Since version 2.0 event messages can be sent on an RabbitMQ queue.
Install rabbitmq server from the package manager of your distribution.
on debian, install rabbitmq-server
The snooze node config file (snooze_node.cfg) contains a section dealing with the configuration of the rabbitmq
external.notifier.transport = RABBITMQ
external.notifier.address = localhost
external.notifier.port = 5672
external.notifier.username = snooze
external.notifier.password = snooze
external.notifier.vhost = snooze-vhost
external.notifier.faultTolerance.numberOfRetries = 10
external.notifier.faultTolerance.retryInterval = 10
Setup user and vhost accordingly to the snooze_node.cfg parameters :
rabbitmqctl add_user snooze snooze
rabbitmqctl add_vhost snooze-vhost
rabbitmqctl set_permissions -p snooze-vhost snooze ".*" ".*" ".*"