org/jira/browse/YARN-1801
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>    Affects Versions: 2.2.0
>            Reporter: Jason Lowe
>            Assignee: Hong Zhiguo
>            Priority: Critical
>         Attachments: YARN-1801.patch
>
>
> While investigating YARN-1800 found this in the NM logs that caused the 
> public localizer to shutdown:
> {noformat}
> 2014-01-23 01:26:38,655 INFO  localizer.ResourceLocalizationService 
> (ResourceLocalizationService.java:addResource(651)) - Downloading public 
> rsrc:{ 
> hdfs://colo-2:8020/user/fertrist/oozie-oozi/0000601-140114233013619-oozie-oozi-W/aggregator--map-reduce/map-reduce-launcher.jar,
>  1390440382009, FILE, null }
> 2014-01-23 01:26:38,656 FATAL localizer.ResourceLocalizationService 
> (ResourceLocalizationService.java:run(726)) - Error: Shutting down
> java.lang.NullPointerException
>       at 
> org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService$PublicLocalizer.run(ResourceLocalizationService.java:712)
> 2014-01-23 01:26:38,656 INFO  localizer.ResourceLocalizationService 
> (ResourceLocalizationService.java:run(728)) - Public cache exiting
> {noformat}



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