On Sun, Mar 25, 2018 at 12:40 PM, Arnaud Grandville <agrandvi...@gmail.com> wrote: > Hi the list, > > I’m using httpd as reverse proxy to rewrite and forward URL to numerous > targets servers. > > Under heavy load conditions, some requests are not served whereas no errors > are found on access logs. > > After investigations, I understand that some clients closed connection > before the response is sent. > > I worked on a patch to return a specific http error code in such situation. > > The new http 499 code in access log > > 127.0.0.1 - - [25/Mar/2018:17:32:12 +0200] "GET /aa HTTP/1.1" 200 564 > > 127.0.0.1 - - [25/Mar/2018:17:33:07 +0200] "GET /aa HTTP/1.1" 499 564 > > 127.0.0.1 - - [25/Mar/2018:17:40:52 +0200] "GET / HTTP/1.1" 404 198 > > 127.0.0.1 - - [25/Mar/2018:17:41:10 +0200] "GET / HTTP/1.1" 499 198 >
IIUC %X is normally used to log this condition.
