Re: [rdo-list] tripleo ha topology
So if understood correctly HAproxy is basically a component in pcs?
-----Original Message-----
From: Raoul Scarazzini [mailto:rasca@redhat.com]
Sent: Thursday, December 15, 2016 10:33 AM
To: Dotan, Alon <alon.dotan(a)hpe.com>; rdo-list(a)redhat.com
Subject: 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