We are performing Load test on Policy Server, with a sample resource (basic html page) from Apache. The script starts with 15 Users and increases by 15 users every minute until it reaches 500 Users, we are receiving success until the load is low, but it starts failing when the users reach 150 to 200. It is throwing "Internal Server Error", however I cannot see any error messages in Siteminder logs.
I have placed below cache parameters in ACO,
Please let me know, if I'm missing anything?