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https://issues.apache.org/activemq/browse/AMQ-2691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=58725#action_58725
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Gary Tully commented on AMQ-2691:
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Note: also change the use/effect of network connector dynamicOnly - this flag
had little effect but is now re-commissioned to indicate whether durable subs
should be auto bridged (default) or whether they should be dynamic only. There
is no change to the default behavior.
> Durable Subscriptions have messages replayed (duplicate messages) after
> network broker restart
> ----------------------------------------------------------------------------------------------
>
> Key: AMQ-2691
> URL: https://issues.apache.org/activemq/browse/AMQ-2691
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.3.0, 5.3.1
> Reporter: Gary Tully
> Assignee: Gary Tully
> Fix For: 5.4.0
>
>
> Durable subs in a network of brokers can experience duplicate deliveries when
> a broker restarts.
> The problem lies in duplicate suppression and missing durable acks. Give two
> brokers, each networked together and with a durable consumer on each. A
> message produced to One gets delivered locally and forwarded to the other
> broker where it gets delivered. The redelivery back to the originator is
> suppressed by a filter that sees the broker path bread crumb. However this
> suppressed message is not acked so the broker on restart sees an outstanding
> durable message for the networked broker and recovers the topic subscription,
> delivering duplicates.
> differences in the store implementation, a store per durable sub or a shared
> sub store mean the issue surfaces differently.
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