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From "Chuck Rolke (JIRA)" <j...@apache.org>
Subject [jira] [Created] (QPID-4378) C++ Broker deletes dynamic bridges too aggressively
Date Thu, 18 Oct 2012 20:06:03 GMT
Chuck Rolke created QPID-4378:
---------------------------------

             Summary: C++ Broker deletes dynamic bridges too aggressively
                 Key: QPID-4378
                 URL: https://issues.apache.org/jira/browse/QPID-4378
             Project: Qpid
          Issue Type: Bug
          Components: C++ Broker
    Affects Versions: 0.18
         Environment: C++ Broker
            Reporter: Chuck Rolke
            Assignee: Chuck Rolke


If a dynamic bridge's session has been detached while attempting to propagate a binding event,
the broker will delete the bridge.  Normally, a detached bridge session will be automatically
recovered during the maintenance periodic if possible. Needless to say, auto-deleting the
bridge upon a session error prevents this normal recovery path from occurring.

This event can occur in a production system during broker startup/federation and also during
source broker recovery since there is a potential race condition between creation of the source
exchange and the creation of the dynamic bridge on the destination broker.

Log Message:
Sep 30 19:41:40 localhost qpidd[10497]: 2012-09-30 19:41:40 [Broker] error Cannot propagate
binding for dynamic bridge as session has been detached, deleting dynamic bridge

Steps to reproduce:
# src broker: localhost:5801
# dst broker: localhost:5803
#
# Create exchange in dst broker
#
qpid-config -b localhost:5803 add exchange topic fed.topic

#
# create dynamic bridge
#
qpid-route dynamic add localhost:5803 localhost:5801 fed.topic

#
# create dst queue as bind target
#
qpid-config -b localhost:5803 add queue fed.topic.queue

#
# create binding on dest exchange
#
qpid-config -b localhost:5803   bind fed.topic fed.topic.queue
qpid-config -b localhost:5803 unbind fed.topic fed.topic.queue

# The unbind should not delete the bridge.

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