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https://issues.apache.org/jira/browse/YARN-3793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Varun Saxena updated YARN-3793:
-------------------------------
    Priority: Major  (was: Critical)

Changing the priority back to original. Was bumped up to Critical because of 
issues fixed in YARN-3850

> Several NPEs when deleting local files on NM recovery
> -----------------------------------------------------
>
>                 Key: YARN-3793
>                 URL: https://issues.apache.org/jira/browse/YARN-3793
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.6.0
>            Reporter: Karthik Kambatla
>            Assignee: Varun Saxena
>         Attachments: YARN-3793.01.patch
>
>
> When NM work-preserving restart is enabled, we see several NPEs on recovery. 
> These seem to correspond to sub-directories that need to be deleted. I wonder 
> if null pointers here mean incorrect tracking of these resources and a 
> potential leak. This JIRA is to investigate and fix anything required.
> Logs show:
> {noformat}
> 2015-05-18 07:06:10,225 INFO 
> org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor: Deleting 
> absolute path : null
> 2015-05-18 07:06:10,224 ERROR 
> org.apache.hadoop.yarn.server.nodemanager.DeletionService: Exception during 
> execution of task in DeletionService
> java.lang.NullPointerException
>         at 
> org.apache.hadoop.fs.FileContext.fixRelativePart(FileContext.java:274)
>         at org.apache.hadoop.fs.FileContext.delete(FileContext.java:755)
>         at 
> org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor.deleteAsUser(DefaultContainerExecutor.java:458)
>         at 
> org.apache.hadoop.yarn.server.nodemanager.DeletionService$FileDeletionTask.run(DeletionService.java:293)
> {noformat}



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