Comment 3 for bug 1885430

After investigating a bit more, I also find that libvirtd.service was started at 03:19, and it appears the pollster error leads back to this failing to connect to libvirt. https://github.com/openstack/ceilometer/blob/c0632ae9e0f2eecbf0da9578c88f7c85727244f8/ceilometer/compute/virt/libvirt/inspector.py#L201

"Should-start" is a misnomer. I believe the proper attribute from systemd.unit(5) would be "Wants=".