Hi, I've an Havana IaaS composed by: 1 controller node 1 network node 1 compute node and using Neutron as networking, and rabbitmq as AMQP. The network node runs the agents (dhcp, l3, openvswitch, metadata). The controller runs Keystone, glance, Nova APIs, Neutron server. The compute node runs Nova Compute. I've followed this guide: http://docs.openstack.org/openstack-ops/content/upgrades_havana-icehouse-rhel.html to perform a migration from Havana to IceHouse. After migration (without any apparent error) I get a lot of errors for the several services related to the AMQP. For example in the neutron server's log I see: http://pastebin.com/2pSpP4mu In the nova api's log I see: http://pastebin.com/uCzyhxb6 and a similar one for Nova conductor: http://pastebin.com/3B0jvT6i Did I miss something ? I didn't see anything directly related to AMQP in the guide cited abobe. thanks, Alvise -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-operators/attachments/20150121/17b4e079/attachment.html>