Shilun Fan created YARN-11580:
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             Summary: YARN Router Web supports displaying information for 
Non-Federation.
                 Key: YARN-11580
                 URL: https://issues.apache.org/jira/browse/YARN-11580
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: federation, router
    Affects Versions: 3.4.0
            Reporter: Shilun Fan
            Assignee: Shilun Fan


Typically, YARN Router serves multiple YARN sub-clusters in what we refer to as 
YARN Federation. In this scenario, there are two or more YARN sub-clusters, and 
Router, based on queue configuration weights, forwards client requests to a 
specific sub-cluster.

However, YARN Router also offers the capability to directly forward client 
requests to a particular local cluster. This functionality has already been 
implemented, and you can refer to components such as 
DefaultRequestInterceptorREST, DefaultClientRequestInterceptor, and 
DefaultRMAdminRequestInterceptor.

In this JIRA ticket, we aim to enhance the functionality of YARN Router Web to 
display information about a specific local cluster.



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