Let me make apache drop connections if you will find a lot more than MaxClients connections.

My configuration is

StartServers         5    
MinSpareServers      5
MaxSpareServers      10
ListenBackLog        1
MaxClients           10
MaxRequestsPerChild  0

But apache produces 10 processes and is constantly on the handle demands and set them into queue. However i want apache to throw 503 Service Not available header and drop new demands whatsoever

How to achieve that? Sanks!