Redownload the latest 4.4 release rpm and install it on the hosts.
That
should fix your mirrorlists.
Patrick, I'm not sure how updating the hosts first would fix the
mirrorlist/repositories on the hosted engine.
The command I ran on the hosted engine, per the published instructions was:
# dnf update ovirt\*setup\*
which should update only the oVirt packages. Can/should I disable the broken CentOS Linux
repositories and try again?