Hi, I'm using EJB 3 for a msg, the code likes: @MessageDriven(activationConfig = { @ActivationConfigProperty( propertyName="destinationType", propertyValue="javax.jms.Topic"), @ActivationConfigProperty( propertyName="destination", propertyValue="...") }) @Clustered public class MyMSGBean implements javax.jms.MessageListener ... but it seemed there is only one instance in container, which slowdowns processing all requests. Can any one tell how to set like pool/cluster size for this bean? Thanks John View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4078154#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...