[Users] HA schema for ovirt?

[José Román Bilbao]

Thanks for the info. I am committed to help on this, but I don't know where
to start... Can you point me on the right direction?

Thanks,

Jode
El 04/11/2011 17:11, "Perry Myers" <pmyers at redhat.com> escribió:

> > As one of my priorities on a virtualization platform is to offer HA, I
> > wanted to know how does it work on the ovirt architecture. I mean, I my
> > management node fails, is HA still running on the ovirt-nodes (is
> > distributed ) or is it manager dependent?
>
> Right now if the oVirt Engine server fails, HA of the guests running on
> oVirt Nodes will not work.  This is because the oVirt Engine is what
> coordinates monitoring and restart of the guests marked as HA.
>
> Today, the best way to protect against that double-failure is to provide
> HA for the oVirt Engine itself.  This can be done by setting up a 2 node
> HA cluster via a HA stack like Pacemaker or RHEL Clustering.  Pacemaker
> is in lots of distributions, so this is a fairly ubiquitous way of
> providing HA for non-HA aware services.
>
> In the future, the goal is to make the oVirt Engine HA aware via
> something similar to JBoss clustering combined with database
> replication/clustering.  This will remove the need for a separate HA stack.
>
> Also, my understanding is that the roadmap for vdsm is to provide it
> with more intelligence/policies so that it can take care of some of the
> HA features even in the absence of the oVirt Engine running.
>
> The enhanced vdsm for policy/HA is a roadmap item, as is making the
> Engine HA aware.  We could certainly use help implementing those items :)
>
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