Introduction

Publishes messages to a RabbitMQ exchange at a constant rate (messages per second) for the attack duration.

Delivery is determined by the exchange type and its bindings: a fanout exchange copies each message to every bound queue, while direct and topic exchanges route by the routing key. Messages that no queue receives count as failures against the required success rate.

For publishing a fixed total number of messages, use Publish to Exchange (# of Messages) instead. To fill one specific queue directly, use the queue-targeted Publish (Messages / s).

Use Cases

• Apply sustained load through an exchange and verify all bound consumers keep up.
• Combine with fault injection (e.g. node restarts) and verify the publish success rate through the exchange stays at 100%.
• Verify topic routing under continuous traffic by watching which bound queues accumulate backlog.

Parameters