Re: [Rdo-list] Simplest Icehouse Implementation Architecture

On Tue, Jun 03, 2014 at 10:55:43AM -0400, Eric Berg wrote: > I have performed this installation and now have a control host and one > compute host, but am not sure of a few things: > > 1. First, I believe that I need nova-networking running on each compute > hosts to avoid routing all traffic through a dedicated network host, > but I'm not sure how to check to see that the networking service is > running on my compute host. > 2. Lars helped me set up a single-host setup, which put my instances on > our 192.168.0.0/16 network by using an ovs bridge (br-ex) with the > IP of the host on the bridge, which owns eth0, but I'm not sure how > that relates to this new setup. Should I create the same type of > bridged connection on each compute host? Eric, If you're working with the configuration you and I worked on, you're using neutron, so you can't use nova-networking on each compute host, unless you decide to ditch neutron. Neutron does not have an operational model matching nova-network's multi-host mode. You can set up Neutron in an active/passive configuration if you want to have some fault tolerance, but a given external network is always going to route through a single node when using the native Linux layer 3 agent. You can use vendor plugins from Cisco, etc., if you need a more performant configuration (but I don't have any details on what that would look like).