To retrieve volume samples, you must configure the Block Storage service to send notifications to the bus.
Run the following commands on the controller and volume nodes:
# openstack-config --set /etc/cinder/cinder.conf DEFAULT control_exchange cinder # openstack-config --set /etc/cinder/cinder.conf DEFAULT notification_driver cinder.openstack.common.notifier.rpc_notifier
Restart the Block Storage services with their new settings.
On the controller node:
# service openstack-cinder-api restart # service openstack-cinder-scheduler restart
On the volume node:
# service openstack-cinder-volume restart
