I have a 3-node hyperconverged cluster with Gluster filesystem running on RHEL 8.3 hosts.

It's been stable on oVirt 4.5.

Today, I just upgraded the Engine to v4.6.

I then logged into the oVirt manager, navigated to Compute -> Clusters, and clicked on Upgrade.

The Status of the cluster does have an exclamation mark that says "Upgrade Cluster Compatibility Level", but my understanding is, I shouldn't do that until all 3 of my hosts have been upgraded.

Looking at active tasks, I see that the first host in my cluster is stuck in "Upgrading".

It's now been like this for 3 hours, without any visible progress.

If I try to launch a VM that is not configured for high availability, the VM fails to launch, and I get a message about the cluster being in "Maintenance Mode" and that none of the hosts satisfies current scheduling restraints.

How do I....

a) Cancel / clear the upgrade and take the cluster out of "maintenance mode"

b) Properly upgrade the cluster, since clicking the "Upgrade" button clearly didn't work?

Thanks,
David