Hello,
I'm testing what in object in a test env with novirt1 and novirt2 as hosts.
First reinstalled host is novirt2
For this I downloaded the 4.4.8 iso of the node:
https://resources.ovirt.org/pub/ovirt-4.4/iso/ovirt-node-ng-installer/4.4.8-2021081816/el8/ovirt-node-ng-installer-4.4.8-2021081816.el8.iso

before running the restore command for the first scratched node I pre-installed the appliance rpm on it and I got:
ovirt-engine-appliance-4.4-20210818155544.1.el8.x86_64

I selected to pause an d I arrived here with local vm engine completing its setup:

 INFO  ] TASK [ovirt.ovirt.hosted_engine_setup : Add host]
[ INFO  ] changed: [localhost]
[ INFO  ] TASK [ovirt.ovirt.hosted_engine_setup : Include after_add_host tasks files]
[ INFO  ] You can now connect to https://novirt2.localdomain.local:6900/ovirt-engine/ and check the status of this host and eventually remediate it, please continue only when the host is listed as 'up'
[ INFO  ] TASK [ovirt.ovirt.hosted_engine_setup : include_tasks]
[ INFO  ] ok: [localhost]
[ INFO  ] TASK [ovirt.ovirt.hosted_engine_setup : Create temporary lock file]
[ INFO  ] changed: [localhost]
[ INFO  ] TASK [ovirt.ovirt.hosted_engine_setup : Pause execution until /tmp/ansible.4_o6a2wo_he_setup_lock is removed, delete it once ready to proceed]

But connecting t the provided https://novirt2.localdomain.local:6900/ovirt-engine/ url
I see that only the still 4.3.10 host results up while novirt2 is not resp[onsive

vm situation:
https://drive.google.com/file/d/1OwHHzK0owU2HWZqvHFaLLbHVvjnBhRRX/view?usp=sharing

storage situation:
https://drive.google.com/file/d/1D-rmlpGsKfRRmYx2avBk_EYCG7XWMXNq/view?usp=sharing

hosts situation:
https://drive.google.com/file/d/1yrmfYF6hJFzKaG54Xk0Rhe2kY-TIcUvA/view?usp=sharing

In engine.log I see

2021-08-25 09:14:38,548+02 ERROR [org.ovirt.engine.core.vdsbroker.HostDevListByCapsVDSCommand] (EE-ManagedThreadFactory-engine-Thread-4) [5f4541ee] Command 'HostDevListByCapsVDSCommand(HostName = novirt2.localdomain.local, VdsIdAndVdsVDSCommandParametersBase:{hostId='ca9ff6f7-5a7c-4168-9632-998c52f76cfa', vds='Host[novirt2.localdomain.local,ca9ff6f7-5a7c-4168-9632-998c52f76cfa]'})' execution failed: java.net.ConnectException: Connection refused

and continuouslly this message...

I also tried to restart vdsmd on novit2 but nothing changed.

Do I have to restart the HA daemons on novirt2?

Any insight?

Thanks
Gianluca