Hi there,
In my setup an incoming HTTP requests follows the chain Varnish ->
Haproxy -> Nginx. Haproxy is configured to have Nginx as one of the
backends.
I have an interesting problem: some client browsers have a too big
cookie in the request header, and Nginx is thus issuing a 400 Bad
Request. As a result, this 400 error code is propagated to Haproxy in
most cases, but in some occasions Haproxy reports a 502 Bad Gateway.
In the attached Haproxy log output, haproxy reports mostly 400 errors,
but in some cases it is reporting 502, whereas Nginx always reports
400.
It's a bit annoying for me, since I carefully monitor all 5xx status
codes, as it usually means there is something wrong on the server
side.
I'm using haproxy 1.3.15.9 on Ubuntu 9.04
Any idea?
--
Jean-Baptiste Quenot
http://jbq.caraldi.com/
Jul 6 10:45:46 s2 haproxy[10452]: 127.0.0.1:54160 [06/Jul/2009:10:45:46.079]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 13/7/7/4/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:45:49 s2 haproxy[10452]: 127.0.0.1:54541 [06/Jul/2009:10:45:49.423]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 2/1/1/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:45:49 s2 haproxy[10452]: 127.0.0.1:54589 [06/Jul/2009:10:45:49.932]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 7/4/4/2/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:45:50 s2 haproxy[10452]: 127.0.0.1:54595 [06/Jul/2009:10:45:50.275]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 4/2/2/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:45:50 s2 haproxy[10452]: 127.0.0.1:54633 [06/Jul/2009:10:45:50.569]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 2/1/1/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:45:51 s2 haproxy[10452]: 127.0.0.1:54674 [06/Jul/2009:10:45:51.165]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:45:51 s2 haproxy[10452]: 127.0.0.1:54717 [06/Jul/2009:10:45:51.465]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 7/4/4/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:45:52 s2 haproxy[10452]: 127.0.0.1:54848 [06/Jul/2009:10:45:52.067]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 38/22/21/10/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:45:52 s2 haproxy[10452]: 127.0.0.1:54998 [06/Jul/2009:10:45:52.604]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 41/31/31/15/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:45:53 s2 haproxy[10452]: 127.0.0.1:55076 [06/Jul/2009:10:45:53.153]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 8/4/4/2/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:45:53 s2 haproxy[10452]: 127.0.0.1:55165 [06/Jul/2009:10:45:53.603]
frontend backend/s1 0/0/1/-1/2 502 1425 - - SH-- 20/11/11/5/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:45:54 s2 haproxy[10452]: 127.0.0.1:55280 [06/Jul/2009:10:45:54.190]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 27/19/19/7/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:45:54 s2 haproxy[10452]: 127.0.0.1:55432 [06/Jul/2009:10:45:54.978]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 5/3/3/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:46:35 s2 haproxy[10452]: 127.0.0.1:59805 [06/Jul/2009:10:46:35.571]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:46:36 s2 haproxy[10452]: 127.0.0.1:59838 [06/Jul/2009:10:46:36.014]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 2/1/1/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:46:36 s2 haproxy[10452]: 127.0.0.1:59850 [06/Jul/2009:10:46:36.341]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:46:36 s2 haproxy[10452]: 127.0.0.1:59868 [06/Jul/2009:10:46:36.660]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:46:37 s2 haproxy[10452]: 127.0.0.1:59895 [06/Jul/2009:10:46:37.056]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:46:37 s2 haproxy[10452]: 127.0.0.1:59911 [06/Jul/2009:10:46:37.425]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 4/2/2/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:46:37 s2 haproxy[10452]: 127.0.0.1:59929 [06/Jul/2009:10:46:37.906]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 0/0/0/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:47:43 s2 haproxy[10452]: 127.0.0.1:36676 [06/Jul/2009:10:47:43.707]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 4/2/2/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:47:43 s2 haproxy[10452]: 127.0.0.1:36716 [06/Jul/2009:10:47:43.946]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 10/5/5/2/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:47:44 s2 haproxy[10452]: 127.0.0.1:36747 [06/Jul/2009:10:47:44.332]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:47:44 