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Posted to dev@qpid.apache.org by "Robbie Gemmell (JIRA)" <ji...@apache.org> on 2013/06/05 16:34:20 UTC
[jira] [Commented] (QPID-4908) [Java Broker] Expose queue
attributes MessageGroupKey and MessageGroupSharedGroups via queue MBean
[ https://issues.apache.org/jira/browse/QPID-4908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13675968#comment-13675968 ]
Robbie Gemmell commented on QPID-4908:
--------------------------------------
{code}
+ @MBeanAttribute(name="MessageGroupSharedGroups", description="Indicates C++ compatibility mode, the Broker enforces a looser guarantee, nameley that all the currently unacknowledged messages in a group will be sent to the same consumer. This means that only one consumer can be processing messages from a particular group at a given time. When the consumer acknowledges all of its acquired messages, then the broker may pass the next pending message from that group to a different consumer")
+ boolean isMessageGroupSharedGroups();
{code}
The attribute description for shared groups seems rather verbose. Anyone using it should be reading the documentation for grouping to understand it fully, so this just needs to be a small pointer. What about something simpler like "If set indicates that while two messages of the same group cannot be processed by different consumers concurrently, no guarantee is made that subsequent messages are always sent to the same consumer"?
> [Java Broker] Expose queue attributes MessageGroupKey and MessageGroupSharedGroups via queue MBean
> --------------------------------------------------------------------------------------------------
>
> Key: QPID-4908
> URL: https://issues.apache.org/jira/browse/QPID-4908
> Project: Qpid
> Issue Type: Improvement
> Components: Java Broker
> Affects Versions: 0.18, 0.20, 0.22
> Reporter: Alex Rudyy
> Assignee: Robbie Gemmell
> Fix For: 0.23
>
>
> Expose queue attributes MessageGroupKey and MessageGroupSharedGroups via queue MBean
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