JABS default database configuration is HSQL. This is the preferred database, since it is fully integrated into the JABS server. But, for installations that may have large, frequent job schedules, a separate database may be preferable. For these situations, you can change the back end database. Changing the configuration is a bit cumbersome at the moment. It requires you to edit a XML file inside the web application and restart the server. When you install a new release of the web application, you will need to reapply these settings. A configuration page will be included in a future release to maintain these settings.