Daryn Sharp created HADOOP-14034:
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             Summary: Allow ipc layer exceptions to selectively close 
connections
                 Key: HADOOP-14034
                 URL: https://issues.apache.org/jira/browse/HADOOP-14034
             Project: Hadoop Common
          Issue Type: Sub-task
          Components: ipc
    Affects Versions: 2.7.0
            Reporter: Daryn Sharp
            Assignee: Daryn Sharp


IPC layer exceptions generated in the readers are translated into fatal errors 
- resulting in connection closure.  Ex. RetriableExceptions from call queue 
pushback.

Always closing the connection degrades performance for all clients since a 
disconnected client will immediately reconnect on retry.  Readers become 
overwhelmed servicing new connections and re-authentications from bad clients 
instead of servicing calls from good clients.  The call queues run dry.

Exceptions originating in the readers should be able to indicate if the 
exception is an error or fatal so connections can remain open.



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