Failover and Non Transactional Sessions
39.2.1.4. Handling Failover With Non Transactional Sessions If the session is non transactional, messages or acknowledgements can be lost in the event of failover. If you wish to provide once and only once delivery guarantees for non transacted sessions too, enabled duplicate detection, and catch unblock exceptions as described in Section 39.2.1.2, “Handling Blocking Calls During Failover