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https://issues.apache.org/jira/browse/AMQ-5290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14088504#comment-14088504
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Christian Posta commented on AMQ-5290:
--------------------------------------

Actually, it ended being okay (at least what I saw). Test committed:

https://github.com/apache/activemq/blob/trunk/activemq-unit-tests/src/test/java/org/apache/activemq/MQTTNetworkOfBrokersFailoverTest.java

> MQTT clients using durable subscriptions on networked brokers received 
> duplicates
> ---------------------------------------------------------------------------------
>
>                 Key: AMQ-5290
>                 URL: https://issues.apache.org/jira/browse/AMQ-5290
>             Project: ActiveMQ
>          Issue Type: Improvement
>          Components: MQTT
>    Affects Versions: 5.10.0
>            Reporter: Timothy Bish
>             Fix For: 5.11.0
>
>
> MQTT clients that create durable subscriptions and that operate in a network 
> of Brokers can receive duplicate messages when they start failing back and 
> forth between brokers in the network.
> We should investigate using Virtual Destinations under the covers instead of 
> durable topics subscriptions as this is a known problem with the durable 
> topic case.  With Virtual Destinations the client would be subscribed to a 
> Queue that would receive all messages sent to the target Topic.  



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