Only happens on the compute nodes running the previous version of nova, after upgrade instances could be spawned as usual.
As suggested by James on IRC: 11:53 < jamespage> tobasco, I suspect some sort of break on the RPC compat looking at the stacktrace but I might be wrong Upgrade: nova-compute-libvirt:amd64 (12.0.4-0ubuntu1~cloud1, 12.0.5-0ubuntu1~cloud0) Upgrade was done from 12.0.4 to 12.0.5 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1644187 Title: ValueError on creating new nova instance To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1644187/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs