Comment 2 for bug 1148017

Eventlet logs this error when we try to connect new socket inside of the eventlet thread.
(see http://blog.eventlet.net/2010/03/18/safety/)

This line uses quantum client.
https://github.com/openstack/quantum/blob/master/quantum/agent/metadata/agent.py#L109

The solution looks we should use rpc call here.