Bo Wang commented on YARN-2704:

Thank you for your quick reply. You are correct. The problem is that I failed 
to add resource manager as a hadoop proxy user in core-site.xml.

>  Localization and log-aggregation will fail if hdfs delegation token expired 
> after token-max-life-time
> ------------------------------------------------------------------------------------------------------
>                 Key: YARN-2704
>                 URL: https://issues.apache.org/jira/browse/YARN-2704
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Jian He
>            Assignee: Jian He
>            Priority: Critical
>             Fix For: 2.6.0
>         Attachments: YARN-2704.1.patch, YARN-2704.2.patch, YARN-2704.2.patch, 
> YARN-2704.3.patch, YARN-2704.4.patch
> In secure mode, YARN requires the hdfs-delegation token to do localization 
> and log aggregation on behalf of the user. But the hdfs delegation token will 
> eventually expire after max-token-life-time.  So,  localization and log 
> aggregation will fail after the token expires.

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