id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
712	limit_conn and internal redirects	Alex Habarov		"It seems that limit_conn is only checked at the beginning of the request processing and is ignored in other processing stages. This sometimes results in somewhat unanticipated behaviour when dealing with internal redirects.

Consider an example:

{{{
limit_conn_zone $binary_remote_addr zone=addr:10m;

server {
    listen       80;
    server_name  site.com;

    index index.html;

    limit_conn addr 20; # first rule

    location / {
        limit_conn addr 10; # second rule
        root /var/www;
    }
}
}}}

Since any request ends up in the only defined location, one would expect that the second rule would always be used. However, only the first rule is applied if we try to request http://site.com (that is,  without relative reference part). If we move index directive inside the location though, the second rule will be used without exception.

This may not be exactly a bug, but if this behaviour is ""by design"" some additional explanation might be worth mentioning in the documentation.
"	defect	accepted	trivial		documentation			limit_conn index x-accel-redirect		Linux alex-home 3.13.0-44-generic #73-Ubuntu SMP Tue Dec 16 00:23:46 UTC 2014 i686 i686 i686 GNU/Linux	"nginx version: nginx/1.4.6 (Ubuntu)
built by gcc 4.8.2 (Ubuntu 4.8.2-19ubuntu1) 
TLS SNI support enabled
configure arguments: --with-cc-opt='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-Bsymbolic-functions -Wl,-z,relro' --prefix=/usr/share/nginx --conf-path=/etc/nginx/nginx.conf --http-log-path=/var/log/nginx/access.log --error-log-path=/var/log/nginx/error.log --lock-path=/var/lock/nginx.lock --pid-path=/run/nginx.pid --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --with-debug --with-pcre-jit --with-ipv6 --with-http_ssl_module --with-http_stub_status_module --with-http_realip_module --with-http_addition_module --with-http_dav_module --with-http_geoip_module --with-http_gzip_static_module --with-http_image_filter_module --with-http_spdy_module --with-http_sub_module --with-http_xslt_module --with-mail --with-mail_ssl_module --add-module=/build/buildd/nginx-1.4.6/debian/modules/nginx-auth-pam --add-module=/build/buildd/nginx-1.4.6/debian/modules/nginx-dav-ext-module --add-module=/build/buildd/nginx-1.4.6/debian/modules/nginx-echo --add-module=/build/buildd/nginx-1.4.6/debian/modules/nginx-upstream-fair --add-module=/build/buildd/nginx-1.4.6/debian/modules/ngx_http_substitutions_filter_module            "