Sounds good to me. Even if pacemaker is heavier, less options and consistency is better.
Greetings from Mexico :D On Fri, 13 Jul 2018, 13:33 Emilien Macchi, <[email protected]> wrote: > Greetings, > > We have been supporting both Keepalived and Pacemaker to handle VIP > management. > Keepalived is actually the tool used by the undercloud when SSL is enabled > (for SSL termination). > While Pacemaker is used on the overcloud to handle VIPs but also services > HA. > > I see some benefits at removing support for keepalived and deploying > Pacemaker by default: > - pacemaker can be deployed on one node (we actually do it in CI), so can > be deployed on the undercloud to handle VIPs and manage HA as well. > - it'll allow to extend undercloud & standalone use cases to support > multinode one day, with HA and SSL, like we already have on the overcloud. > - it removes the complexity of managing two tools so we'll potentially > removing code in TripleO. > - of course since pacemaker features from overcloud would be usable in > standalone environment, but also on the undercloud. > > There is probably some downside, the first one is I think Keepalived is > much more lightweight than Pacemaker, we probably need to run some > benchmark here and make sure we don't make the undercloud heavier than it > is now. > > I went ahead and created this blueprint for Stein: > https://blueprints.launchpad.net/tripleo/+spec/undercloud-pacemaker-default > I also plan to prototype some basic code soon and provide an upgrade path > if we accept this blueprint. > > This is something I would like to discuss here and at the PTG, feel free > to bring questions/concerns, > Thanks! > -- > Emilien Macchi > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: [email protected]?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >
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