Pulp

Trying to sync a repo fails and the following exception is logged:

pulp.server.webservices.middleware.exception:ERROR: (30990-64096) Connection instance has no attribute 'set_exception_notify_handler'
pulp.server.webservices.middleware.exception:ERROR: (30990-64096) Traceback (most recent call last):
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/django/core/handlers/base.py", line 132, in get_response
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     response = wrapped_callback(request, *callback_args, **callback_kwargs)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/django/views/generic/base.py", line 71, in view
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     return self.dispatch(request, *args, **kwargs)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/django/views/generic/base.py", line 89, in dispatch
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     return handler(request, *args, **kwargs)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/pulp/server/webservices/views/decorators.py", line 241, in _auth_decorator
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     return _verify_auth(self, operation, super_user_only, method, *args, **kwargs)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/pulp/server/webservices/views/decorators.py", line 195, in _verify_auth
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     value = method(self, *args, **kwargs)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/pulp/server/webservices/views/util.py", line 130, in wrapper
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     return func(*args, **kwargs)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/pulp/server/webservices/views/repositories.py", line 1058, in post
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     async_result = repo_controller.queue_sync_with_auto_publish(repo_id, overrides)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/celery/local.py", line 167, in <lambda>
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     __call__ = lambda x, *a, **kw: x._get_current_object()(*a, **kw)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/pulp/server/async/tasks.py", line 103, in __call__
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     return super(PulpTask, self).__call__(*args, **kwargs) 
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/celery/app/task.py", line 420, in __call__
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     return self.run(*args, **kwargs)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/pulp/server/controllers/repository.py", line 700, in queue_sync_with_auto_publish
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     kwargs=kwargs)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/pulp/server/async/tasks.py", line 400, in apply_async_with_reservation
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     queue=RESOURCE_MANAGER_QUEUE)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/pulp/server/async/tasks.py", line 95, in apply_async
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     return super(PulpTask, self).apply_async(*args, **kwargs)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/celery/app/task.py", line 555, in apply_async
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     **dict(self._get_exec_options(), **options)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/celery/app/base.py", line 351, in send_task
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     reply_to=reply_to or self.oid, **options
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/celery/app/amqp.py", line 305, in publish_task
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     **kwargs
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/kombu/messaging.py", line 172, in publish
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     routing_key, mandatory, immediate, exchange, declare)  
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/kombu/connection.py", line 436, in _ensured
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     return fun(*args, **kwargs)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/kombu/messaging.py", line 177, in _publish
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     channel = self.channel
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/kombu/messaging.py", line 194, in _get_channel
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     channel = self._channel = channel()
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/kombu/utils/__init__.py", line 425, in __call__
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     value = self.__value__ = self.__contract__()
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/kombu/messaging.py", line 209, in <lambda>
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     channel = ChannelPromise(lambda: connection.default_channel)
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/kombu/connection.py", line 756, in default_channel
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     self.connection
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/kombu/connection.py", line 741, in connection
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     self._connection = self._establish_connection()
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/kombu/connection.py", line 696, in _establish_connection
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     conn = self.transport.establish_connection()
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)   File "/usr/lib/python2.7/site-packages/kombu/transport/qpid.py", line 1600, in establish_connection
pulp.server.webservices.middleware.exception:ERROR: (30990-64096)     conn.get_qpid_connection().set_exception_notify_handler(
pulp.server.webservices.middleware.exception:ERROR: (30990-64096) AttributeError: Connection instance has no attribute 'set_exception_notify_handler'