[jira] Created: (HDFS-870) Topology is permanently cached

[Allen Wittenauer (JIRA)]

Topology is permanently cached
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                 Key: HDFS-870
                 URL: https://issues.apache.org/jira/browse/HDFS-870
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Allen Wittenauer


Replacing the topology script requires a namenode bounce because the NN caches 
the information permanently.  It should really either expire it periodically or 
expire on -refreshNodes.

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