Re: "Network of Brokers" and persistence

2010-11-15 Thread Gary Tully
networks of brokers in activemq are store and forward. So a persistent message will only exist on one broker at a time. If can start on the embedded broker and get forward to a networked broker if there is demand, In which case it will be removed/consumed from the embedded broker and sent to the ta

Re: "Network of Brokers" and persistence

2010-11-15 Thread NerdyNick
I have however also notice that persistent doesn't appear to handle failover well when in a network of brokers setup. For instance say you have 3 brokers with a consumer attached to each. All connected in a persistent style. If broker 1 goes down and the consumer switches over to broker 2. Any mess

Re: "Network of Brokers" and persistence

2010-11-15 Thread Johan Edstrom
If you think of persistence in the same way you would a POP3 store, i.e the object of the persistence store is more to provide reliability in that 1: Write incoming message to disk, 2: Maintain a journal of actions taken to the message 3: Remove the message from the store once consumed. So the

"Network of Brokers" and persistence

2010-11-15 Thread Steve Cohen
I am in the phase of imagining what using ActiveMQ to design a wrapper around a legacy process would look like, and reading the book, which I have bought. I should say that I am impressed so far with ActiveMQ and the mapping of what it does with what I am trying to do seems very good. I am tr