FreeRadius 3.0.11 [Best method to log access accept requests to DB]

Hi, We are trying to log users access accept requests in a database for later statistics and analysis for the network. Firstly, we accomplished this requirement using the post-auth section by using sql module to inserting users request and it worked perfectly, however, and obviously, if the database is down for any reason, the radius won't process further requests which will prevent users from authentication. So we are wondering if there is any method to log radius accept request in a similar fashion like "Post-Auth-Type REJECT" where we noticed that FreeRadius can keep accepting radius requests and tolerate DB failures. Ibrahim --