Vinod Kumar Vavilapalli resolved YARN-255.
    Resolution: Duplicate

The only tokens needed by the AM from the RM via the launch are AMRMTokens. 
That is fixed via YARN-937. Closing this as dup, please reopen if you disagree.

> Support secure AM launch for unmanaged AM's
> -------------------------------------------
>                 Key: YARN-255
>                 URL: https://issues.apache.org/jira/browse/YARN-255
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: applications/unmanaged-AM-launcher
>    Affects Versions: 3.0.0
>            Reporter: Bikas Saha
> Currently unmanaged AM launch does not get security tokens because tokens are 
> passed by the RM to the AM via the NM during AM container launch. For 
> unmanaged AM's the RM can send tokens in the SubmitApplicationResponse to the 
> secure client. The client can then pass these onto the AM in a manner similar 
> to the NM. 

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