Ok

After installed the host, i need to attach it the networks

so I got the Unexpected Exception while I'm trying to add a vlan 1 (called default) to a Host, in the Setup_networks gui.

I attached:

- a screenshoot of all the network we have

- two screenshoots for the "default" network proprierties (one for vnic profile, other for the proprierties)

- supervdsm.log from host ovc2n06 (i attached all the file, but you will find all at the beginning)

Like already explained, it is simple to replicate the problem with a CentOS v7.3 host, you need to create a Bridge called default (ifcfg-default) and a Vlan 1 attached to it (ifcfg-enp12s0.1), do a systemctl restart network and you will get the error.
To fix the problem rename the bridge to "def" for example and change the Vlan 1 file configuration to link the new name and then all works.

This problem is found only on the CentOS v7.3 on old CentOS v7.2 hosts the "default" bridge works, to override this problem we changed the name to "def" for now.

All the hosts now are ovirt v4.1.5 and CentOS v7.3 we have also some old hosts on CentOS v7.2

Claudio

On 07/09/17 13:46, Dan Kenigsberg wrote:

I do not understand which steps you are doing until you get the
"Unexpected Exception" dialog.
Could you detail them?

Also, can you share supervdsm.log from the relevant host, so we can
understand the nature of that unexpected exception?

On Wed, Aug 30, 2017 at 12:31 PM, Claudio Soprano
<Claudio.Soprano@lnf.infn.it> wrote:

The problem is not the host-deploy, infact the deploy finished without
errors, if i remember good in the deploy process the network are not set, i
need to attach each network i need manually, under hosts, network interface,
setup host networks

and the problem is there, when i attach all the VLANs (including the
default, that is VLAN 1) it gave error, default is not present in the
system, if i add all the VLANS (excluding the default, that is VLAN 1) it is
OK, but the host will not activate because missing the default vlan.

If i manually add the 2 configuration files (ifcfg-default and ifcfg-intX.1)
to the host and make a systemctl network restart, it gave error then

ip addr reports

the vlan 1 is added, but not the Bridge to default (the default is missing
error).

I don't know if the name "default" (for the network, VLAN 1) could be the
problem, but i can't rename now, because i need to detach from the hosts,
but actually i can't.

I added 3 screenshoots to show you the situation, before adding VLAN 1
("default" network), the error when adding it, and the info on the error.

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