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https://issues.apache.org/jira/browse/ARTEMIS-1803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16435434#comment-16435434
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ASF GitHub Bot commented on ARTEMIS-1803:
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Github user franz1981 commented on the issue:
https://github.com/apache/activemq-artemis/pull/2012
@cshannon ehehe I wish to have said "would" :) The problem with the
references is that the footprint of the reference depends on the JVM
configuration (`-XX:+UseCompressedOops` or not) and on the alignment with the
rest of the fields: the JVM tends to add padding in order to have each field
size-aligned.
> MessageReference should include sessionId
> -----------------------------------------
>
> Key: ARTEMIS-1803
> URL: https://issues.apache.org/jira/browse/ARTEMIS-1803
> Project: ActiveMQ Artemis
> Issue Type: Improvement
> Affects Versions: 2.5.0
> Reporter: Christopher L. Shannon
> Assignee: Christopher L. Shannon
> Priority: Minor
>
> Right now a MessageReference will track a consumerId (in certain scenarios)
> but the sessionId is not included. This is a problem because consumerIds are
> not unique and are duplicated across sessions. In order to find a unique
> consumer you need the sessionId and consumerId as well.
> A use case for when this is important is when writing custom plugins. Some
> of the callbacks pass a message reference and it would be good to be able to
> figure out which consumer the reference belonged to such as in the
> messageAcknowledged callback.
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