[ARTEMIS-4249] Failure to create internal MQTT consumer can orphan subscription queue

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.29.0
• Assignee: Justin Bertram
• Reporter: Justin Bertram
• Created: 21/Apr/23 16:27
• Updated: 12/Jul/23 19:20
• Resolved: 21/Apr/23 20:46

Description

When an MQTT client subscribes to a topic the broker internally creates a subscription queue on the corresponding address and then creates a consumer on that queue to receive the messages and relay them back to the MQTT client. If, for some reason, adding the consumer to the queue fails then the subscription queue will be orphaned. It will then accumulate messages and consume broker resources.

Issue Links

• is duplicated by: ARTEMIS-4361 MQTT subscription that fails auth leaves behind address and queue
• links to: GitHub Pull Request #4444