Hi,

Check if ovirt-guest-agent is installed on the VM.
If not, some statistics can be missing, like free memory on the VM.

If you are using version 4.3, the MOM issue will be fixed by:
https://bugzilla.redhat.com/show_bug.cgi?id=1676695


Best regards,
Andrej

On Wed, 20 Feb 2019 at 09:25, <v.voroncov@scanru.ru> wrote:
So the problem is that virtual machine statistics are not shown in Ovirt Virualization Manager and something is wrong with MOM service.

[root@ovirt-04 ~]# 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: enabled)
   Active: active (running) since Tue 2019-02-19 17:13:31 MSK; 16h ago
 Main PID: 17676 (vdsmd)
    Tasks: 63
   CGroup: /system.slice/vdsmd.service
           ├─17676 /usr/bin/python2 /usr/share/vdsm/vdsmd
           ├─26249 /usr/libexec/ioprocess --read-pipe-fd 77 --write-pipe-fd 76 --max-threads 10 --max-queued-requests 10
           └─26269 /usr/libexec/ioprocess --read-pipe-fd 82 --write-pipe-fd 81 --max-threads 10 --max-queued-requests 10

Feb 20 09:11:14 ovirt-04.scanru.local vdsm[17676]: WARN MOM not available.
Feb 20 09:11:14 ovirt-04.scanru.local vdsm[17676]: WARN MOM not available, KSM stats will be missing.
Feb 20 09:23:47 ovirt-04.scanru.local vdsm[17676]: WARN MOM not available.
Feb 20 09:23:47 ovirt-04.scanru.local vdsm[17676]: WARN MOM not available, KSM stats will be missing.
Feb 20 09:36:20 ovirt-04.scanru.local vdsm[17676]: WARN MOM not available.
Feb 20 09:36:20 ovirt-04.scanru.local vdsm[17676]: WARN MOM not available, KSM stats will be missing.
Feb 20 09:48:53 ovirt-04.scanru.local vdsm[17676]: WARN MOM not available.
Feb 20 09:48:53 ovirt-04.scanru.local vdsm[17676]: WARN MOM not available, KSM stats will be missing.
Feb 20 10:01:25 ovirt-04.scanru.local vdsm[17676]: WARN MOM not available.
Feb 20 10:01:25 ovirt-04.scanru.local vdsm[17676]: WARN MOM not available, KSM stats will be missing.
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