FAQ: How to delete all messages from a Queue

There are different options of how to purge a queue in RabbitMQ. The web based UI can be used via the RabbitMQ Management Interface, or a script can be used via rabbitmqadmin or HTTP API curl.

Delete messages via:

• RabbitMQ Management Interface
• rabbitmqadmin
• Policy
• HTTP API curl

RabbitMQ Management Interface

A queue can be purged from the RabbitMQ Management Interface. Click the Queue tab and go to the bottom of the page. You will find a dropdown "Delete / Purge" there. Press Purge to the right to empty the queue.

rabbitmqadmin

The management plugin ships with a command line tool rabbitmqadmin which can perform the same actions as the web-based UI (the RabbitMQ management interface).

Rabbitmqadmin config example, ensure all text is contained in quote marks as shown:

[default]
hostname = "CLUSTER_URL"
port = 443
username = "USERNAME"
password = "PASSWORD"
vhost = "VHOST"

The command used to purge all messages in a single queue is:

$ rabbitmqadmin purge queue name=name_of_queue

The example below shows how the command is used for a CloudAMQP instance.

$ rabbitmqadmin --use-tls --tls-ca-cert-file=$CERTIFICATE_LOCATION --config=$CONFIG_LOCATION purge queue name=name_of_queue

Policy

Add a policy that matches the queue names with an max-length rule. A policy can be added by entering the Management Interface and then pressing the admin tab.

Don't forget to delete the policy after it has been applied.

HTTP API, curl

The Rabbitmq Management plugin provides an HTTP-based API for management and monitoring of your RabbitMQ server. In CloudAMQP the management plugin is assigned port 443 and SSL has to be used.

Please email us at contact@cloudamqp.com if you have any suggestions, questions or feedback.