Rohith Sharma K S created YARN-8964:
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             Summary: UI2 should use clusters/{cluster name} for all ATSv2 REST 
APIs
                 Key: YARN-8964
                 URL: https://issues.apache.org/jira/browse/YARN-8964
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Rohith Sharma K S


UI2 makes a REST call to TimelineReader without cluster name. It is advised to 
make a REST call with clusters/{cluster name} so that remote TimelineReader 
daemon could serve for different clusters.
*Example*:
*Current*: /ws/v2/timeline/flows/
*Change*: /ws/v2/timeline/*clusters/\{cluster name\}*/flows/


*yarn.resourcemanager.cluster-id *is configured with cluster. So, this config 
could be used to get cluster-id

cc:/ [~sunilg] [~akhilpb]



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