Description of RPC configuration options

Configuration option = Default value	Description
[DEFAULT]
matchmaker_heartbeat_freq = 300	(IntOpt) Heartbeat frequency.
matchmaker_heartbeat_ttl = 600	(IntOpt) Heartbeat time-to-live.
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 thread pool.
[oslo_concurrency]
disable_process_locking = False	(BoolOpt) Enables or disables inter-process locks.
lock_path = None	(StrOpt) Directory to use for lock files. For security, the specified directory should only be writable by the user running the processes that need locking. Defaults to environment variable OSLO_LOCK_PATH. If external locks are used, a lock path must be set.