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https://issues.apache.org/jira/browse/AMQCPP-586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14984905#comment-14984905
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Mark Williams commented on AMQCPP-586:
--------------------------------------
Also see
http://activemq.2283324.n4.nabble.com/Messages-erroneously-rejected-as-duplicates-td4703433.html
> Messages erroneously rejected as duplicates.
> --------------------------------------------
>
> Key: AMQCPP-586
> URL: https://issues.apache.org/jira/browse/AMQCPP-586
> Project: ActiveMQ C++ Client
> Issue Type: Bug
> Affects Versions: 3.9.0
> Reporter: Mark Williams
> Assignee: Timothy Bish
>
> Messages erroneously rejected as duplicates.
> Using the failover transport, INDIVIDUAL_ACKNOWLEDGE mode and the redelivery
> plug-in if we repeatedly close and reopen the consumer without acknowledging
> the messages then, after a while, messages are marked as duplicates.
> Using the option "connection.checkForDuplicates=false" provides a workaround.
> The attached sample program illustrates the problem. You may need to run it
> with
> many 100 loops to see the problem, although sometimes it occurs quickly.
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