[NIFI-7894] ConsumeMQTT - allow EL on Client ID property with shared subscription

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.13.0
• Component/s: Extensions
• Assignee: Pierre Villard
• Reporter: Pierre Villard
• Created: 07/Oct/20 13:17
• Updated: 22/Jan/21 06:04
• Resolved: 06/Jan/21 15:49

Description

When subscribing to a shared connection (using the Group ID), then the client ID property must be empty and a random UUID will be generated for the client ID. Instead it should be possible for a user to use expression language for the client ID so that the user can control the name of the client. In case the EL expression does not generate different IDs for the clients, then the same message would be consumed by all the nodes in a NiFi cluster.

Issue Links

• fixes: NIFI-8164 ConsumeMQTT validation bug
• links to: GitHub Pull Request #4586