Look in the server/default/jbossweb-tomcat55.sar/server.xml file. The < connector > node for port 8080 has a maxThreads value of 250 by default. This is the maximum number of concurrent requests being processed. There is also an acceptCount of 100, which means that an additional 100 requests can be pending. You can, of course, set these to higher values (I have seen recommendations for 400 maxThreads for large numbers (thousands) of users, with a higher acceptCount to handle request queueing.). Whether the server can keep with a large number of connections depends on the processor(s) and memory. For full documentation on the connector options, see http://tomcat.apache.org/tomcat-5.5-doc/config/http.html View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3976053#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...