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https://issues.apache.org/jira/browse/YARN-103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13535045#comment-13535045
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Tom White commented on YARN-103:
--------------------------------

> +1, this is really helpful if we can get the APIs right.

I agree this would be very useful. Regarding getting the APIs right, making 
AMRMClient a class rather than an interface would permit us to add methods 
later on, which is not possible for interfaces. This is a helper class, so 
there shouldn't be a need for alternative implementations. 
                
> Add a yarn AM - RM client module
> --------------------------------
>
>                 Key: YARN-103
>                 URL: https://issues.apache.org/jira/browse/YARN-103
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Bikas Saha
>            Assignee: Bikas Saha
>         Attachments: YARN-103.1.patch, YARN-103.2.patch, YARN-103.3.patch, 
> YARN-103.4.patch, YARN-103.4.wrapper.patch, YARN-103.5.patch, 
> YARN-103.6.patch, YARN-103.7.patch
>
>
> Add a basic client wrapper library to the AM RM protocol in order to prevent 
> proliferation of code being duplicated everywhere. Provide helper functions 
> to perform reverse mapping of container requests to RM allocation resource 
> request table format.

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