[jira] [Commented] (AMQ-5322) Message is assigned to different client with the same JMSXGroupID

["Shaun Guth (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMQ-5322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14568207#comment-14568207 ] 

Shaun Guth commented on AMQ-5322:
---------------------------------

Still reproducible on 5.11.1

> Message is assigned to different client with the same JMSXGroupID
> -----------------------------------------------------------------
>
>                 Key: AMQ-5322
>                 URL: https://issues.apache.org/jira/browse/AMQ-5322
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.9.0, 5.9.1, 5.10.0
>            Reporter: wesley lin
>         Attachments: AMQ5322Test.java, Consumer.java, GroupIdTest.java, Producer.java, TestGroups.java
>
>
> 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.



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