s2 haproxy[10452]: 127.0.0.1:36760 [06/Jul/2009:10:47:44.654]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 0/0/0/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:47:45 s2 haproxy[10452]: 127.0.0.1:36770 [06/Jul/2009:10:47:45.029]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:47:45 s2 haproxy[10452]: 127.0.0.1:36778 [06/Jul/2009:10:47:45.297]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 0/0/0/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:47:45 s2 haproxy[10452]: 127.0.0.1:36827 [06/Jul/2009:10:47:45.755]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 2/1/1/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:47:46 s2 haproxy[10452]: 127.0.0.1:36929 [06/Jul/2009:10:47:46.210]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 12/9/9/4/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:48:57 s2 haproxy[10452]: 127.0.0.1:43745 [06/Jul/2009:10:48:57.299]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 2/1/1/1/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:48:57 s2 haproxy[10452]: 127.0.0.1:43764 [06/Jul/2009:10:48:57.683]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 4/2/2/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:48:57 s2 haproxy[10452]: 127.0.0.1:43778 [06/Jul/2009:10:48:57.965]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 4/2/2/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:48:58 s2 haproxy[10452]: 127.0.0.1:43794 [06/Jul/2009:10:48:58.324]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 4/2/2/2/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:48:58 s2 haproxy[10452]: 127.0.0.1:43855 [06/Jul/2009:10:48:58.721]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 2/1/1/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:48:59 s2 haproxy[10452]: 127.0.0.1:43896 [06/Jul/2009:10:48:59.123]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:48:59 s2 haproxy[10452]: 127.0.0.1:43906 [06/Jul/2009:10:48:59.511]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 2/1/1/1/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:48:59 s2 haproxy[10452]: 127.0.0.1:43952 [06/Jul/2009:10:48:59.973]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:49:00 s2 haproxy[10452]: 127.0.0.1:43971 [06/Jul/2009:10:49:00.468]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 6/3/3/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:49:01 s2 haproxy[10452]: 127.0.0.1:44030 [06/Jul/2009:10:49:01.517]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 4/2/2/2/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:49:02 s2 haproxy[10452]: 127.0.0.1:44039 [06/Jul/2009:10:49:02.012]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 4/2/2/2/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:49:02 s2 haproxy[10452]: 127.0.0.1:44051 [06/Jul/2009:10:49:02.217]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 4/2/2/2/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:49:02 s2 haproxy[10452]: 127.0.0.1:44081 [06/Jul/2009:10:49:02.607]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 6/3/3/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:49:03 s2 haproxy[10452]: 127.0.0.1:44138 [06/Jul/2009:10:49:03.016]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 10/5/5/1/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:49:03 s2 haproxy[10452]: 127.0.0.1:44146 [06/Jul/2009:10:49:03.296]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 4/2/2/1/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:49:03 s2 haproxy[10452]: 127.0.0.1:44180 [06/Jul/2009:10:49:03.583]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:49:03 s2 haproxy[10452]: 127.0.0.1:44188 [06/Jul/2009:10:49:03.850]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 4/2/2/1/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:49:04 s2 haproxy[10452]: 127.0.0.1:44212 [06/Jul/2009:10:49:04.219]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 2/1/1/1/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:50:20 s2 haproxy[10452]: 127.0.0.1:43365 [06/Jul/2009:10:50:20.434]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 22/11/11/5/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:50:20 s2 haproxy[10452]: 127.0.0.1:43431 [06/Jul/2009:10:50:20.716]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 33/21/21/12/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:50:21 s2 haproxy[10452]: 127.0.0.1:43487 [06/Jul/2009:10:50:21.019]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 13/7/7/4/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:50:21 s2 haproxy[10452]: 127.0.0.1:43541 [06/Jul/2009:10:50:21.410]
