On Thu, Oct 22, 2020 at 3:39 PM Gilboa Davara <gilboad@gmail.com> wrote:
Hello all,
Hi,
I just upgraded one of my test oVirt setups to latest.Post reboot, the machine lost network and hosted engine didn't start.When I connected to the machine, I noticed all the /etc/sysconfig/network-scripts/ifcfg-* files disappeared. No idea why / how. (Possibly I did something wrong and forgot about it.)
It would be nice to know when this happens as it might be a serious problem.
Long story story short, I copied the two missing files (ifcfg-onb0 ethernet device configuration and the ifcfg-ovirtmgmt bridge configuration) from another ovirt host, changed the ovirtmgmt IP address and UUID to match the UUID reported in logs as missing and restarted NetworkManager and restarted all the oVirt related services (vdsmd, supervdsmd, ovirt-*, etc).Sadly enough, even with both onb0 and ovirtmgmt up, vdsm still complains about the missing network (ovirtmgmt) and refuses to start the hosted engine.Reboot doesn't seem to change anything.
Unfortunately this won't work. From this it seems like vdsm persistence was broken somehow during the upgrade.
In the main log I see the following errors:Oct 22 16:33:31 office-wx-otest vdsm[2634]: WARN Attempting to remove a non existing network: ovirtmgmt/1da8c5b7-999c-4ada-8287-1f35de6ce21d
Oct 22 16:33:31 office-wx-otest vdsm[2634]: WARN Attempting to remove a non existing net user: ovirtmgmt/1da8c5b7-999c-4ada-8287-1f35de6ce21d
Oct 22 16:33:31 office-wx-otest vdsm[2634]: WARN Attempting to remove a non existing network: ovirtmgmt/1da8c5b7-999c-4ada-8287-1f35de6ce21d
Oct 22 16:33:31 office-wx-otest vdsm[2634]: WARN Attempting to remove a non existing net user: ovirtmgmt/1da8c5b7-999c-4ada-8287-1f35de6ce21dAs it is one of my oVirt test setup, I can simply redeploy the host and continue from there, but I rather use this experience to learn how to fix oVirt such issues in the future.
For start you can really ensure that the network is not saved in the vdsm configuration.
By using vdsm-tool on the host, if you run "vdsm-tool list-nets" it won't produce anything most likely.
To restore your previous configuration on the host you can use:
cat << EOF > ovirtmgmt.json
{
"networks": {
"ovirtmgmt": {
"netmask": "255.255.255.0",
"ipv6autoconf": false,
"nic": "onb0",
"bridged": true,
"ipaddr": "192.168.2.117",
"defaultRoute": true,
"dhcpv6": false,
"gateway": "192.168.2.100",
"mtu": 1500,
"switch": "legacy",
"stp": false,
"bootproto": "none",
"nameservers": [
"192.168.2.100",
"8.8.8.8"
]
}
},
"bondings": {},
"options": {
"connectivityCheck": false
}
}
{
"networks": {
"ovirtmgmt": {
"netmask": "255.255.255.0",
"ipv6autoconf": false,
"nic": "onb0",
"bridged": true,
"ipaddr": "192.168.2.117",
"defaultRoute": true,
"dhcpv6": false,
"gateway": "192.168.2.100",
"mtu": 1500,
"switch": "legacy",
"stp": false,
"bootproto": "none",
"nameservers": [
"192.168.2.100",
"8.8.8.8"
]
}
},
"bondings": {},
"options": {
"connectivityCheck": false
}
}
EOF
vdsm-client -f ovirtmgmt.json Host setupNetworks
If that works, you have to persist the configuration before reboot, so either from the engine UI
or from the host itself:
vdsm-client Host setSafeNetworkConfig
_______________________________________________Logs attached.$ PAGER= nmcli connection showNAME UUID TYPE DEVICE
ovirtmgmt 1da8c5b7-999c-4ada-8287-1f35de6ce21d bridge ovirtmgmt
onb0 48332db3-8939-bff3-6b71-772a28c9e7b8 ethernet onb0$ PAGER= nmcli device show
GENERAL.DEVICE: ovirtmgmt
GENERAL.TYPE: bridge
GENERAL.HWADDR: FC:AA:14:6B:A8:E0
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.CONNECTION: ovirtmgmt
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/2
IP4.ADDRESS[1]: 192.168.2.117/24
IP4.GATEWAY: 192.168.2.100
IP4.ROUTE[1]: dst = 192.168.2.0/24, nh = 0.0.0.0, mt = 425
IP4.ROUTE[2]: dst = 0.0.0.0/0, nh = 192.168.2.100, mt = 425
IP4.DNS[1]: 192.168.2.100
IP4.DNS[2]: 8.8.8.8
IP6.GATEWAY: --
GENERAL.DEVICE: onb0
GENERAL.TYPE: ethernet
GENERAL.HWADDR: FC:AA:14:6B:A8:E0
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.CONNECTION: onb0
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/3
WIRED-PROPERTIES.CARRIER: on
IP4.GATEWAY: --
GENERAL.DEVICE: ;vdsmdummy;
GENERAL.TYPE: bridge
GENERAL.HWADDR: 92:8B:9A:5E:C1:3E
GENERAL.MTU: 1500
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: --
GENERAL.CON-PATH: --
IP4.GATEWAY: --
IP6.GATEWAY: --
GENERAL.DEVICE: lo
GENERAL.TYPE: loopback
GENERAL.HWADDR: 00:00:00:00:00:00
GENERAL.MTU: 65536
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: --
GENERAL.CON-PATH: --
IP4.ADDRESS[1]: 127.0.0.1/8
IP4.GATEWAY: --
IP6.GATEWAY: --
GENERAL.DEVICE: br-int
GENERAL.TYPE: openvswitch
GENERAL.HWADDR: 8E:15:6A:F8:3C:45
GENERAL.MTU: 1500
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: --
GENERAL.CON-PATH: --
IP4.GATEWAY: --
IP6.GATEWAY: --
GENERAL.DEVICE: ovs-system
GENERAL.TYPE: openvswitch
GENERAL.HWADDR: E2:09:EA:A2:BD:70
GENERAL.MTU: 1500
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: --
GENERAL.CON-PATH: --
IP4.GATEWAY: --
IP6.GATEWAY:- Gilboa
Users mailing list -- users@ovirt.org
To unsubscribe send an email to users-leave@ovirt.org
Privacy Statement: https://www.ovirt.org/privacy-policy.html
oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/
List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/V5M23EHLZ5GSL2ANQVIDJLZR6CZWKIA6/
