i have a site works via social engine script , its works in 1 detected server now , but this server stop some time When members frequently at the same moment .
so i want ::
1 - check code and sql if there any problem or bad Inquiry caused over load , and fix any problem about that .
2 - initialize the server and set it carries the largest possible number of users.
3 - use amazon ec2 (load balance - auto scaled for my site , because must be online Always , and must be still Ready to use greatest number of users at any time .
create a load balancing for 2 or 3 server without amazon .
i agree for any good resolve to this problem .