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From mickhayes <>
Subject Re: ActiveMQ one message received several times
Date Fri, 08 Jun 2012 07:46:57 GMT
The JMS 1.1 spec is worth a look here.

Sections 4.4.12 "Duplicate Delivery of Messages"
and 4.4.13 "Duplicate Production of Messages" cover the issue.

Note the comment on client usage of AUTO_ACKNOWLEDGE - such clients must
accept redelivery, but the client can see a redelivery in this case
indicated in the JMSRedelivered field.

Note also that "A message that is redelivered due to session recovery is not
considered a
duplicate message."

Michael Hayes B.Sc. (NUI), M.Sc. (DCU), SCSA SCNA 

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