向东博客 专注WEB应用 构架之美 --- 构架之美，在于尽态极妍 | 应用之美，在于药到病除|赢在IT，Playin' with IT,Focus on Killer Application,Marketing Meets Technology.

来自：https://www.cnblogs.com/Eivll0m/p/4921829.html

一）他怎么知道缓存在那个目录呢？
You can add a line in wp-config.php like below:
define( 'RT_WP_NGINX_HELPER_CACHE_PATH','/var/run/nginx-cache');

root@101.200.228.135:/data/htdocs/jackxiang.com# grep -r "RT_WP_NGINX_HELPER_CACHE_PATH" ./
./wp-content/plugins/nginx-helper/nginx-helper.php:        define('RT_WP_NGINX_HELPER_CACHE_PATH', '/var/run/nginx-cache');
./wp-content/plugins/nginx-helper/purger.php:                   if (!defined('RT_WP_NGINX_HELPER_CACHE_PATH')) {
./wp-content/plugins/nginx-helper/readme.txt:`define('RT_WP_NGINX_HELPER_CACHE_PATH','/var/run/nginx-cache/');`

vim打开上面文件替换：
%s/\/var\/run\/nginx-cache/\/data\/cache\/ngx_fcgi_cache2/g
二）总配置：/conf/nginx.conf
http     {         fastcgi_cache_path /data/cache/ngx_fcgi_cache  levels=1:2  keys_zone=ngx_fcgi_cache:128m inactive=1d max_size=1g;         #128m为内存占用  1g为硬盘最大占用空间              fastcgi_cache_path /data/cache/ngx_fcgi_cache2  levels=1:2  keys_zone=ngx_fcgi_cache2:128m inactive=1d max_size=1g;

三）分配置：/conf/vhost/jackxiang.conf
set $no_cache 0;         server_name  jackxiang.com www.jackxiang.com;         index index.html index.htm index.php;         root  /data/htdocs/jackxiang.com;         autoindex off;         autoindex_exact_size off;         autoindex_localtime on;         # 不缓存POST操作         if ($request_method = POST) {             set $no_cache 1;         }         if ($query_string != "") {             set $no_cache 1;         }         # 不缓存后台         if ($request_uri ~* "(/wp-admin/|/xmlrpc.php|/wp-(app|cron|login|register|mail).php|wp-.*.php|/feed/|index.php|wp-comments-popup.php|wp-links-opml.php|wp-locations.php|sitemap(_index)?.xml|[a-z0-9_-]+-sitemap([0-9]+)?.xml)") {             set $no_cache 1;         }         # 已登录的不缓存（防止留言串号）         if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_no_cache|wordpress_logged_in") {             set $no_cache 1;         }         location / {             try_files $uri $uri/ /index.php?$args;         }         location ~ .*\.(php|php5)?$         {         fastcgi_pass   unix:/data/runsock/hhvm.sock;         fastcgi_index  index.php;         fastcgi_param  SCRIPT_FILENAME $document_root$fastcgi_script_name;         include        fastcgi_params;         #no_cache 的值决定是否需要cache下来。         fastcgi_cache_bypass $no_cache;         fastcgi_no_cache $no_cache;         fastcgi_cache ngx_fcgi_cache2;    #表示开启FastCGI缓存并为其指定一个名称。         fastcgi_cache_valid 200 302 301 1h;     #缓存http状态200 302 301 1小时                                                                                                                                             fastcgi_cache_valid any 1m; #其他应答代码缓存1分钟。404         fastcgi_cache_min_uses 1;   #设置链接请求几次就被缓存。         fastcgi_cache_use_stale error timeout invalid_header http_500;    #定义哪些情况下用过期缓存         #fastcgi_cache_key $request_method://$host$request_uri;  #注意一定要加上$request_method作为cache key，否则如果HEAD类型的先请求会导致后面的GET请求返回为空         fastcgi_cache_key  "$scheme$request_method$host$request_uri";         }


四）实践一次刷一下，没有问题，文件没了，验证成功：
（1）生成缓存 （2）查看生成的文件 （3）清掉：wordpress的后台=》JACK船长的航海日志---杰克·向。 新建=》Purge Cache 清一次后， （4）果然没有了，验证如下：
root@101.200.228.135:/data/cache/ngx_fcgi_cache2# find . -type f
./4/10/7b85869389993df60d6bab0921e13104
./b/b7/e9d47871f114593bc9ef4ce6deb38b7b
./6/e8/26e4e882b757184cbc3654dea8d7ce86
root@101.200.228.135:/data/cache/ngx_fcgi_cache2# find . -type f
root@101.200.228.135:/data/cache/ngx_fcgi_cache2#
参考自：https://rtcamp.com/wordpress-nginx/tutorials/single-site/fastcgi-cache-with-purging/

作者：jackxiang@向东博客 专注WEB应用 构架之美 --- 构架之美，在于尽态极妍 | 应用之美，在于药到病除
地址：http://jackxiang.com/post/8028/
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