On Wed, May 16, 2012 at 09:35:36AM +0200, Willy Tarreau wrote: > Hi, > > in the traces Dmitry Sivachenko sent to me privately, I found that the > trash buffer was overflown by a rewriting of too large a request. The > reason is that the trash buffer is of size BUFSIZE while the buffer > size was increased in the global section using > tune.bufsize. > > I thought we had fixed that issue long ago but it appears the problem is > still present both in 1.4.20 and 1.5-dev10. So please, be careful, don't > increase tune.bufsize beyond your default buffer size if you use reqrep > rules. > > The default buffer size is 16384, unless you built haproxy with different > options in which case you'll find it in the output of "haproxy -vv" : > > $ ./haproxy -vv > HA-Proxy version 1.4.20-3 2012/03/24 > Copyright 2000-2012 Willy Tarreau <[email protected]> > > Build options : > TARGET = linux24e > CPU = i586 > CC = i586-flx-linux-gcc > CFLAGS = -O0 -g -fno-strict-aliasing -DBUFSIZE=8030 -DMAXREWRITE=1030 > OPTIONS = USE_LINUX_SPLICE=1 USE_LINUX_TPROXY=1 USE_STATIC_PCRE=1 > > Default settings : > maxconn = 2000, bufsize = 8030, maxrewrite = 1030, maxpollevents = 200 > ^^^^^^^^^^^^^^ > here > > I'm checking where the patch for this issue has gone and am going to issue > a fixed version for 1.4 so that distro packagers can update their packages.
I have merged the fix for this 1.5-dev (will appear in the snapshot in a few hours) and am planning on issuing 1.4.21 with the fix this week-end after a few tests. Have a nice week-end, Willy
