Hello, I'm using Jbpm 3.0.0 and Tomcat 4.1.27 for a purchasing order workflow application which has 7 process definitions (workflows), using PostgreSQL 8.0. The process definitions have 5-8 steps, forks, joins and decisions. I have dozens of process instances and hundreds of tasks successfully created every day, and sometimes I have noticed that some data from the process definition tables (jbpm_moduledefinition, jbpm_node or jbpm_transition) effectively dissapear ("holes" in some fields of data records), especially when then database traffic is high. This disturbs the creation of new tasks and make these process instances unusable. I would like to make the records from those tables "read only" after every deployment of a process definition, for the daily database usage, but I don't know how. Do you have any idea which is the cause of this data loss and how to prevent or solve it? Thank you for any answer. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3991254#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...