A change has been made to the Installation Guide for Trove recently ( http://docs.openstack.org/icehouse/install-guide/install/yum/content/trove-install.html (http://docs.openstack.org/icehouse/in...) ), which replaced rpc backend instructions from Qpid to RabbitMQ, stating that Qpid was Fedora specific:

https://review.openstack.org/#/c/97890/

However, there are users that say that they used Qpid for CentOS and had no problems:

https://bugs.launchpad.net/openstack-manuals/+bug/1327273 (https://bugs.launchpad.net/openstack-...)

What does manual should recommend? Qpid or RabbitMQ? My own research showed that Qpid might be better:

http://bhavin.directi.com/rabbitmq-vs-apache-activemq-vs-apache-qpid/ (http://bhavin.directi.com/rabbitmq-vs...)