On Thu, Aug 13, 2009 at 01:30:00AM +0200, [email protected] wrote: > Jayme Cox a écrit : > >Hi, > > > >We are running haproxy with almost 400 back end web servers and I was > >wondering if we are going to run into any limitations or performance > >issues with that many? > > > >There are only ~5 connections to each server, with most of them very > >small and short lived, transfering an average of 5 kb per connection. > > > > Wouaw, 400 web server for ~10Mbps of generated traffic ? > that look like quite an inefficient use of a web server... > > I'm sorry but i have to ask: what could justify the deploiment of > such an overwhelming configuration for so little output ?
I agree this sounds very strange and seems almost unmanageable... Anyway, you should not expect any particular problem. The only thing I can see is that if you use cookie-based persistence, each new connection willl scan the list of servers to find the first one supporting the cookie. But that's not more expensive than ACLs or similar processing. I still expect a few thousands hits/s with 400 servers on a common machine. Willy
