On Mon, Apr 13, 2015 at 6:09 PM, Lukas Tribus <luky...@hotmail.com> wrote:
> > On Mon, Apr 13, 2015 at 4:58 PM, Lukas Tribus > > <luky...@hotmail.com<mailto:luky...@hotmail.com>> wrote: > >> Hi, > >> > >> I'm experiencing latency problems while running HAProxy 1.4.18. > >> > >> Our backend servers reply to HAProxy almost instantly (~4ms), but some > >> of those replies are sent to the clients more than 100ms later. > >> > >> We have approx. 50k sessions opened at any time, with a HTTP request > >> coming in approximately every minute over each session. > > > > I suggest you try "option http-no-delay" but really try to understand > > the implications: > > > http://cbonte.github.io/haproxy-dconv/configuration-1.4.html#option%20http-no-delay > > > > > > > Thanks Lucas, "option http-no-delay" seems to have solved the problem. > > Good, but this will just hide the real problem and may cause others (as > per the documentation). > Both 1.4.23 and 1.4.20 fix latency (MSG_MORE/DONTWAIT) related problems, > also, if you always > expect zero latency from the proxy then you are misusing HTTP. > > I strongly suggest you consider upgrading to latest stable (either 1.4 or > better yet 1.5) and retry > without this command. > > You didn't provide your configuration so its not possible to tell if your > are running into those > already fixed bugs, or if you simply need zero latency in all cases per > application design. > > Hi Lukas, We've upgraded to 1.5.11 and are working fine without "option http-no-delay". Thank you for your help, -- *Michał Ślizak* DaftCode Sp. z o.o. ul. Domaniewska 34a, 02-672 Warszawa tel. +48 506 175 074
