Hudson commented on YARN-3967:

FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #256 (See 
YARN-3967. Fetch the application report from the AHS if the RM does not (xgong: 
rev fbd6063269221ec25834684477f434e19f0b66af)
* hadoop-yarn-project/CHANGES.txt

> Fetch the application report from the AHS if the RM does not know about it
> --------------------------------------------------------------------------
>                 Key: YARN-3967
>                 URL: https://issues.apache.org/jira/browse/YARN-3967
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.7.1
>            Reporter: Mit Desai
>            Assignee: Mit Desai
>             Fix For: 2.7.2
>         Attachments: YARN-3967.1.patch, YARN-3967.2.patch, YARN-3967.3.patch
> If the application history service has been enabled and RM has forgotten 
> anout an application, try and fetch the app report form the AHS.
> On larger clusters, the RM can forget about the applications in about 30 
> minutes. The proxy url generated during the job submission will try to fetch 
> the app report from the RM and will fail to get anything from there. If the 
> app is not found in the RM, we will need to get the application report from 
> the Application History Server  (if it is enabled) to see if we can get any 
> information on that application before throwing an exception.

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