rabbitmq versioned_notifications.info queue grows with no consumer in Red Hat OpenStack Platform

Issue

When instances spawn in a new installation of Red Hat OpenStack Platform one can observe that the compute nodes send messages to notifications.info and versioned_notifications.info queue, but there is no consumer for versioned_notifications.info and the queue grows:

2017-08-03 13:24:31.179 17539 DEBUG oslo_messaging._drivers.amqpdriver [req-228730b4-8c81-4bb8-bbae-1a19803f40b1 64a619d8582c41e4881c44d2c3949cfe 7d90d27a4db541638e370df4a795685c - - -] CAST unique_id: d12f778351f24ca6928cc875207eb321 NOTIFY exchange 'nova' topic 'notifications.info' _send /usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py:473
2017-08-03 13:24:31.190 17539 DEBUG oslo_messaging._drivers.amqpdriver [req-228730b4-8c81-4bb8-bbae-1a19803f40b1 64a619d8582c41e4881c44d2c3949cfe 7d90d27a4db541638e370df4a795685c - - -] CAST unique_id: bc352c35adbc494296d0e4122367f32b NOTIFY exchange 'nova' topic 'versioned_notifications.info' _send /usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py:473

# rabbitmqctl list_queues name consumers messages| egrep -v "[[:space:]]0$"
Listing queues ...
versioned_notifications.info    0   133

Another symptom for this issue would be when running nova commands such as creating new flavors. The commands would either take up to a minute to complete or would reach a timeout.