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https://issues.apache.org/jira/browse/AMQ-3576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gary Tully resolved AMQ-3576.
-----------------------------
Resolution: Fixed
Assignee: Gary Tully
resolution in http://svn.apache.org/viewvc?view=rev&rev=1196804
> ProducerBrokerExchange last producer sequenceId initialization needs runtime
> updates to deal with possible duplicate resends
> ----------------------------------------------------------------------------------------------------------------------------
>
> Key: AMQ-3576
> URL: https://issues.apache.org/jira/browse/AMQ-3576
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.5.1
> Environment:
> failover:(tcp://host:port?soWriteTimeout=500)?jms.useAsyncSend=true&trackMessages=true
> Reporter: Gary Tully
> Assignee: Gary Tully
> Fix For: 5.6.0
>
>
> Under load, a buffered pending send can be replayed along with a failover
> replay (writeTimeFilter initiated) which can miss the audit b/c it won't have
> knowledge of the original send.
> The dispatch decision is based on the current stored state at the time of
> reconnect with the expectation that the next message will not be duplicated.
> It seems under some load and tcp buffering conditions this is possible to get
> duplicate sends of new messages.
>
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