Now I found that even If I shutdown my Server1 and only Server2 is up and running. I applied http://localhost/BrowserWeb/servlet/BrowserServlet in my address bar and it loads the main page. but when I submit my user name and password servlet got stuck and i have this exception on jboss console. | 14:25:59,059 ERROR [CoyoteAdapter] An exception or error occurred in the container during the request processing | java.lang.RuntimeException: JvmRouteValve.checkJvmRoute(): Tomcat JvmRoute is null. Need to assign a value in Tomcat serv | at org.jboss.web.tomcat.service.session.JvmRouteValve.checkJvmRoute(JvmRouteValve.java:106) | at org.jboss.web.tomcat.service.session.JvmRouteValve.invoke(JvmRouteValve.java:81) | at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) | at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) | at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) | at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) | at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:437) | at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:366) | at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) | at java.lang.Thread.run(Unknown Source) | please help this is happening even when its try to replicate the session in absence of other server :-( View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4245845#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...