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
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