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https://issues.apache.org/jira/browse/QPID-2482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12856030#action_12856030
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Rob Godfrey commented on QPID-2482:
-----------------------------------
Emmanuel - can you give the explicit steps you used to reproduce this behaviour
in the Java Broker...
Looking at the code for the TopicExchange it should already eliminate duplicate
queues (the queues are collated in a Set)
> Topic Exchange can duplicate messages.
> --------------------------------------
>
> Key: QPID-2482
> URL: https://issues.apache.org/jira/browse/QPID-2482
> Project: Qpid
> Issue Type: Bug
> Components: C++ Broker
> Environment: Linux
> Reporter: Ken Giusti
> Assignee: Ken Giusti
>
> As per Gordon's description:
> If a given queue is bound to a topic exchange with multiple bindings, a
> message sent to that exchange will result in a copy being enqueued for each
> binding that matches. This is incorrect - each message should be enqueued
> once if there is any binding to the queue that matches it.
> Steps to Reproduce:
> 1. create queue
> 2. bind it to amq.topic with two distinct bindings (e.g. red.* and *.herring)
> 3. send amq.topic a message whose routing key matches both patterns (e.g.
> "red.herring")
> 4. check the queue
> Actual results:
> The message is enqueued on the queue twice.
> Expected results:
> The message should only be enqueued on the queue once.
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