Hi Thomas,

some feedback from Oracle:

On Apr 17, 2024, at 5:12 PM, Thomas Hoberg <thomas@hoberg.net> wrote:

I've tried to re-deploy oVirt 4.3 on CentOS7 servers because I had managed to utterly destroy a HCI farm, where most VMs had migrated to Oracles variant of RHV 4.4 on Oracle Linux. I guess I grew a bit careless towards its end.

Mostly it was just an academic exercise to see if it could be resurrected... I was much happier with the Oracle variant anyway.

Good to know!


And I've hit similar issues all over the place: the ansible scripts and/or the python packages they interact with are utterly broken with now years of completely disjunct bug-fixing going on.

The underlying CentOS 7 packages continue in maintenance (some more weeks to go..), but the oVirt 4.3 on top has been unmaintained for years.

Since these are just sanity checks, I deleted all of them, one after the other (and there is lots of them!), and I eventually got it to work again.

Don't have a single VM on it, though, because you can't trust it, the hardware is ancient and it really was just a finger exercise at that stage. With CentOS 7 going out of support now, it's really messing with a corpse.

I'm currently operating Oracle's 4.4 variant running on their Linux, too, which still has Gluster based HCI built-in, even if they don't mention it at all.

We mention it on our docs: https://docs.oracle.com/en/virtualization/oracle-linux-virtualization-manager/getstart/getstarted-hosted-engine-deploy.html#he-deploy-prereqs and it’s still there for 4.5 release.


Just make sure you switch their Unbreakable Linux kernel for the Redhat variant everywhere, otherwise you'll risk all kinds of nasties.

We support both UEK and RHCK (Red Hat Compatible Kernel); if an issue is there, we want to know :)


It's been way more stable than oVirt 4.3 ever was, but that doesn't mean it's "enterprise": that was always one fat big exaggeration, withful thinking, whatever.

This is due to oVirt people and our own testing too! oVirt 4.4 is, for sure, more stable too.


And don't fall for their 4.5 variant, that came out end of last year: that one doesn't support HCI any more and actually seems to fail withOUT their Enterprise Linux kernels.

We still support HCI and we still support our own kernel (UEK) as well as the Red Hat Compatible one.


And no, it doesn't run on EL9 either, that might take another year or so, as Oracle's oVirt implementation is almost a year behind oVirt at the moment.

This is our choice; we today have the same UEK7 kernel (5.15.0-x) available for OL8 and OL9 and we do not see any reason to force our customers/users to upgrade to 9.

Simon

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