Re: [rdo-list] tripleo ha topology
On 14/12/2016 22:59, Dotan, Alon wrote:
Hey,
Some can provide link or explanation about the use of haproxy and
pacemaker together in tripleo?
Why need pcs if there is galera and haproxy?
Galera is managed via a specific resource agent which takes care of all
the stuff needed to start, stop and, most of all, recover. It automates
a lot of tasks which otherwise will be manual.
Haproxy is managed by Pacemaker because of the Vips. There are specific
constraints that ensures that whether a Vip change the host, haproxy
service will follow.
Hope this helps,
--
Raoul Scarazzini
rasca(a)redhat.com