[jboss-jira] [JBoss JIRA] Closed: (JBMESSAGING-1643) Ordering Group incorrect handling on Consumer close

[Howard Gao (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBMESSAGING-1643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Howard Gao closed JBMESSAGING-1643.
-----------------------------------

    Resolution: Done


> Ordering Group incorrect handling on Consumer close
> ---------------------------------------------------
>
>                 Key: JBMESSAGING-1643
>                 URL: https://jira.jboss.org/jira/browse/JBMESSAGING-1643
>             Project: JBoss Messaging
>          Issue Type: Bug
>          Components: Messaging Core
>    Affects Versions: 1.4.0.SP3.CP08, 1.4.4.GA
>         Environment: all platform
>            Reporter: Howard Gao
>            Assignee: Howard Gao
>             Fix For: 1.4.0.SP3.CP09, 1.4.5.GA
>
>
> On session close, all unacknowledged messages will be cancelled. For ordering group messages, if messages are cancelled, it will be redelivered first.
> But currently if the message is cancelled, the message is released from the ordering group control, making the second message being delivered. That's broken.
> The reason for the wrong order of delivery:
> 1. msg A is delivered and commited. then B is delivered to client.
> 2. consumer close() cause B cancelled back to queue. But it is wrongly removed from the linked list.
> 3. On next deliver, B cannot be delivered because it is not the first in the ordering group (B still an ordering group message). So C is delivered to client.
> 4. After C is committed, D is delivered to the client and committed.
> 5. then B is delivered as the whole ordering group is empty now.

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