frontend backend/s1 0/0/0/-1/1 502 1425 - - SH-- 2/1/0/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:50:21 s2 haproxy[10452]: 127.0.0.1:43568 [06/Jul/2009:10:50:21.917]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 2/1/1/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:50:22 s2 haproxy[10452]: 127.0.0.1:43588 [06/Jul/2009:10:50:22.214]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:50:22 s2 haproxy[10452]: 127.0.0.1:43609 [06/Jul/2009:10:50:22.591]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 4/2/2/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:51:53 s2 haproxy[10452]: 127.0.0.1:52180 [06/Jul/2009:10:51:53.551]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 2/1/1/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:51:53 s2 haproxy[10452]: 127.0.0.1:52193 [06/Jul/2009:10:51:53.874]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:51:54 s2 haproxy[10452]: 127.0.0.1:52233 [06/Jul/2009:10:51:54.268]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 3/2/2/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:51:54 s2 haproxy[10452]: 127.0.0.1:52244 [06/Jul/2009:10:51:54.387]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:51:54 s2 haproxy[10452]: 127.0.0.1:52271 [06/Jul/2009:10:51:54.686]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:51:55 s2 haproxy[10452]: 127.0.0.1:52276 [06/Jul/2009:10:51:55.107]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:51:55 s2 haproxy[10452]: 127.0.0.1:52283 [06/Jul/2009:10:51:55.271]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 2/1/1/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:51:55 s2 haproxy[10452]: 127.0.0.1:52296 [06/Jul/2009:10:51:55.585]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:51:55 s2 haproxy[10452]: 127.0.0.1:52308 [06/Jul/2009:10:51:55.837]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:51:56 s2 haproxy[10452]: 127.0.0.1:52403 [06/Jul/2009:10:51:56.978]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 7/6/1/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:51:58 s2 haproxy[10452]: 127.0.0.1:52550 [06/Jul/2009:10:51:58.136]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 3/2/1/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:51:58 s2 haproxy[10452]: 127.0.0.1:52606 [06/Jul/2009:10:51:58.613]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 12/7/7/3/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:54:57 s2 haproxy[10452]: 127.0.0.1:40508 [06/Jul/2009:10:54:57.337]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:54:57 s2 haproxy[10452]: 127.0.0.1:40524 [06/Jul/2009:10:54:57.621]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 2/1/1/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:54:57 s2 haproxy[10452]: 127.0.0.1:40533 [06/Jul/2009:10:54:57.923]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:54:58 s2 haproxy[10452]: 127.0.0.1:40544 [06/Jul/2009:10:54:58.181]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:54:58 s2 haproxy[10452]: 127.0.0.1:40552 [06/Jul/2009:10:54:58.459]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 0/0/0/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:54:58 s2 haproxy[10452]: 127.0.0.1:40594 [06/Jul/2009:10:54:58.730]
frontend backend/s1 0/0/0/-1/1 502 1425 - - SH-- 10/5/5/2/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:54:59 s2 haproxy[10452]: 127.0.0.1:40609 [06/Jul/2009:10:54:59.013]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:54:59 s2 haproxy[10452]: 127.0.0.1:40637 [06/Jul/2009:10:54:59.434]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 2/1/1/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:00 s2 haproxy[10452]: 127.0.0.1:40679 [06/Jul/2009:10:55:00.048]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 0/0/0/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:55:00 s2 haproxy[10452]: 127.0.0.1:40734 [06/Jul/2009:10:55:00.667]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 12/8/8/4/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:55:01 s2 haproxy[10452]: 127.0.0.1:40807 [06/Jul/2009:10:55:01.287]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 0/0/0/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:55:01 s2 haproxy[10452]: 127.0.0.1:40874 [06/Jul/2009:10:55:01.876]
frontend backend/s1 0/0/10/0/10 400 311 - - SD-- 2/1/1/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:55:23 s2 haproxy[10452]: 127.0.0.1:47209 [06/Jul/2009:10:55:23.959]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 2/1/1/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:55:24 s2 haproxy[10452]: 127.0.0.1:47251 [06/Jul/2009:10:55:24.824]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 0/0/0/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:55:25 s2 haproxy[10452]: 127.0.0.1:47299 [06/Jul/2009:10:55:25.600]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 4/2/2/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:26 s2 haproxy[10452]: 127.0.0.1:47334 [06/Jul/2009:10:55:26.156]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:26 s2 haproxy[10452]: 127.0.0.1:47349 [06/Jul/2009:10:55:26.317]
