[jira] [Created] (QPID-6192) Broker model closes exchanges/queues before connections

["Keith Wall (JIRA)" <ji...@apache.org>]

Keith Wall created QPID-6192:
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             Summary: Broker model closes exchanges/queues before connections
                 Key: QPID-6192
                 URL: https://issues.apache.org/jira/browse/QPID-6192
             Project: Qpid
          Issue Type: Bug
          Components: Java Broker
            Reporter: Keith Wall
            Assignee: Keith Wall


The Broker Model closes virtualhost children exchanges/queues before connections.   This allows for the possibility that work done on the connection can fail in surprising ways, for instance, a basic.publish can fail as the exchange object can no longer be found.

An instance of this problem is described next.

bq. In our test case, we have a publishing thread, publishing as fast as it can.  The broker is shutdown gracefully.  Sometimes we see a channel.close AMQException "Unknown exchange name" in response to a basic.publish.  Adding logging shows that the Broker is closing and deregistering the exchange before the connection is closed, meaning that the client has the opportunity to get another basic.publish over the wire, to which the broker will respond with the channel.close.  This closes the client's session, meaning after failover, the user is left with a connection with a closed session.



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