Nginx memcached

memcachednginx

I try to use nginx with memcached with this configuration:

server {

    ...

    location / {
    default_type            text/html;
    set $memcached_key      $uri;
        memcached_pass 127.0.0.1:11211;
        error_page     404 = @fallback;
    }

    location @fallback {
        include uwsgi_params;
        uwsgi_pass unix:///var/tmp/site.sock;
    }

}

But all requests go to uwsgi with no memcache use:

nginx -V

nginx -V nginx version: nginx/1.1.19 TLS SNI support enabled configure
arguments: –prefix=/etc/nginx –conf-path=/etc/nginx/nginx.conf
–error-log-path=/var/log/nginx/error.log –http-client-body-temp-path=/var/lib/nginx/body –http-fastcgi-temp-path=/var/lib/nginx/fastcgi –http-log-path=/var/log/nginx/access.log –http-proxy-temp-path=/var/lib/nginx/proxy –http-scgi-temp-path=/var/lib/nginx/scgi –http-uwsgi-temp-path=/var/lib/nginx/uwsgi –lock-path=/var/lock/nginx.lock –pid-path=/var/run/nginx.pid –with-debug –with-http_addition_module –with-http_dav_module –with-http_geoip_module –with-http_gzip_static_module –with-http_image_filter_module –with-http_realip_module –with-http_stub_status_module –with-http_ssl_module –with-http_sub_module –with-http_xslt_module –with-ipv6 –with-sha1=/usr/include/openssl –with-md5=/usr/include/openssl –with-mail –with-mail_ssl_module –add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-auth-pam –add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-echo –add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-upstream-fair
–add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-dav-ext-module

There is no ngx_http_memcached_module in output.

I use Ubuntu 12.04 and nginx installed with apt-get install nginx.

Does that mean I must install it to use memcached or something else?

Best Answer

from http://nginx.org/en/docs/http/ngx_http_memcached_module.html#memcached_pass

The ngx_http_memcached_module module allows to obtain responses from a memcached 
server. The key is set in the $memcached_key variable. A response should be put 
in memcached in advance via means that are external to nginx.

in other words, nginx can only retrieve things already stored in memcache

the means that are external to nginx should most likely be your uwsgi app

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Swift

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Nginx – proxy_cookie_path not working in nginx

You need to use proxy_cookie_pathoutside of if block. proxy_cookie_path is only allowed in http, server, location. So you can use it inside a if block inside location.

Edit-1

If for some reason still need to do this. Try below config

location /tron/api/v1/ {
  error_page 418 = @xyz_cookie;

  recursive_error_pages on;
  proxy_ssl_session_reuse off;
  # End of extra settings
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

  proxy_set_header X-Forwarded-Host $host;
  proxy_set_header X-Forwarded-Server $host;

  # End of extra settings
  proxy_set_header X-Scheme $scheme;

  if ($cookie_VD_TYPE = "XYZ") {
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  }

  proxy_pass https://10.132.250.$cookie_ABC/tron/api/v1/$1$is_args$args;
}

location @xyz_cookie {
  proxy_ssl_session_reuse off;
  # End of extra settings
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

  proxy_set_header X-Forwarded-Host $host;
  proxy_set_header X-Forwarded-Server $host;

  # End of extra settings
  proxy_set_header X-Scheme $scheme;

  proxy_pass   https://10.132.250.$cookie_XYZ/tron/api/v1/$1$is_args$args;
  proxy_cookie_path      / /abc/xyz/120;
}

Read If is Evil to know more about issues with IF

Best Answer

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