Hi Gilboa,

Here are some guidelines/checks:

- Are you able to create a 4.5 DC/cluster?

- Host can be Up in the 4.5 clusters only when it reports 4.5 level compatibility (it's based on RHEL 8.3).

  Can you make sure that on all 3 hosts?

- You can upgrade the 4.4 clusters to 4.5 only when all Up/NonOperational hosts are reporting 4.5 level
- You can upgrade 4.4 DC to 4.5 only when all clusters inside are on the 4.5 level
- A 4.5 host-based on RHEL 8.3 should be fully functional in 4.2/4.3/4.4 clusters

Regards,

Shani Leviim

On Wed, Dec 16, 2020 at 12:53 PM Gilboa Davara <gilboad@gmail.com> wrote:

Hello all,

I'm more-or-less finished building a new ovirt over glusterfs cluster with 3 fairly beefy servers.

Nodes were fully upgraded to CentOS Linux release 8.3.2011 before they joined the cluster.

Looking at the cluster view in the WebUI, I get an exclamation mark with the following message: "Upgrade cluster compatibility level".

When I try to upgrade the cluster, 2 of the 3 hosts go into maintenance and reboot, but once the procedure is complete, the cluster version remains the same.

Looking at the host vdsm logs, I see that once the engine refreshes their capabilities, all hosts return 4.2-4.4 and not 4.5.

E.g.

 'supportedENGINEs': ['4.2', '4.3', '4.4'], 'clusterLevels': ['4.2', '4.3', '4.4']

I assume I should be seeing 4.5 after the upgrade, no?

AmI missing something?

Thanks,

- Gilboa

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