I'm getting ready to setup a server that will be responsible for tracking statistical data from a high volume traffic source. It will be handling requests at about 6-7mil/hour on average, all of which are small GETs. All I need is a simple server setup that can process the parameters of the get request and write them to a CSV file.
My first thought was to use lighttpd+fastcgi+php, as that's a configuration I'm already familiar with. But, given that I don't get to make these kinds of performance decisions everyday, I'd like to explore some other options and see if there might be something even better for this purpose.