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I need to design a system that can handle 200K request per second in each machine over HTTP.
The wcf service need to be hosted under win service.
I wonder if wcf can handle such a requirement?
What is the best system setup/ best configuration?
The machine itself is pretty heavy 32G RAM and 8 core (or more), and can be upgraded if needed
Can I handle such amount of request in each single machine with wcf using http?
Doing this on a single machine is likely to be pretty tough (if indeed it’s possible). It would be better to make your system scale horizontally, so you can add lots of machines as required. How you do that will depend on what your system actually needs to do. If it’s some simple calculation which requires no persisted state, it shouldn’t be too hard. If you’ve got some interaction with storage of some form which really needs to be read/written on each request, it’ll be a lot harder – and choosing your persistence technology is likely to be pretty key to making it all hang together.
Note that there are other benefits to scaling horizontally too – in particular, the ability to upgrade the system without any downtime (if you’re careful) and removing a huge single point of failure.