Hello, I realize I could view the source code to learn this, but for those who cannot do so, can someone explain how query-timeout DS configuration is actually implemented in JBoss 4.0.3+? If I have a query running for longer than the timeout period, does JBoss simply follow the JDBC spec and throw a SQLException? Does it do anything beyond that such as thread control, modifying the connection pool, etc? Does the query-timeout have any effect on Connection rollback()? If not, is there a way to also put a timeout on the rollback whereby an exception will be thrown? Thank You View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4076845#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...