The last thing I need is the complication of having the engine hosted on the cluster. It's way too easy to shoot yourself in the foot that way.
On Tue, 14 Jun 2022, Guillaume Pavese wrote:
> Not sure about recovering your cluster on a 4.5 install with a 4.4 backup. I
> would also like to know if that is possible.
It's definitely possible. I had an issue with my 4.4->4.5 upgrade (always
make a backup first) and wanted to switch my engine from CentOS Stream to
Rocky anyway, so I built a new host and installed 4.5 using my backup from
4.4.10.
With 4.3->4.4 this was the only way to upgrade due to the OS version
change. 4.3 requires el7, 4.4 requires el8, and there is no in-place
el7->el8 upgrade (except maybe for very specific versions of RHEL). So
you had to make a backup on 4.3, reinstall your engine host with el8, then
restore the backup on 4.4. Plus a few extra steps if using
the self-hosted engine...