[ARTEMIS-4506] Restore MQTT subscription queue name syntax

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.32.0
• Assignee: Justin Bertram
• Reporter: Justin Bertram
• Created: 15/Nov/23 23:02
• Updated: 24/Jan/24 18:36
• Resolved: 20/Jan/24 22:49

Description

Starting with 2.28.0, the broker doesn't translate the character / to the configured wildcard delimiter (i.e. . by default) when creating subscription queues for MQTT clients.

For example, in previous versions, a client configured with the following properties 

clientId: mqtt
topic: TEST/TOPIC

would consume message from a queue defined like this:

<addressname="TEST.TOPIC">
   <multicast>
      <queuename="mqtt.TEST.TOPIC"/>
   </multicast>
</address>

Now, in the affected versions, this will not work, the client will create (if it has permissions to create queues) or will expect (if it doesn't have permissions to create queues) a queue with the following format:

<addressname="TEST.TOPIC">
   <multicast>
      <queuename="mqtt.TEST/TOPIC"/>
   </multicast>
</address>

This is breaking clients applications when upgrading  the broker from versions before than 2.28.0.

Issue Links

• links to: GitHub Pull Request #4678