no, it will keep everything in memory as is very good practice. these days since memory is cheap. Besides that...if your jbpm engine handles more than 100 process instances per day (not specifically new ones), you have to restart your j2ee server each day. If you handle more than 1000 instances a day you have to reset your j2ee server each day and your hardware each week. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4072667#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...