Anwar, Rabbit is a separate service outside of Openstack. Make sure it is running as well [root at controller01 ~]# systemctl | grep rabbitmq rabbitmq-server.service loaded active running RabbitMQ broker -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-operators/attachments/20150709/3c7012bd/attachment.html>