2016-06-08 04:23:11.106 1 INFO nova.console.websocketproxy [-] WebSocket server settings:
2016-06-08 04:23:11.106 1 INFO nova.console.websocketproxy [-]   - Listen on 0.0.0.0:6080
2016-06-08 04:23:11.107 1 INFO nova.console.websocketproxy [-]   - Flash security policy server
2016-06-08 04:23:11.107 1 INFO nova.console.websocketproxy [-]   - Web server (no directory listings). Web root: /usr/share/novnc
2016-06-08 04:23:11.107 1 INFO nova.console.websocketproxy [-]   - No SSL/TLS support (no cert file)
2016-06-08 04:23:11.108 1 CRITICAL nova [-] error: [Errno 98] Address already in use
2016-06-08 04:23:11.108 1 ERROR nova Traceback (most recent call last):
2016-06-08 04:23:11.108 1 ERROR nova   File "/usr/bin/nova-novncproxy", line 10, in <module>
2016-06-08 04:23:11.108 1 ERROR nova     sys.exit(main())
2016-06-08 04:23:11.108 1 ERROR nova   File "/usr/lib/python2.7/site-packages/nova/cmd/novncproxy.py", line 51, in main
2016-06-08 04:23:11.108 1 ERROR nova     port=CONF.novncproxy_port)
2016-06-08 04:23:11.108 1 ERROR nova   File "/usr/lib/python2.7/site-packages/nova/cmd/baseproxy.py", line 72, in proxy
2016-06-08 04:23:11.108 1 ERROR nova     RequestHandlerClass=websocketproxy.NovaProxyRequestHandler
2016-06-08 04:23:11.108 1 ERROR nova   File "/usr/lib/python2.7/site-packages/websockify/websocket.py", line 973, in start_server
2016-06-08 04:23:11.108 1 ERROR nova     tcp_keepintvl=self.tcp_keepintvl)
2016-06-08 04:23:11.108 1 ERROR nova   File "/usr/lib/python2.7/site-packages/websockify/websocket.py", line 742, in socket
2016-06-08 04:23:11.108 1 ERROR nova     sock.listen(100)
2016-06-08 04:23:11.108 1 ERROR nova   File "/usr/lib64/python2.7/socket.py", line 224, in meth
2016-06-08 04:23:11.108 1 ERROR nova     return getattr(self._sock,name)(*args)
2016-06-08 04:23:11.108 1 ERROR nova error: [Errno 98] Address already in use
2016-06-08 04:23:11.108 1 ERROR nova