Nginx 中使用 Memcached

参考配置：

server {
    location / {
        set            $memcached_key "$uri?$args";
        memcached_pass host:11211;
        error_page     404 502 504 = @fallback;
    }

    location @fallback {
        proxy_pass     http://backend;
    }
}

实际应用的配置：

#user  nobody;
worker_processes  4;

error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;
#pid        logs/nginx.pid;

worker_rlimit_nofile 65536;
worker_cpu_affinity 0001 0010 0100 1000;
events {
     worker_connections  4096;
     use epoll;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    gzip on;
    gzip_min_length  1000;
    gzip_comp_level  2;
    gzip_buffers     4 8k;   
    gzip_http_version 1.1; 
    gzip_types       text/plain application/x-javascript text/css application/xml;
		
		upstream mem_backend {
         server 10.148.37.10:22110;
    		 #server 10.148.15.91:22110;
    		 ip_hash;
  			 keepalive 2048;
		}
		
    server {
        listen       80;
        #server_name  plugin.shopal.jp;
				server_name  localhost;
        charset utf8;

        #access_log  logs/host.access.log  main;
        
				location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$ {
						root	html;
						expires 30d;
				}
				
				#location ~ .*\.(js|css)$ {
				#		root	html;
				#		expires 1d;
				#}
				
        location / {
            	root   html;
            	index  index.php;
        }

				location ~ \.php$ {
         	  if ( $query_string !~* 'key=' ){
        				proxy_pass http://127.0.0.1:8000;
        			  break;
    				}

            set $memc_cmd 'get';
        		set $memc_key $arg_key;
    				memc_pass     mem_backend;
    				default_type       application/json;
    				error_page         404 500 502 503 504 = @cache404;
        }
        
        location @cache404 {
						proxy_pass   http://127.0.0.1:8000;
						proxy_set_header        X-Real-IP $remote_addr;
    	  		proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
    	  		proxy_set_header        Host $http_host;
        }
        
        location /status {
      			set $memc_cmd stats;
     				memc_pass mem_backend;
  			}
        # redirect server error pages to the static page /50x.html
        #
        error_page  500 502 503 504  /50x.html;
        error_page  404              /404.html;
        location = /50x.html {
            root   html;
        }
        location = /404.html {
            root   html;
        }

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }

    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    server {
        listen       8000;
        server_name  localhost;
        location ~ \.php$ {
            root           html;
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  /usr/local/nginx/html$fastcgi_script_name;
            include fastcgi.conf;
        }
    }


    # HTTPS server
    #
    #server {
    #    listen       443;
    #    server_name  localhost;

    #    ssl                  on;
    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_timeout  5m;

    #    ssl_protocols  SSLv2 SSLv3 TLSv1;
    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers   on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}

把数据放到缓存服务器中：

if(empty($user_id)){
	//$uri_str = $_SERVER["REQUEST_URI"];
	$cache_key = @$_GET['key'];
    if(!empty($cache_key)){
	    $memcache1 = new Memcache;
		$memcache1->addServer('10.148.37.10', 22110);
		$memcache1->add($cache_key,$result,false,3600*24);
		
		$memcache2 = new Memcache;
		$memcache2->addServer('10.148.15.91', 22110);
		$memcache2->add($cache_key,$result,false,3600*24);
    }
}

安装组建 http://nginx.org/en/docs/http/ngx_http_memcached_module.html