Hi, Artur,

Small update with vdsm status, forgot to include in previous post.

I partially fixed problem with VDSM start.

Bug "Failed to create session: Start job for unit user-0.slice failed with ‘canceled’”
is being described here
https://bugzilla.redhat.com/show_bug.cgi?id=1967962
and fix seem to be available here, so I have downgraded systemd with backport fix:
http://people.redhat.com/dtardon/systemd/bz1642460-backport-UserStopDelaySec=/

Now vdsmd service starts successfully, but node14 still cannot be activated because of same error. This is quite strange, before restart on Friday node just worked. There were no upgrades, nothing, just restart.

[root@node14 ~]# service vdsmd status
Redirecting to /bin/systemctl status vdsmd.service
● vdsmd.service - Virtual Desktop Server Manager
   Loaded: loaded (/usr/lib/systemd/system/vdsmd.service; enabled; vendor preset: disabled)
   Active: active (running) since Mon 2021-08-09 15:12:59 EEST; 4min 20s ago
  Process: 4066 ExecStartPre=/usr/libexec/vdsm/vdsmd_init_common.sh --pre-start (code=exited, status=0/SUCCESS)
 Main PID: 4130 (vdsmd)
    Tasks: 41 (limit: 615525)
   Memory: 59.5M
   CGroup: /system.slice/vdsmd.service
           └─4130 /usr/bin/python3 /usr/share/vdsm/vdsmd

Aug 09 15:12:55 node14.***.lv vdsmd_init_common.sh[4066]: vdsm: Running prepare_transient_repository
Aug 09 15:12:57 node14.***.lv vdsmd_init_common.sh[4066]: vdsm: Running syslog_available
Aug 09 15:12:57 node14.***.lv vdsmd_init_common.sh[4066]: vdsm: Running nwfilter
Aug 09 15:12:58 node14.***.lv vdsmd_init_common.sh[4066]: vdsm: Running dummybr
Aug 09 15:12:58 node14.***.lv vdsmd_init_common.sh[4066]: vdsm: Running tune_system
Aug 09 15:12:58 node14.***.lv vdsmd_init_common.sh[4066]: vdsm: Running test_space
Aug 09 15:12:59 node14.***.lv vdsmd_init_common.sh[4066]: vdsm: Running test_lo
Aug 09 15:12:59 node14.***.lv systemd[1]: Started Virtual Desktop Server Manager.
Aug 09 15:13:00 node14.***.lv vdsm[4130]: WARN MOM not available. Error: [Errno 111] Connection refused
Aug 09 15:13:00 node14.***.lv vdsm[4130]: WARN MOM not available, KSM stats will be missing. Error:


[root@node14]# firewall-cmd --list-all
public (active)
  target: default
  icmp-block-inversion: no
  interfaces: DMZ_node14 eno1 eno2 ovirtmgmt
  sources: 
  services: cockpit dhcpv6-client libvirt-tls mountd nfs ovirt-imageio ovirt-vmconsole rpc-bind snmp ssh vdsm
  ports: 2301/tcp 2381/tcp 22/tcp 6081/udp
  protocols: 
  forward: no
  masquerade: no
  forward-ports: 
  source-ports: 
  icmp-blocks: 
  rich rules: 
[root@node14 andrei]# 


vdsm-client Host getStats and vdsm-client Host getCapabilities attached.