[ovirt-users] Daily reboots of Hosted Engine?

Hi! Hosted engine reboots itself almost daily. Is this by design? If not, where should I be searching for the clues why it shuts down? Someone is giving reboot order to HE because /var/log/messages in contains this: Mar 19 12:05:00 ovirtmgr qemu-ga: info: guest-shutdown called, mode: powerdown Mar 19 12:05:00 ovirtmgr systemd: Started Delayed Shutdown Service. And I'm still running v4.3.0 because upgrade to that was bit painful and haven't dared to new round. Thanks, -Juhani