On Wed, 27 Feb 2002, Joseph Wayne Norton wrote: > For dynamic content that has been cached or can be cached, the > "Distributor" component would simply send the response back to the > client (as mod_proxy does now after talking with the backend). For > dynamic content that cannot be cached or doesn't need to be cached, > the "Distributor" would implement a form of TCP handoff that would > allow the backend to serve the response directly to the client. This > later step probably cannot be done without some additional > kernel-level module.
I do not understand why do you want that the backend will serve response directly to the client ? If ithe client is slow then it will keep busy the backend. > > > Is it possible to integrate apache 2.0's mod_cache with mod_accel > > > and/or add mod_accel's features to mod_proxy? > > > > Mod_proxy is no longer ancient nor hard to maintain, and as far as I am > > aware the new mod_proxy does almost everything mod_accel does - if it > > doesn't, tell me what's broken and I'll try to fix it. > > > > I haven't spent any time examining the source (or trying to extend) of > mod_proxy or mod_accel so I am not able to judge either module. > > The 2 main points that I picked up from Igor's mail that I'm not sure > if mod_proxy supports or not: > > a. It frees backend as soon as possible. mod_proxy can keep busy > backend with slow client, i.e, using mod_proxy to accelerate > backend is not worked with slow clients . The last patch allows to specify mod_proxy the big buffer to get backend reponse. But if repsonse would be bigger then this buffer then slow client can still stall backend. > b. It can use busy locks and limit number of connection to > backend. Yes, mod_proxy can not it. > One additional feature that I would like to have with mod_proxy is to > have a way to install error_handler documents for all or individual > backends. This would allow apache to return a customized error page > for individual backends for cases when the backend is not reachable, > etc. mod_accel allows it. It seems that mod_proxy in 1.3.23 allows it too but I'm not sure. Igor Sysoev
