Re: [ovirt-users] ovirt 3.6, we had the ovirt manager go down in a bad way and all VMs for one node marked Unknown and Not Reponding while up

On 01/25/2018 04:57 PM, Douglas Landgraf wrote: > On Thu, Jan 25, 2018 at 5:12 PM, Christopher Cox <ccox(a)endlessnow.com&gt; wrote: >> On 01/25/2018 02:25 PM, Douglas Landgraf wrote: >>> >>> On Wed, Jan 24, 2018 at 10:18 AM, Christopher Cox <ccox(a)endlessnow.com&gt; >>> wrote: .... >>> >>> Probably it's time to think to upgrade your environment from 3.6. >> >> >> I know. But from a production standpoint mid-2016 wasn't that long ago. >> And 4 was just coming out of beta at the time. >> >> We were upgrading from 3.4 to 3.6. And it took a long time (again, because >> it's all "live"). Trust me, the move to 4.0 was discussed, it was just a >> timing thing. >> >> With that said, I do "hear you"....and certainly it's being discussed. We >> just don't see a "good" migration path... we see a slow path (moving nodes >> out, upgrading, etc.) and knowing that as with all things, nobody can >> guarantee "success", which would be a very bad thing. So going from working >> 3.6 to totally (potential) broken 4.2, isn't going to impress anyone here, >> you know? If all goes according to our best guesses, then great, but when >> things go bad, and the chance is not insignificant, well... I'm just not >> quite prepared with my résumé if you know what I mean. >> >> Don't get me wrong, our move from 3.4 to 3.6 had some similar risks, but we >> also migrated to whole new infrastructure, a luxury we will not have this >> time. And somehow 3.4 to 3.6 doesn't sound as risky as 3.6 to 4.2. > > I see your concern. However, keep your system updated with recent > software is something I would recommend. You could setup a parallel > 4.2 env and move the VMS slowly from 3.6. Understood. But would people want software that changes so quickly? This isn't like moving from RH 7.2 to 7.3 in a matter of months, it's more like moving from major release to major release in a matter of months and doing again potentially in a matter of months. Granted we're running oVirt and not RHV, so maybe we should be on the Fedora style upgrade plan. Just not conducive to an enterprise environment (oVirt people, stop laughing).

>> Is there a path from oVirt to RHEV? Every bit of help we get helps us in >> making that decision as well, which I think would be a very good thing for >> both of us. (I inherited all this oVirt and I was the "guy" doing the 3.4 to >> 3.6 with the all new infrastructure). > > Yes, you can import your setup to RHEV. Good to know. Because of the fragility (support wise... I'm mean our oVirt has been rock solid, apart from rare glitches like this), we may follow this path.