I'm not sure if this was because i did something wrong, or its a bug... but in case you run into it... On upgrade from icehouse to juno (ubuntu 14.04->14.10), i ran into an issue w/ DHCP where I got an error out like: agent['heartbeat_timestamp'] TypeError: 'NoneType' object has no attribute '__getitem__' from File "/usr/lib/python2.7/dist-packages/neutron/db/agentschedulers_db.py", line 82, in is_eligible_agent the issue was I had a 'stale' agent in the table networkdhcpagentbindings. I did a delete from networkdhcpagentbindings; and it came back. This was mentioned in havan timeframe ( http://lists.openstack.org/pipermail/openstack/2013-October/002195.html) so maybe its not me. Hope this helps someone. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20141019/af48bba1/attachment.html>