Provide dfsadmin functionality to report on namenode's view of network topology
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Key: HADOOP-5258
URL: https://issues.apache.org/jira/browse/HADOOP-5258
Project: Hadoop Core
Issue Type: New Feature
Reporter: Jakob Homan
Assignee: Jakob Homan
As discussed in HADOOP-4954, it would be useful to be able to query the
namenode to its current view on the network topology of racks and datanodes.
This would allow ops to compare what the namenode sees with what they expect it
to see.
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