It can certainly happen that two VMs get the same VNC port if you have
really old VMs running. The ports are recycled and is calculated this
way:
base_port + ( oid % (limit - base_port) )
* base_port is got from the config file, 5900 by default
* oid is the VM id
* limit is 65535
You may get
We are commissioning a new OpenNebula 4.8 head node and so
far we are seeing very good scalability. But
in tests where we are launching a lot of virtual machines at once
we sometimes see the error:
Tue Oct 7 08:46:43 2014 [Z0][VMM][I]: error: Failed to create domain from
