Engine depends on provider-specific host_id in order to update external network providers about the new position of a VM. This is required for Bug #1549030.
To verify, run `vdsm-client Host getCapabilities` and look for openstack_binding_host_ids. An OVN host should report one value there; an OpenStack host should report another value; a host without external networks should report none. No functional change should occur.
"openstack_binding_host_ids": { "OVIRT_PROVIDER_OVN": "3694b97d-61f9-4d8f-82c4-82e75973e008" For OVN host "openstack_binding_host_ids": { "OPEN_VSWITCH": "rhv-1.localdomain", For OpenStack host Verified on vdsm-4.20.22-1.el7ev.x86_64
This bugzilla is included in oVirt 4.2.2 release, published on March 28th 2018. Since the problem described in this bug report should be resolved in oVirt 4.2.2 release, it has been closed with a resolution of CURRENT RELEASE. If the solution does not work for you, please open a new bug report.