id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
551	Start Failure; Invalid Option with Map Expression in nginx.conf	sah62.pip.verisignlabs.com		"I recently upgraded a server from Ubuntu 12.04 LTS to 14.04 LTS and noticed that nginx was not starting automatically. Attempts to start it manually produce the following:

{{{
$ sudo service nginx start
$ sudo service nginx restart
 * Restarting nginx nginx                                                                                        [fail]
$
}}}

I can start the server successfully from the command line with ""sudo nginx"". Testing the configuration produces no error:

{{{
$ sudo nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
$
}}}

I modified /etc/init.d/nginx to produce more information and found the following:

{{{
nginx: invalid option: ""~*(crawl|Google|Slurp|bingbot|tracker|click|parser|spider|msnbot|Gigabot)""
}}}

This is the offending directive in my nginx.conf file:

{{{
map $http_user_agent $is_bot {
        default 0;
        ~*(crawl|Google|Slurp|bingbot|tracker|click|parser|spider|msnbot|Gigabot) 1;
}
}}}

It turns out that the string ""pid"" in ""spider"" is causing the start failure. If I change the regex to ""s.ider"" or ""s\160ider"" I can start the server successfully."	defect	closed	minor		nginx-core	1.4.x	invalid			Linux impala 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.4.6 (Ubuntu)
built by gcc 4.8.2 (Ubuntu 4.8.2-16ubuntu6)
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"