[ovirt-users] oVirt non-self-hosted HA

[Yaniv Kaul]

On Wed, Apr 4, 2018 at 12:39 AM, Tom <tk at mdevsys.com> wrote:

>
>
> Sent from my iPhone
>
> On Apr 3, 2018, at 9:32 AM, Yaniv Kaul <ykaul at redhat.com> wrote:
>
>
>
> On Tue, Apr 3, 2018 at 3:12 PM, TomK <tomkcpr at mdevsys.com> wrote:
>
>> Hey Guy's,
>>
>> If I'm looking to setup the oVirt engine in an HA configuration off the
>> physical servers hosting my VM's (non self hosted), what are my options
>> here?
>>
>> I want to setup two to four active oVirt engine instances elsewhere and
>> handle the HA via something like haproxy / keepalived to keep the entire
>> experience seamless to the user.
>>
>
> You will need to set up the oVirt engine service as well as the PG
> database (and ovirt-engine-dwhd service and any other service we run next
> to the engine) as highly available module.
> In pacemaker[1], for example.
> You'll need to ensure configuration is also sync'ed between nodes, etc.
> Y.
>
>
> So already have one ovirt engine setup separately on a vm that manages two
> remote physical hosts.  So familiar with the single host approach which I
> would simply replicate.  At least that’s the idea anyway.  Could you please
> expand a bit on the highly available module and  syncing the config between
> hosts?
>

That's a different strategy, which is also legit - you treat this VM as a
highly available resource. Now you do not need to sync the config - just
the VM disk and config.
Perhaps something like
https://www.unixarena.com/2015/12/rhel-7-pacemaker-configuring-ha-kvm-guest.html
.

But if you are already doing that, I'm not sure why you'd prefer this over
hosted-engine setup.
Y.

>
> Cheers,
> Tom
>
>
> [1] https://clusterlabs.org/quickstart-redhat.html
>
>>
>> From what I've seen in oVirt, that seems to be possible without the two
>> oVirt engines even knowing each other's existence but is it something
>> anyone has ever done?  Any recommendations in this case?
>>
>> Having settings replicated would be a bonus but I would be comfortable if
>> they weren't and I handle that myself.
>>
>> --
>> Cheers,
>> Tom K.
>> ------------------------------------------------------------
>> -------------------------
>>
>> Living on earth is expensive, but it includes a free trip around the sun.
>>
>> _______________________________________________
>> Users mailing list
>> Users at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ovirt.org/pipermail/users/attachments/20180404/f5db5cd0/attachment.html>