Hi James, On Fri, May 06, 2016 at 02:41:12PM -0700, James Brown wrote: > We've got HAProxy sitting in front of a menagerie of web servers, none > of which handle `Expect: 100-continue` in any way, shape, or form. > When someone hits us with a POST from cURL, there's a kind of > irritating 1 second delay while cURL waits for the "HTTP/1.1 100 > Continue" response. Rather than try to solve it in every application > server, I was wondering if there's any way to force HAProxy to send a > "100 Continue" response when it gets a POST with "Expect: > 100-continue" (and then delete the Expect from the proxied request, of > course). > > It seems like there's already code for sending a 100 Continue if the > `http-buffer-request` option is set, so I guess I'm just asking about > the feasibility of making that behavior a stand-alone option without > having to put the whole request in RAM.
It's not the whole request that fits in RAM, it's always limited to the size of a buffer (typically 16kB). So you shouldn't worry at all, this option will definitely help you without adding any extra cost. Regards, Willy
