Section 4.4.10 of the JMS spec [1] is worth a look: "JMS clients need to understand when they can depend on message order and when they cannot."
I suggest you put full logging on in the broker and share with us the 10 seconds around your first out-of-order message. I presume you are producing all the messages on a single session. [1] http://download.oracle.com/otndocs/jcp/7195-jms-1.1-fr-spec-oth-JSpec/ ----- Michael Hayes B.Sc. (NUI), M.Sc. (DCU), SCSA SCNA -- View this message in context: http://activemq.2283324.n4.nabble.com/Queue-message-ordering-problem-tp4560603p4561262.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
