Thanks for the prompt reply.
I assume I can safely ignore the "Upgrade cluster compatibility" warning
until libvirt 6.6 gets pushed to CentOS 8.3?
- Gilboa
On Wed, Dec 16, 2020 at 5:56 PM Martin Perina <mperina(a)redhat.com> wrote:
On Wed, Dec 16, 2020 at 2:25 PM Gilboa Davara <gilboad(a)gmail.com> wrote:
> Shani,
>
> 1. I created a new 4.5 cluster with the same CPU (Secure Intel
> Cascadelake Server Family) and platform type (Q35/BIOS).
> 2. All 3 hosts are 8.3, but report 4.4 compatibility.
> 3. The only reason I attempted to upgrade the cluster was simple: The
> cluster state kept on dropping down to "unavailable" (even though all 3
> hosts are up) and I was offered to upgrade the cluster to v4.5.
>
> - Gilboa
>
> On Wed, Dec 16, 2020 at 1:28 PM Shani Leviim <sleviim(a)redhat.com> wrote:
>
>> 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(a)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?
>>>
>>
EL 8.3 is not enough, you also need Advanced Virtualization 8.3 (in
particular libvirt 6.6)
>
>>> Thanks,
>>> - Gilboa
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--
Martin Perina
Manager, Software Engineering
Red Hat Czech s.r.o.