Varun Vasudev resolved YARN-1755.
    Resolution: Won't Fix

Closing as won't fix - standby RM's redirect clients to the active RM removing 
the need for this.

> Add support for web services to the WebApp proxy
> ------------------------------------------------
>                 Key: YARN-1755
>                 URL: https://issues.apache.org/jira/browse/YARN-1755
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Varun Vasudev
> The RM currently has an inbuilt web proxy that is used to serve requests. The 
> web proxy is necessary for security reasons which are described on the Apache 
> Hadoop website 
> (http://hadoop.apache.org/docs/stable/hadoop-yarn/hadoop-yarn-site/WebApplicationProxy.html).
>   The web application proxy is a part of YARN and can be configured to run as 
> a standalone proxy. Currently, the RM itself supports web services. Adding 
> support for all the web service calls in the web app proxy allows it to 
> support failover and retry for all web services. The changes involved are the 
> following –
> a.    Add support for web service calls to the RM web application proxy and 
> have it make the equivalent RPC calls.
> b.    Add support for failover and retry to the web application proxy. We can 
> refactor a lot of the existing client code from the Yarn client.

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