Details
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Bug
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Status: Closed
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Major
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Resolution: Not A Problem
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5.9.0, 5.9.1, 5.10.0
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None
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None
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.