Agreed. We've also got the fanout transport (hopefully being souped up into the Jedi transport some day - John? :), which will allow a JMS client to in parallel send a message to multiple brokers which can help reduce latency and provides an alternative with topics to using broker store & forward networks.
On 1/9/07, Abdul Alhazred <[EMAIL PROTECTED]> wrote:
No, with clustering you don't have to do anything special at the client. Basically the brokers will forward messages as necessary to reach whichever consumers need to get them. So if Producer A is on broker 1 and sends a message destined for Consumer B connected on broker 2, the message will go from A to 1 to 2 to B. That being said the topology of your network is going to determine the amount of work going on. If every message has to go to consumers at all 3 brokers, then your brokers will pretty much be doing equal amounts of work, all of them will have to receive each message once and deliver it again at least one time. So it is possible such a network of brokers might not perform much differently than 1 broker alone. OTOH some actions are expensive, like persisting messages or using synchronous delivery. Broker-broker communications can generally use the most efficient mechanisms, so again it depends on exactly who uses what how. Benchmark. Nothing but a real test of a system is a solid answer to performance questions. Run tests with one and with 3 and see what happens. shital wrote: > > Hi !!! > > I have an extremely high volume of messages. Several thousands of messages > per second. It does not care for message drops, and we use async dispatch > to get maximum performance. Now my confusion is that if I use 3 brokers to > make a network, and use failover protocol, will the producer have to worry > about making sure that messages are transferred to all 3 brokers in the > cluster? Also since such a high volume of messages is transferred across 3 > brokers, would it slow down the whole consumer/producer chain ?? > -- View this message in context: http://www.nabble.com/High-Volume-of-messages-tf2941814.html#a8237114 Sent from the ActiveMQ - User mailing list archive at Nabble.com.
-- James ------- http://radio.weblogs.com/0112098/
