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POhow to create multiple instances of activemq topic subscribers using virtual destinations?
 

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    <p>I have a publisher that is pushing messages to a topic. I have multiple subscribers each doing a different task once they consume the message from the topic. Now I want my system to scale to multiple instances of the same process running on different hosts/same host. e.g. I want to run multiple copies of my application A on different hosts so that if one instance of A is slow, then the other instances can pull in subsequent messages and make forward progress.. I found out that this is possible using virtual destinations. I followed the steps here - <a href="http://activemq.apache.org/virtual-destinations.html" rel="noreferrer">http://activemq.apache.org/virtual-destinations.html</a></p> <p>But how do i setup my multiple subscribers to the same topic with the same client id? when i try to do that, i get errors. when i try some other way, it doesn't work. can someone help?</p> <p>Normally, I start a subscriber by doing the below steps - </p> <pre><code> ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(ActiveMQConnection.DEFAULT_USER, ActiveMQConnection.DEFAULT_PASSWORD, ActiveMQConnection.DEFAULT_BROKER_URL;); activeMQConnection = connectionFactory.createConnection(); activeMQConnection.setClientID("subscriber1"); activeMQConnection.setExceptionListener(exceptionListener); activeMQSession = activeMQConnection.createSession(false, Session.CLIENT_ACKNOWLEDGE); activeMQTopic = activeMQSession.createTopic("myTopic"); activeConsumer = activeMQSession.createDurableSubscriber(activeMQTopic, "myTopic"); activeConsumer.setMessageListener(messageListener); activeMQConnection.start(); </code></pre> <p>when i try to create a 2nd subscriber and pass the topic name as "VirtualTopic.myTopic", nothing happens.</p> <p>thanks</p>
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    1. UST Vinod Gupta
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    1. CO@vinod you mention these [link] (http://activemq.apache.org/virtual-destinations.html) .I seen xml code in that link.Where will find that xml file.
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