Created attachment 1432725 [details]
Description of problem:
We have a box with OVH. The box has two network adapters installed, however, one is for their vRack service. oVirt, by default, chooses the vRack Ethernet adapter during host install. When I try to reassign the Logical Network ovritmgmt to the active interface I get the error:
Cannot setup Networks. The following Networks' definitions on the Network Interfaces are different than those on the Logical Networks. Please synchronize the Network Interfaces before editing the networks: ovirtmgmt.
I have repeatedly tried "Sync All Networks." But the above error always appears. I have not found any documentation or discussion on this error.
Version-Release number of selected component (if applicable):
Always. I've reinstalled the OS four times.
Steps to Reproduce:
1. Rent a server from OVH that has vRack.
2. Install CentOS 7.
3. Install oVirt 4.2.
4. Try to do single host install.
5. Network errors out.
Always errors with the error above when trying to reassign ovirtmgmt Logical Network.
That I can reassign the Logical Network.
Also, to note, there is no IP associated with the vRack interface since we do not use it.
Not sure if it may help, but I found this one.
re-assigning the bug to network team engineers.
(In reply to Sandro Bonazzola from comment #2)
> Not sure if it may help, but I found this one.
> re-assigning the bug to network team engineers.
(In reply to Max from comment #0)
> Steps to Reproduce:
> 1. Rent a server from OVH that has vRack.
> 2. Install CentOS 7.
> 3. Install oVirt 4.2.
> 4. Try to do single host install.
Does this mean the whole scenario is executed on a single server, which is added as a host with the IP address 127.0.0.1?
The information which attribute is not in sync is provided in the "Setup Host Networks" dialog in a tooltip if the mouse pointer hovers the interface, e.g. like in
Can you share a similar screenshot?
Created attachment 1433108 [details]
Dialog showing ovirtmgmt with no IP.
Yes, the whole scenario is I'm installing oVirt on a single server. Then I added localhost as a host.
The problem appears to be due to the fact that the vRack interface has no IP. But oVirt still chooses it for the ovirtmgmt interface anyway.
(In reply to Max from comment #5)
> Created attachment 1433108 [details]
> ovirtmgmt dialog
> Dialog showing ovirtmgmt with no IP.
This dialog shows that the property "Default route" is not synced.
I guess the role "Default Route" should be assigned to the Logical Network "public" in your scenario.
The role can be assigned in
In Administration Portal > Compute > Clusters > CLUSTERNAME_OF_THE_HOST (e.g. Default or OVH) > Logical Networks > Manage Networks.
Does this solve the issue?
(In reply to Max from comment #6)
> Yes, the whole scenario is I'm installing oVirt on a single server. Then I
> added localhost as a host.
> The problem appears to be due to the fact that the vRack interface has no
> IP. But oVirt still chooses it for the ovirtmgmt interface anyway.
The interface is chosen according to the IP address used to add the host.
If you want eno1 for ovirtmgmt, use the IP address of eno1 or hostname mapped to eno1's IP address.
Ok. I'm going to reinstall the OS and try adding the host via the public facing IP.
But I still do think of it as a bug that in the localhsot setup it chooses a unused interface that has no IP.
Well, I fixed it on my install, as my last comment states, by reinstalling the OS and resetting up oVirt using the public IP rather than loopback. However, when the problem was occurring it did not allow me to manage the interface "ovirtmgmt" at all. As all the logs stated that it couldn't communicate with the host basically.
It is unfortunate, but we cannot change the IP address of the management network. The only sane resolution of this condition is, as you have found, it to redeploy the host.