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https://issues.apache.org/jira/browse/AMQ-3106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timothy Bish closed AMQ-3106.
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Resolution: Not A Problem
> Failover with a durable consumer can lose Messages
> --------------------------------------------------
>
> Key: AMQ-3106
> URL: https://issues.apache.org/jira/browse/AMQ-3106
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.4.0, 5.4.1, 5.4.2
> Reporter: Timothy Bish
> Fix For: 5.x
>
> Attachments: FailoverDurableWithOutstandingAck.java
>
>
> When a client with a durable consumer loses its connection to the broker and
> reconnects using the failover transport it does not receive any Messages that
> it had not ack'd before it failed.
> Testing shows that older client's that don't recover their Consumers by
> sending a ConsumerInfo command with a zero prefecth followed by a
> ConsumerControl Command with the old prefetch value recover their
> unacknowledged messages.
> Test case attached
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