Description of configuration options for wsgi

Configuration option = Default value	Description
[DEFAULT]
backdoor_port = None	(IntOpt) port for eventlet backdoor to listen
eventlet_hub = poll	(StrOpt) Name of eventlet hub to use. Traditionally, we have only supported 'poll', however 'selects' may be appropriate for some platforms. See http://eventlet.net/doc/hubs.html for more details.
max_header_line = 16384	(IntOpt) Maximum line size of message headers to be accepted. max_header_line may need to be increased when using large tokens (typically those generated by the Keystone v3 API with big service catalogs
tcp_keepidle = 600	(IntOpt) The value for the socket option TCP_KEEPIDLE. This is the time in seconds that the connection must be idle before TCP starts sending keepalive probes.