[Openstack-operators] [tripleo]Pacemaker in split controller mode
codeology.lab at gmail.com
Tue Sep 18 21:42:07 UTC 2018
I have a follow up question.
According to the TripleO docs for RHOPS 13/Queens, "you cannot scale
up or scale down a custom role that contains
OS::TripleO::Services::PacemakerRemote services." Does that only apply
to the role itself or all the pcmk-managed services within the role?
For instance, if I already split out the DB and messaging services
with a custom role, can I later create another custom role just to
scale up the DB service?
Thank you very much.
On Fri, Aug 31, 2018 at 3:52 PM Cody <codeology.lab at gmail.com> wrote:
> Got it! Thank you, Michele.
> On Fri, Aug 31, 2018 at 3:07 PM Michele Baldessari <michele at acksyn.org> wrote:
> > Hi,
> > On Fri, Aug 31, 2018 at 01:46:43PM -0400, Cody wrote:
> > > A quick question on TripleO. If I take any pacemaker managed services
> > > (e.g. database) from the monolithic controller role and put them onto
> > > another cluster, would that cluster be managed as a separate pacemaker
> > > cluster?
> > No, if you split off any pcmk-managed services to a separate role they
> > will still be managed by a single pacemaker cluster. Since Ocata we have
> > composable HA roles, so you can split off DB/messaging/etc to separate
> > nodes (roles). They will be all part of a single cluster.
> > cheers,
> > Michele
> > --
> > Michele Baldessari <michele at acksyn.org>
> > C2A5 9DA3 9961 4FFB E01B D0BC DDD4 DCCB 7515 5C6D
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