Hi there,
We've found an undefined behavior in certain condition, tend to consider this as a bug.
'If alias is used inside a location defined with a regular expression then such regular expression should contain captures and alias should refer to these captures (0.7.40)'. If, contrary, we're mistakenly using a regexp with selection but alias does not contain $1 variable, we're getting Not Found errors for some random substrings of alias value. More on that, active connections are growing in this situation until workers*clients number is reached, and then nginx stops accepting connections, causing Connection Timed Out on client.
location ~* ^/data_15/hot/(article|news)/([0-9]+)\.htm$ {
alias /opt/project.ru/default/empty.html;
}
In error log we can see mostly "open() "/opt/project.ru/defau" failed (2: No such file or directory)", though sometimes path is '/opt/project.ru/default/empty.html^P' or '/opt/project.ru/default/empty.html^A' or even '/opt/project.ru/default/empty.html7m<99>;96>I?<9E>^WIj?1X?7m<8A>^A"'.
OS is Debian 6.0.4
uname -a
Linux frontend-7 2.6.32-5-amd64 #1 SMP Mon Jan 16 16:22:28 UTC 2012 x86_64 GNU/Linux
nginx -V
nginx version: nginx/1.0.12
built by gcc 4.4.5 (Debian 4.4.5-8)
TLS SNI support enabled
configure arguments: --prefix=/ --sbin-path=/usr/sbin/nginx_new --conf-path=/etc/nginx_new/nginx_new.conf --pid-path=/var/run/nginx_new.pid --lock-path=/var/lock/nginx_new.lock --error-log-path=/var/log/nginx_new/error.log --http-log-path=/var/log/nginx_new/access.log --user=www-data --group=www-data --with-http_ssl_module --with-http_realip_module --with-http_gzip_static_module --with-http_image_filter_module --with-pcre=../../libs/pcre-8.21 --with-zlib=../../libs/zlib-1.2.5 --with-openssl=../../libs/openssl-1.0.0e --http-client-body-temp-path=/var/lib/nginx_new/body --http-proxy-temp-path=/var/lib/nginx_new/proxy --http-fastcgi-temp-path=/var/lib/nginx_new/fastcgi --http-uwsgi-temp-path=/var/lib/nginx_new/uwsgi-temp --http-scgi-temp-path=/var/lib/nginx_new/scgi-temp --with-http_dav_module --with-http_stub_status_module --with-http_geoip_module --add-module=../../libs/nginx_mogilefs_module-1.0.4 --with-http_secure_link_module