Okay thanks for that, a few moments of darkness is fine. Is this right :
On the existing and new network nodes 1. Apply this patch to Quantum: https://gist.github.com/jaypipes/8135839 2. Set the router_scheduler_driver in nova.conf to quantum.scheduler.l3_agent_scheduler.LeastUtilizedScheduler Reference:https://github.com/stackforge/cookbook-openstack-network/blob/mas ter/templates/default/neutron.conf.erb#L232 3. Put this script into a cron job: https://github.com/stackforge/cookbook-openstack-network/blob/master/files/ default/neutron-ha-tool.py What do I need to do to make the DHCP and Metadata agent schedulable ? "Depending on if you use namespaces or not you will have to make sure the router_id in the l3_agent.ini on the new node is properly set to the same id)² I am assuming if I silly SCP the configs from the first network node to the second this will take care of that ? (We don¹t use namespaces anyhow) -- Geraint Jones Director of Systems & Infrastructure Koding https://koding.com gera...@koding.com Phone (415) 653-0083 On 17/02/14 8:06 pm, "Robert van Leeuwen" <robert.vanleeu...@spilgames.com> wrote: >> We currently have a single network node in our deployment, we need to >>upgrade it to 10gb >> So I thought, I would add a second network node and do a swing >>migration and thus avoid an outage. >> >> Is this possible in havana ? Whats the process to do it ? > >Yes and no. >Yes, you can migrate the l3 node to a different machine but no, it will >not be 100% instantaneous. >Depending on how many networks are connected to the l3 agent it will take >some time for each of those to be up & running although it will probably >be running again within a minute. >I would certainly not do this without announcing some kind of maintenance >window.. > >The steps depend a bit on the configuration. >I would not do this without doing a test with a dev setup first so you >get comfortable with how this works. >Do not forget that the l3 agent is also NATing for floating IPs and the >metadata agent so make sure that also keeps working. >( usually it entails running "neutron l3-agent-router-remove $AGENTID >$ROUTERID" which should be schedule the router on a new l3 node. >Depending on if you use namespaces or not you will have to make sure the >router_id in the l3_agent.ini on the new node is properly set to the same >id) > >Cheers, >Robert van Leeuwen _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack