Thanks for your interest. Actually we didn't have any cluster setup, while we took the performance results. We actually wanted to get the performance of the application with a single server instance. Kindly advice me, whether I am missing some setting here? Then, regarding the JGroups version, here is it | Version: 2.2.8 | CVS: $Id: Version.java,v 1.18.2.1 2005/05/30 09:47:56 belaban Exp $ | History: (see doc/history.txt for details) | The real thing that makes me worry is that the application flow, for which I am testing the performance, does not include any call to the Jboss Cache. We are using Jboss Cache for a different flow/purpose, mainly for invalidating the custom in memory architecture that we have in our application. But I am not sure why this JGroup call is coming in. Kinldy let me know any more information. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3994121#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...