Description of configuration options for redis

Configuration option = Default value	Description
[DEFAULT]
host = localhost	(StrOpt) Name of the engine node. This can be an opaque identifier. It is not necessarily a hostname, FQDN, or IP address.
[matchmaker_redis]
host = 127.0.0.1	(StrOpt) Host to locate redis.
password = None	(StrOpt) Password for Redis server (optional).
port = 6379	(IntOpt) Use this port to connect to redis host.