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https://issues.apache.org/jira/browse/YARN-3661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16135928#comment-16135928
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Giovanni Matteo Fumarola commented on YARN-3661:
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Thanks [~elgoiri].
Few additional feedback about the edited classes:
* Why do we need the changes in {hadoop-common-project/hadoop-common/pom.xml}?
* In {{Router}} we don't need to create {{getFederationFacade}} since we can 
use directly the singleton instance everywhere.
* In {{RouterWebServiceUtil}} I have already created {{invokeRMWebService}} you 
just need to adapt your calls to the new method.

> Basic Federation UI 
> --------------------
>
>                 Key: YARN-3661
>                 URL: https://issues.apache.org/jira/browse/YARN-3661
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Giovanni Matteo Fumarola
>            Assignee: Íñigo Goiri
>         Attachments: YARN-3661-000.patch, YARN-3661-001.patch
>
>
> The UIs provided by each RM, provide a correct "local" view of what is 
> running in a sub-cluster. In the context of federation we need new 
> UIs that can track load, jobs, users across sub-clusters.



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