Hi, Thanks for your response. Can we increase min pool size to 400 and does this have anything to do with RAM(Memory) in the system. Currently we have 2GB of RAM in the system. Is this RAM enough to manupulate data for more than 250 users concurrent connection.Is this causing the issue? The value for InUseConnectionCount is long.I don't understand this. Thanks. Milan Gothe[/img] View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4174636#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...