&quot;prabhat.jha(a)jboss.com&quot; wrote : First, you should only have portal-mysql-ds.xml (or whatever name you give it as long as it's named like *-dx.xml). You can leave hsqldb-ds.xml untouched. I would suggest you double check this file or you can paste the contents here. content of portal-mysql-ds.xml: <?xml version="1.0" encoding="UTF-8"?> <local-tx-datasource> <jndi-name>PortalDS</jndi-name> <connection-url>jdbc:mysql://localhost:3306/jbossportal?useServerPrepStmts=fals</connection-url> <driver-class>com.mysql.jdbc.Driver</driver-class> <user-name>jbossportal</user-name> jboss </local-tx-datasource> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4157836#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...