Hi sparky.. is the calculation cheap to do? You might want to keep track of the sum at the broker. and when a new client connects the server can just send it the sum. We do something similar with advisory messages.
If not, they you can always use retroactive consumers and a properly configured redelivery policy. See: http://activemq.com/site/subscription-recovery-policy.html http://activemq.com/site/retroactive-consumer.html Regards, Hiram On 8/7/06, sparky2708 <[EMAIL PROTECTED]> wrote:
Hi, I was wondering if there was some way to store messages on the ActiveMQ server. Let me clarify. Suppose you were keeping track of a sum of numbers and each number arrived in a message. Here is how it would work: 1. Some producer would constantly publish the numbers throughout the day 2. A number of consumers that are listening to the producer in #1 keep summing up the numbers. If some consumer goes down or one comes up it needs to be able to get the current sum since the beginning of the day (let's say, since 12:00:01am) so it needs to be able to replay all the messages since the beginning of the day to catch-up. Any ideas on how this could be accomplished using ActiveMQ? -- View this message in context: http://www.nabble.com/Leaving-Messages-in-a-Topic.-Any-ideas--tf2069895.html#a5698477 Sent from the ActiveMQ - User forum at Nabble.com.
-- Regards, Hiram Blog: http://hiramchirino.com
