we occasionally get these errors in our logs: Thu May 18 09:31:05 2006 : Error: FATAL! Server is too busy to process requests and the server dies. I've found the core in src/main/threads.c that spits out this message but it's not clear to me under what circumstances this would/should happen. It happens on several boxes ranging from redhat 8.0 to fc4, some processes are talking to backend SQL databases some aren't (in fact, it's our plain radius passthrough/routing proxy servers with file only based config that seem to experience this issue the most). does anyone know what really causes this and how to fix it? we're serving around 50k DSL users with a nominal authentication load of around 200-300 requests per minute (this is for authentication only, accounting is handled by separate processes which don't experience the same problem). peak load can run into several thousands per minute when recovering from planned maintenance on part of the DSL network. Tony