Hi Joe, On Wed, Aug 25, 2010 at 03:46:06PM -0700, Joe Williams wrote: > > Is there anyway to look deeper into erroneous requests? Preferably having > haproxy log more details in the cases of something like a PR (400 status > code). I have some naughty clients and want to see what haproxy is seeing and > why it determines a request as PR. If haproxy doesn't have a facility for > this anyone have suggestions on tools (better than tcpdump?) to get this > information?
yes there's already something for that. Connect to your stats socket using socat and issue "show errors". You will see a precise dump of the last invalid request and invalid response for each frontend/backend, with a pointer to the first faulty character. Example : $ echo "show errors" | socat stdio unix-connect:/var/run/haproxy.stat Regards, Willy
