Íñigo Goiri created HDFS-14268:
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             Summary: RBF: Fix the location of the DNs in getDatanodeReport()
                 Key: HDFS-14268
                 URL: https://issues.apache.org/jira/browse/HDFS-14268
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Íñigo Goiri
            Assignee: Íñigo Goiri


When getting all the DNs in the federation, the Router queries each of the 
subclusters and aggregates them assigning the subcluster id to the location. 
This query uses a {{HashSet}} which provides a "random" order for the results.



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