Hi Holger, On Wed, Aug 03, 2011 at 02:55:15PM +0200, Holger Just wrote: > Graeme, > > On 2011-08-03 14:41, Graeme Donaldson wrote: > > So to get to my actual question, with 1.4.8, can I remove "option > > httpclose", keep "option forwardfor" and still see the X-Forwarded-For > > header added to each request made? Or does HAproxy still only analyze > > the first request when client-side HTTP keep-alive is being used? > > The default in HAproxy still uses the tunnel mode, i.e. it analyzes only > the very first headers in a TCP connection. This mode is used if you > don't specify anything. > > The second mode is "option httpclose" which will instruct both the > server and the client to close their connections directly after the > first request of that TCP connection. It works the same as in 1.3. > > Haproxy 1.4 introduced a new mode with "option http-server-close". It > still closed the connection to the server but maintains keep-alive > towards the client if possible and used. On most setups, you probably > want to use that as it helps with latency on the single high-latency > part of your connection (between Haproxy and the client). > > There are a couple of additional options like "http-pretend-keepalive" > or "forceclose" which help to beat unfriendly or non-conforming > components into submission. These options are thus not needed most of > the time. > > Details about all the options can be found in the documentation at > http://haproxy.1wt.eu/download/1.4/doc/configuration.txt
I'd like to congratulate you for this well detailed explanation, you summed it up perfectly ! Willy
