Gary Tully created AMQ-7298:
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             Summary: failover duplicate detection in error with batched local 
transactions
                 Key: AMQ-7298
                 URL: https://issues.apache.org/jira/browse/AMQ-7298
             Project: ActiveMQ
          Issue Type: Bug
          Components: JMS client
    Affects Versions: 5.15.0
            Reporter: Gary Tully
            Assignee: Gary Tully
             Fix For: 5.16.0


Messages can get poisonAcked in error as duplicate deliveries when a local 
transaction rollback during/after a failover (auto reconnect) event.
The interaction between rollback and failover redelivery has a bunch of timing 
issues and did create duplicates in-error that resulted in over eager 
suppression.
There are a bunch of related tests that validate expected behaviour, the 
related fixes needed to be revisited to better manage the delivered and 
unconsumed messages in the context of a local transaction and to avoid the real 
duplication of delivery in the client.
There is an additional new test that demonstrates the additional dlq or 
duplicates behaviour.

a nice cross section from the unit test suite is:
mvn clean install 
-Dtest=CloseRollbackRedeliveryQueueTest,AMQ2149Test,JMSQueueRedeliverTest,RedeliveryPolicyTest,FailoverTransactionTest,FailoverDurableSubTransactionTest,JMSConsumerTest,JmsSessionRecoverTest,AMQ2751Test



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