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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-14034) Allow ipc layer exceptions to selectively close connections
Date Fri, 27 Jan 2017 22:21:24 GMT
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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