Íñigo Goiri created YARN-8483:
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             Summary: Logs in FederationInterceptorREST should give some 
information on the exception
                 Key: YARN-8483
                 URL: https://issues.apache.org/jira/browse/YARN-8483
             Project: Hadoop YARN
          Issue Type: Improvement
    Affects Versions: 2.9.1
            Reporter: Íñigo Goiri
            Assignee: Íñigo Goiri


When there is an error collecting the data from the subclusters, there is not 
details:
[FederationInterceptorREST #3] 
org.apache.hadoop.yarn.server.router.webapp.FederationInterceptorREST: 
Subcluster 1 failed to return nodesInfo.
 [FederationInterceptorREST #2] 
org.apache.hadoop.yarn.server.router.webapp.FederationInterceptorREST: 
Subcluster 0 failed to return nodesInfo.

We should add the message for the exception.



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