In the postgresql-persistence-service.xml file, where did you get these two items from, they do not appear in the file I am looking at: <!-- By default we use the TCP stack for data --> | <attribute name="DataChannelConfig"> | ... | </attribute> | <!-- We use udp stack for the control channel --> | <attribute name="ControlChannelConfig"> | ... | </attribute> Also, in the *-ds.xml file, change the mapping to "PostgreSQL 8.0". The server/xxx/conf/standardjbosscmp-jdbc.xml file contains the valid mapping names. Of course, this is only an issue if you are using EJB2.x entity beans with container-managed persistence. Regarding quartz, see http://www.jboss.com/index.html?module=bb&op=viewtopic&t=141835 For a working example, go to http://www.manning.com/jbossinaction, download the source zip file. Modify the build properties in jbia-src/ch00/build.properties for your environment. (Open the jbia-src/index.html file for full instructions and information.) "cd" into the jbia-src/ch15 directory and run "ant 03" It will create an app server configuration using PostgreSQL (or MySQL, depending on build.properties) as the database. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4205024#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...