Description of configuration options for rpc

Configuration option = Default value	Description
[DEFAULT]
dispatcher = ['database']	(MultiStrOpt) Dispatcher to process data.
rpc_backend = rabbit	(StrOpt) The messaging driver to use, defaults to rabbit. Other drivers include qpid and zmq.
rpc_cast_timeout = 30	(IntOpt) Seconds to wait before a cast expires (TTL). Only supported by impl_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.
rpc_zmq_bind_address = *	(StrOpt) ZeroMQ bind address. Should be a wildcard (*), an ethernet interface, or IP. The "host" option should point or resolve to this address.
rpc_zmq_contexts = 1	(IntOpt) Number of ZeroMQ contexts, defaults to 1.
rpc_zmq_host = localhost	(StrOpt) Name of this node. Must be a valid hostname, FQDN, or IP address. Must match "host" option, if running Nova.
rpc_zmq_ipc_dir = /var/run/openstack	(StrOpt) Directory for holding IPC sockets.
rpc_zmq_matchmaker = oslo.messaging._drivers.matchmaker.MatchMakerLocalhost	(StrOpt) MatchMaker driver.
rpc_zmq_port = 9501	(IntOpt) ZeroMQ receiver listening port.
rpc_zmq_topic_backlog = None	(IntOpt) Maximum number of ingress messages to locally buffer per topic. Default is unlimited.
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.
[notification]
messaging_urls = []	(MultiStrOpt) Messaging URLs to listen for notifications. Example: transport://user:pass@host1:port[,hostN:portN]/virtual_host (DEFAULT/transport_url is used if empty)
[publisher]
metering_secret = change this or be hacked	(StrOpt) Secret value for signing metering messages.
[publisher_rpc]
metering_topic = metering	(StrOpt) The topic that ceilometer uses for metering messages.