Description of configuration options for amqp

Configuration option = Default value	Description
[DEFAULT]
amqp_auto_delete = False	(BoolOpt) Auto-delete queues in amqp.
amqp_durable_queues = False	(BoolOpt) Use durable queues in amqp.
notification_driver = []	(MultiStrOpt) Driver or drivers to handle sending notifications.
notification_topics = notifications	(ListOpt) AMQP topic used for OpenStack notifications.
rpc_backend = rabbit	(StrOpt) The messaging driver to use, defaults to rabbit. Other drivers include qpid and zmq.
rpc_conn_pool_size = 30	(IntOpt) Size of RPC connection pool.
rpc_response_timeout = 60	(IntOpt) Seconds to wait for a response from a call.
rpc_thread_pool_size = 64	(IntOpt) Size of RPC greenthread pool.
transport_url = None	(StrOpt) A URL representing the messaging driver to use and its full configuration. If not set, we fall back to the rpc_backend option and driver specific configuration.