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On Jul 27, 2012, at 8:22 AM, Jay Pipes <jaypipes at gmail.com> wrote:

> I'd also love to see standardization around the binding of services to
> sockets. In Nova-land, each service has its own nova.conf value -- for
> example, there is a host/port pair for each of nova-os-api,
> nova-ec2-api, nova-metadata-api, etc: (see [1])
> 
> osapi_compute_listen=0.0.0.0
> osapi_compute_listen_port=8774
> ec2_listen=0.0.0.0
> ec2_listen_port=8773
> metadata_listen=0.0.0.0
> metadata_listen_port=8775
> 
> There are also nova.conf options that duplicate the above (not sure if
> these even are used any more...):
> 
> ec2_host=$my_ip
> ec2_port=8773
> metadata_host=$my_ip
> metadata_port=8775

FYI the purpose of multiple values is there is a difference between where
the api is listening and where one needs to connect to it.
The _host / _port are for incoming connections. This is important
for load balancing situations.

Vish