I'm in 4.0.3 and it seems that the gerrit above was not inside.
So I applied and restarted vdsmd.
Now I have Oct 07 19:54:10 ovirt01.lutwyn.org vdsm[11306]: vdsm vds.dispatcher ERROR SSL error receiving from <yajsonrpc.betterAsyncore.Dispatcher connected 192.168.1.211:36296 at 0x359c5f0>: unexpected eof
In my case single host environment with Self Hosted Engine