Dear Sean, This is the document which Riwal has spoken this morning at the TM, concerning the HA deployment with Fuel. https://docs.mirantis.com/openstack/fuel/fuel-7.0/reference-architecture.html#multi-node-with-ha-deployment I hope that will help also. BR, Cristian De : fiware-lab-federation-nodes-bounces at lists.fiware.org [mailto:fiware-lab-federation-nodes-bounces at lists.fiware.org] De la part de Sean Murphy Envoyé : mardi 19 janvier 2016 11:21 À : Giuseppe Cossu Cc : fiware-lab-federation-nodes at lists.fiware.org Objet : Re: [Fiware-lab-federation-nodes] HA Proxy and VIP Hi Guiseppe, That's great - thanks for that. On a very related note, do you have some set of reasonable tests that you run on a HA system to determine if it is behaving itself? (I'm sure this would be useful for everyone). BR, Seán. On Tue, Jan 19, 2016 at 11:16 AM, Giuseppe Cossu <giuseppe.cossu at create-net.org<mailto:giuseppe.cossu at create-net.org>> wrote: Hello all, Sean, Sorry I didn't understand the question, but at the end I got it. In the OpenStack environment deployed by FUEL 7, there is the HA proxy that does a bind to a VIP (it is not a floating IP). VIP is an additional (public in that case) IP managed by the Corosync/Pacemaker as a resource of the cluster. So basically each controller has a fixed public IP and the HA proxy sends the incoming requests to one the controllers. That is valid for all the endpoints of OpenStack (nova, neutron, etc.). Look at the image as example. So the endpoints are like this: http://<VIP_addrees>:<PORT<http://%3cVIP_addrees%3e:%3cPORT>> So if a controller goes down the endpoint is the same. The HAproxy sends the requests to the up & running controllers. As mentioned the VIP is managed by Corosync/Pacemaker. In order to see all the resources of the FUEL deployed environment, use that useful command "crm status". In this way you can see all the cluster resources, including the public VIP resource called "vip__public". There is also a private vip called "vip__management". Best Regards, Giuseppe -- -------------------------------------------------------- Giuseppe Cossu CREATE-NET Smart Infrastructures Research Engineer Via alla Cascata 56/D - 38123 Povo Trento (Italy) e-mail: giuseppe.cossu at create-net.org<mailto:giuseppe.cossu at create-net.org> Tel: (+39) 0461312428<tel:%28%2B39%29%C2%A00461312428> www.create-net.org<http://www.create-net.org> -------------------------------------------------------- -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.fiware.org/private/fiware-lab-federation-nodes/attachments/20160119/e9585aec/attachment.html>
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