[AMQ-5322] Message is assigned to different client with the same JMSXGroupID

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 5.9.0, 5.9.1, 5.10.0
• Component/s: Broker
• Assignee: Matt Pavlovich
• Reporter: wesley lin
• Created: 14/Aug/14 07:47
• Updated: 03/Mar/21 20:20
• Resolved: 03/Mar/21 20:20

Description

I discovered since AMQ 5.9, message could be sent to different consumer even with JMSXGroupID is set.

Here is how to reproduce.
1. start 10 consumers to connect to server (consumer 1-10)
2. send 1025 messages with JMSXGroupID set from 0 - 1024
3. add other 10 consumers to connect to server (consumer 11-20)
4. send several messages with JMSXGroup set from 0 - 1024

Now, you can observe consumers added lately ( 11 - 20 ) will also receive messages even JMSXGroupID have been dispatched to first consumer group( 1 - 10).

note: In step2 , there should have more than 1024 different kind of JMSXGroupID to reproduce this bug.