Comment 4 for bug 1598860

I should be clearer, I think this is where we call with a really old version of live-migrate that no longer works, because nova-conductor thinks no min_service version is 0, so uses a version of RPC that is too old for the current version of Nova.

When nova-compute starts up layer, we should now have an up to date min_version, but looks like we cached the older one somewhere.

Although looking at the code, it doesn't seem like this should be possible. Need some more digging.