Chen Liang created HDFS-13566:
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             Summary: Add configurable additional RPC listener to NameNode
                 Key: HDFS-13566
                 URL: https://issues.apache.org/jira/browse/HDFS-13566
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: ipc
            Reporter: Chen Liang
            Assignee: Chen Liang


This Jira aims to add the capability to NameNode to run additional listener(s). 
Such that NameNode can be accessed from multiple ports. Fundamentally, this 
Jira tries to extend ipc.Server to allow configured with more listeners, 
binding to different ports, but sharing the same call queue and the handlers. 
Useful when different clients are only allowed to access certain different 
ports. Combined with HDFS-13547, this also allows different ports to have 
different SASL security levels. 



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