I successfully deployed an oVirt 4.2 self-hosted engine setup just over 6 months ago, and recently tried to re-install to modify hostnames on the engine and hypervisor.  After I cleaned up and re-ran hosted-engine --deploy my install failed right at the end (TASK [Wait for the engine to come up on the target VM]) with the following error:

ERROR otopi.ovirt_hosted_engine_setup.ansible_utils ansible_utils._process_output:98 fatal

and the following engine vm status:
Engine status: {"reason": "failed liveliness check", "health": "bad", "vm": "up", "detail": "Up"}

I opted to do a clean re-install of CentOS 7.5 and try again, but I keep running into the same error (see the attached logs).

Some details that may or may not be helpful:

 - I'm reusing old mount points without formatting such as /home and my previous NFS-exported storage domain LVMs.  The root partition, swap, /boot, and the engine destination LVMs were all re-formatted during the CentOS 7.5 install or prior to attempted oVirt install.

- I'm reusing the MAC address from the previous attempt (so that it picks up the static entry I put on my router).

- I currently only have entries in /etc/hosts to map FQDNs to IPs, but the install fails the same way whether or not I tell the process to populate the engine VM's hosts file.

- Prior to my re-install of CentOS 7.5 I tried, and was able, to log into the engine appliance.  I saw the hosted engine VM was listed as "down", and there was some temporary VM (leftover from the install process?) that I couldn't do anything to.

Thanks in advance for your help!