"nicolas.medoc" wrote : | Ok, there is sense to have clientMaxPoolSize<=maxpoolSize. But in this case I should expect that the backlog queue don't be used. So I wonder about the responsability of backlog queue. In what situation is it used ? Well, SocketServerInvoker will stop accepting connections when all the ServerThreads are in use, so if you have clientMaxPoolSize > maxpoolSize and create too many connection requests, the requests will go on the backlog queue. It just isn't a good situation, though. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4146034#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...