Introduction

Limits the maximum number of messages a RabbitMQ queue can hold by creating a temporary max-length policy with the highest priority. When the attack ends, the policy is automatically removed and the queue reverts to its original configuration.

Use Cases

• Set a very low max length to force message drops and test how producers and consumers handle rejected or dead-lettered messages.
• Verify that consumers tune their prefetch correctly under constrained queue capacity.
• Simulate a resource-limited queue to validate dead-letter exchange routing behavior.

Parameters

Parameter	Description	Default
Duration	How long the max-length policy stays in effect. The policy is automatically removed when the duration expires, restoring the queue's original configuration.	60s
Max Length	Maximum number of messages the queue is allowed to hold. Messages beyond this limit are dropped or dead-lettered depending on queue configuration. Set to a low value to force backpressure.	1000