frontend backend/s2 0/0/0/-1/0 502 1425 - - SH-- 2/1/1/1/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:55:26 s2 haproxy[10452]: 127.0.0.1:47384 [06/Jul/2009:10:55:26.508]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 6/3/3/2/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:26 s2 haproxy[10452]: 127.0.0.1:47437 [06/Jul/2009:10:55:26.882]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 8/4/4/2/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:26 s2 haproxy[10452]: 127.0.0.1:47451 [06/Jul/2009:10:55:26.972]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 6/3/3/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:27 s2 haproxy[10452]: 127.0.0.1:47475 [06/Jul/2009:10:55:27.292]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:27 s2 haproxy[10452]: 127.0.0.1:47490 [06/Jul/2009:10:55:27.515]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 0/0/0/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:55:42 s2 haproxy[10452]: 127.0.0.1:49205 [06/Jul/2009:10:55:42.706]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 4/2/2/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:42 s2 haproxy[10452]: 127.0.0.1:49217 [06/Jul/2009:10:55:42.814]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:43 s2 haproxy[10452]: 127.0.0.1:49231 [06/Jul/2009:10:55:43.061]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 2/1/1/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:55:43 s2 haproxy[10452]: 127.0.0.1:49272 [06/Jul/2009:10:55:43.396]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 6/3/3/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:43 s2 haproxy[10452]: 127.0.0.1:49304 [06/Jul/2009:10:55:43.613]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 13/8/8/5/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:55:43 s2 haproxy[10452]: 127.0.0.1:49358 [06/Jul/2009:10:55:43.896]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 6/3/3/2/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:44 s2 haproxy[10452]: 127.0.0.1:49375 [06/Jul/2009:10:55:44.263]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 4/2/2/2/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:44 s2 haproxy[10452]: 127.0.0.1:49394 [06/Jul/2009:10:55:44.788]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:45 s2 haproxy[10452]: 127.0.0.1:49420 [06/Jul/2009:10:55:45.411]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 2/1/1/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:45 s2 haproxy[10452]: 127.0.0.1:49460 [06/Jul/2009:10:55:45.948]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 2/1/1/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:46 s2 haproxy[10452]: 127.0.0.1:49490 [06/Jul/2009:10:55:46.412]
frontend backend/s1 0/0/0/0/0 400 311 - - SD-- 2/1/1/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:46 s2 haproxy[10452]: 127.0.0.1:49547 [06/Jul/2009:10:55:46.842]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 4/2/2/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:55:47 s2 haproxy[10452]: 127.0.0.1:49612 [06/Jul/2009:10:55:47.172]
frontend backend/s1 0/0/0/-1/0 502 1425 - - SH-- 16/9/9/4/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:55:47 s2 haproxy[10452]: 127.0.0.1:49678 [06/Jul/2009:10:55:47.626]
frontend backend/s2 0/0/0/0/0 400 311 - - SD-- 5/3/3/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:57:09 s2 haproxy[10452]: 127.0.0.1:55446 [06/Jul/2009:10:57:09.854]
frontend backend/s1 0/0/0/10/10 404 788 - - ---- 0/0/0/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:57:11 s2 haproxy[10452]: 127.0.0.1:55559 [06/Jul/2009:10:57:11.243]
frontend backend/s1 0/0/0/9/9 404 788 - - ---- 2/1/1/1/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:57:14 s2 haproxy[10452]: 127.0.0.1:55868 [06/Jul/2009:10:57:14.837]
frontend backend/s1 0/0/0/10/10 404 788 - - ---- 2/1/1/0/0 0/0 {my.site.com}
"GET /some/url.html HTTP/1.1"
Jul 6 10:57:15 s2 haproxy[10452]: 127.0.0.1:55948 [06/Jul/2009:10:57:15.597]
frontend backend/s2 0/0/0/7/8 404 788 - - ---- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"
Jul 6 10:57:16 s2 haproxy[10452]: 127.0.0.1:55982 [06/Jul/2009:10:57:16.529]
frontend backend/s2 0/0/0/7/7 404 788 - - ---- 0/0/0/0/0 0/0 {my.site.com} "GET
/some/url.html HTTP/1.1"