I personally ditched lighttpd on my own website (PHP, large traffic, but only a single server) because it had some memory leak that would, over time, result in

I personally ditched lighttpd on my own website (PHP, large traffic, but only a single server) because it had some memory leak that would, over time, result in increasing memory usage and eventually cause the server to chug. It had not seen any bugfix releases for quite a long time at that point, and nginx was available by then, so I made the swap. I continued to serve that website off of a single server for the rest of its lifetime.