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https://issues.apache.org/jira/browse/YARN-1946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14525242#comment-14525242
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Steve Loughran commented on YARN-1946:
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This has got more complex with the HA proxy stuff: there's >1 (host,port) pair
and the caller needs to handle failover.
its still something that could be made public for anyone wanting to do their
own AmIPFilter; they'd just need to add failover logic themselves
> need Public interface for WebAppUtils.getProxyHostAndPort
> ---------------------------------------------------------
>
> Key: YARN-1946
> URL: https://issues.apache.org/jira/browse/YARN-1946
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: api, webapp
> Affects Versions: 2.4.0
> Reporter: Thomas Graves
> Priority: Critical
>
> ApplicationMasters are supposed to go through the ResourceManager web app
> proxy if they have web UI's so they are properly secured. There is currently
> no public interface for Application Masters to conveniently get the proxy
> host and port. There is a function in WebAppUtils, but that class is
> private.
> We should provide this as a utility since any properly written AM will need
> to do this.
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