Hi Rainer, I meant to talk about the HTTP Keep-alive to the origin server (OS), not about TCP Keep-alive of operating system (OS). Excuse me for my confusing description.
> And yes: the forward proxy does *not* do HTTP Keepalive. Technical > reason: the connections to the origin server are pooled and retrieved > from and returned to the pool for each request. A forward proxy usually > talks to many diferent origin servers. Keeping those connections open in > a naive way would lead to a lot of not well used pools. Assuming that > during one client connection the origin server often is used for > multiple requests this could be improved, but would bloat the already > complicated proxy code even more. > And thank you for the answer and reasons! That is what I wanted to hear. So I understand the HTTP Keep-alive to the origin server is only supported for reverse proxy, as the design of httpd 2.2/2.3. Regards, Ryujiro Shibuya
