What is Data Access Service Process (DAS)?
The Data Access Service (DAS) process is Sentinel Server's persistence service and provides an interface to the database. It provides data driven access to the database backend.
DAS is a container, composed of two different processes. Each process is responsible for different types of database operations. These processes are controlled by the following configuration files:
- das_binary.xml: used for event and correlated event insertion operations
- das_query.xml: all other database operations
DAS receives requests from the different Sentinel processes, converts them to a query against the database, processes the result from the database and converts it that back to a reply. It supports requests to retrieve events for Quick Query and Event Drill Down, to retrieve vulnerability information and advisor information and to manipulate configuration information. DAS also handles logging of all events being received from the Wizard Agent Manager and requests to retrieve and store configuration information.