Hi, We are using EJB3 Persistence with MySQL. We are having an issue where the connection is closed by MySQL after the default 8 hours of inactivity. Is there a property that can be set in JBOSS/EJB3 that can keep the connection active using keep alive or something similar. I have tried setting the following properties in the EJB3 persistence.properties file. But it did not seem to fix the problem. hibernate.connection.autoReconnect=true hibernate.connection.autoReconnectForPool=true hibernate.connection.is-connection-validation-required=true We are using the mysql 3.1 connector, we tried using the mysql 5.0.7 connector as well but still the timeout causes a socket error on the jboss side. Can you please let me know what parameters should be set or point me to the right literature. Thanks, Raghu. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4092082#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...