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https://issues.apache.org/jira/browse/YARN-10775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zhengchenyu reassigned YARN-10775:
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    Assignee: zhengchenyu

> Federation: Yarn running app web can't be unable to connect, because 
> AppMaster can't redirect to the right address. 
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-10775
>                 URL: https://issues.apache.org/jira/browse/YARN-10775
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: zhengchenyu
>            Assignee: zhengchenyu
>            Priority: Major
>
> I setup a yarn federation cluster, I can't connect the running app web, but 
> the completed app's web works.
> By some debug info, I found the reason. Because AmIpFilter.PROXY_HOSTS is set 
> by configuration (do it in 
> AmFilterInitializer.getProxyHostsAndPortsForAmFilter). In client 
> configuration, there are no configuation about 'rm web port', so the url 
> can't not be redirect. 
> I think client should not know rm's web port, especially in yarn federation 
> mode.
> Note:
> Here is my specially configuration for client. I use ha for select router 
> randomly.
> || config || value ||
> | yarn.resourcemanager.ha.enabled   | true |
> | yarn.resourcemanager.ha.rm-ids | r1 |
> |yarn.resourcemanager.address.r1 | router_host:8050 |
> |yarn.resourcemanager.scheduler.address.r1 | localhost:8049 |



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