--server.admin-port and --server.http-port issues

[jsteemann]

The server has an option --server.admin-port.
If no value is set for this, a default value is used.
There currently is no way to turn off the admin port completely. There is also no way to use the same port for --server.http-port and --server.admin-port. If the following startup option is used, the server will try to bind to the same port twice:

$ ./avocado --server.http-port 9000 --server.admin-port 9000
2012-03-21T16:13:41Z [26997] ERROR bind failed with 98 (Address already in use)
2012-03-21T16:13:41Z [26997] INFO bind to address '::' port '9000'
2012-03-21T16:13:41Z [26997] ERROR bind failed with 98 (Address already in use)
2012-03-21T16:13:42Z [26997] INFO bind to address '0.0.0.0' port '9000'
2012-03-21T16:13:42Z [26997] ERROR bind failed with 98 (Address already in use)
2012-03-21T16:13:42Z [26997] INFO bind to address '::' port '9000'
...

Furthermore, if only a port number is specified for --server.http-port, then the server will issue an error on startup:

$ ./avocado --server.http-port 9000
2012-03-21T16:21:08Z [27173] ERROR bind failed with 98 (Address already in use)

The second bind does fail, but the server still starts.

[fceller]

added shared client / admin port. If "admin-port" is admin, http-port will be client and admin