Howdy We are currently experiencing a bit of a problem with one of our applications which relates to messages being retrieved from the queue not in order / sequence.
The basic idea is as follows We create 3 sets of messages Each message is tagged to a unique group Each message is tagged with a sequence number of 1 - 3 Each message is sent to the queue separately Now when we view the queue the messages are lined up in order ( ie Group A = 1 , 2 , 3 ) When we retrieve the messages though there is a very high chance that the messages dont come off the queue in the order they were put on there. If we have to sets of 3 messages ( from group A / B ) they tend to come across along the lines of A1 , B1 , A3 , B3 , A2 , B2. Now sometimes they shuffle around sometimes they come of the queue properly ( mostly only when 1 set of messages is active any more then that and the order breaks ) The way we retrieve the messages is also very simple, we simply poll the queue and grab each message one by one. I did some reading and there were a few bugs reported back in version 4.0.x that mentioned these problems. I tried this exercise with versions 4.0.1 and 4.1.1 and neither seem to work correctly. Is there a work around to this problem or maybe I am just doing something very silly that is causing this. Anyway if someone could let me know that would be most beneficial. Thanks ! -- View this message in context: http://www.nabble.com/Retrieving-Messages-Out-of-Sequence-tf4470245s2354.html#a12745847 Sent from the ActiveMQ - User mailing list archive at Nabble.com.
