we currently have the problem that a call to /ovirt-engine/api/clusters takes over 2 minutes. I'd like to debug this, as this is new for the newer version (currently 220.127.116.11-1.el7).
The issue only appears on larger setups, here as a example:
storage domains: 20
virtual machines: 3552
As I'm usually only a admin and not a developer for oVirt i don't know where to start debugging this issue. As this only appears in larger scales, our stage environment can't be used for debugging and getting into the code.
Any advise on how to approach this? (to starting with smaller things, i don't have the time unfortunately)
1&1 IONOS SE
we have an issue with latest AdvancedVirt and our current CentOS 8.1 based OST. libguestfs seems to be always failing (tested by commented out virt-sparsify test, so it’s not visible normally) and we have no such issues when running same tests on RHEL 8.2. So I tried to move on and update to CentOS Stream and indeed it seems to be working ok. With CentOS 8.2 getting closer but not there yet maybe it’s best to use CentOS Stream for now. There is some interest from users as well, and we can’t really do anything to fix those 8.1 issues other than remove AV update and keep using old stuff with old bugs.
To run on Stream we need two things. openvswitch compatible with 8.2/Stream. I used Dominik’s  and to fix apparently missing ansible-runner dependency on python3-pyutils (Martin, please address. I suppose it was a transient dep before and it was just dropped)
I would suggest to move OST to CentOS Stream, and consider at least experimental support of CentOS Stream. It doesn’t seem like we’re missing much other than to point to the right repos.