小林博客Memcached是个好东西 它可以 由于页面是缓存在内存里，所以减少了系统的I/O操作。可以直接利用Memcached的分布式特性。可以直接利用缓存的过期时间，方便对页面的过期时间进行处理。
网上找了很多教程 都不适用于wordpress 于是我经网上的脚本 自己改了一个
注意事项！！ memcached是多核处理的 如果你是单核的服务器 在配上这个 会相当的卡 甚至会宕机 我之前出过了很多问题 所以我现在仅能把教程写出来 而我用了redis /哭;w;
原理
Nginx内置了Memcached模块memcached_module
它可以从memcached中读取内容后直接输出，后续的请求不再经过如php-fpm、django应用程序处理，大大的提升动态页面的速度。nginx只负责从memcached中读取数据，要往memcached写入数据还得需要后台的应用程序来完成，主动的将要缓存的页面缓存到memcached中，然后通过404重定向到后端去处理的。
memcached的key可以通过memcached_key变量来设置，如以$uri。如果命中，那么直接输出内容，没有命中就意味着nginx需要从应用程序请求页面。同时，我们还希望该应用程序将键值对写入到memcached，以便下一个请求可以直接从memcached获取。
如果键值不存在，nginx将报告not found错误。最好的方法是使用error_page指定和location请求处理。同时包含"Bad
Gateway"错误和"Gateway Timeout"错误，如：error_page 404 502 504 = @app;。
WordPress应用实例
user www www;
worker_processes auto;
error_log /www/wwwlogs/nginx_error.log crit;
pid /www/server/nginx/logs/nginx.pid;
worker_rlimit_nofile 51200; events
{
use epoll;
worker_connections 51200;
multi_accept on;
}
http
{
include mime.types;
#include luawaf.conf;
include proxy.conf;
default_type application/octet-stream;
server_names_hash_bucket_size 512;
client_header_buffer_size 32k;
large_client_header_buffers 4 32k;
client_max_body_size 50m;
sendfile on;
tcp_nopush on;
keepalive_timeout 75s;
keepalive_requests 10000;
tcp_nodelay on;
fastcgi_connect_timeout 300;
fastcgi_send_timeout 300;
fastcgi_read_timeout 300;
fastcgi_buffer_size 64k;
fastcgi_buffers 4 64k;
fastcgi_busy_buffers_size 128k;
fastcgi_temp_file_write_size 512k;
fastcgi_intercept_errors on;
gzip on;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_http_version 1.1;
gzip_comp_level 3;
gzip_types text/plain application/javascript application/x-javascript text/javascript text/css text/xml application/xml image/jpeg image/gif image/png application/x-httpd-php;
gzip_vary on;
gzip_proxied expired no-cache no-store private auth;
gzip_disable "MSIE [1-6].";
limit_conn_zone $binary_remote_addr zone=perip:10m;
limit_conn_zone $server_name zone=perserver:10m;
server_tokens off;
access_log off;
#memcache servers load balanced
upstream memcached {
server 127.0.0.1:11211 weight=5 max_fails=3 fail_timeout=30s;
keepalive 1024;
}
#fastcgi - little load balancer
upstream phpbackend{
server 127.0.0.1:9000 weight=5 max_fails=5 fail_timeout=30s;
}
server {
listen 80;
root /www/server/wwwroot;
server_name www.bt.cn;
index index.html index.htm index.php;
include enable-php.conf;
client_body_timeout 1460;
client_header_timeout 1460;
send_timeout 1460;
client_max_body_size 10m;
keepalive_timeout 1300;
location /app/ { deny all; }
location /includes/ { deny all; }
location /lib/ { deny all; }
location /media/downloadable/ { deny all; }
location /pkginfo/ { deny all; }
location /report/config.xml { deny all; }
location /var/ { deny all; }
location ~* .(jpg|png|gif|css|js|swf|flv|ico)$ {
expires max;
tcp_nodelay off;
tcp_nopush on;
}
location / {
try_files $uri $uri/ @handler;
expires 30d;
}
location @handler {
rewrite / /index.php;
}
location ~ .php$ {
if (!-e $request_filename) {
rewrite / /index.php last;
}
expires off; ## Do not cache dynamic content
default_type text/html; charset utf-8;
if ($request_method = GET) {
set $memcached_key $request_uri;
memcached_pass memcached;
error_page 404 502 = @cache_miss;
add_header x-header-memcached true;
}
if ($request_method != GET) {
fastcgi_pass phpbackend;
}
}
location @cache_miss {
# are we using a reverse proxy?
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;
proxy_redirect off;
proxy_max_temp_file_size 0;
#configure fastcgi
fastcgi_pass 127.0.0.1:9000;
fastcgi_send_timeout 5m;
fastcgi_read_timeout 5m;
fastcgi_connect_timeout 5m;
fastcgi_buffer_size 256k;
fastcgi_buffers 4 512k;
fastcgi_busy_buffers_size 768k;
fastcgi_param PHP_VALUE "memory_limit = 32M";
fastcgi_param PHP_VALUE "max_execution_time = 18000";
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
location ~ /. {
deny all;
}
}
}
宝塔面板
首先在nginx总配置中连接memcached 在http{ }字段中添加
#memcache servers load balanced
upstream memcached {
server 127.0.0.1:11211 weight=5 max_fails=3 fail_timeout=30s;
keepalive 1024;
}
#fastcgi - little load balancer
upstream phpbackend{
server 127.0.0.1:9000 weight=5 max_fails=5 fail_timeout=30s;
}
然后在网站中添加配置
网站-你的网站-设置-配置文件中 的 最后一个“}”前添加
client_body_timeout 1460;
client_header_timeout 1460;
send_timeout 1460;
client_max_body_size 10m;
keepalive_timeout 1300;
location /app/ { deny all; }
location /includes/ { deny all; }
location /lib/ { deny all; }
location /media/downloadable/ { deny all; }
location /pkginfo/ { deny all; }
location /report/config.xml { deny all; }
location /var/ { deny all; }
location ~* .(jpg|png|gif|css|js|swf|flv|ico)$ {
expires max;
tcp_nodelay off;
tcp_nopush on;
}
location / {
try_files $uri $uri/ @handler;
expires 30d;
}
location @handler {
rewrite / /index.php;
}
location ~ .php$ {
if (!-e $request_filename) {
rewrite / /index.php last;
}
expires off;
default_type text/html; charset utf-8;
if ($request_method = GET) {
set $memcached_key $request_uri;
memcached_pass memcached;
error_page 404 502 = @cache_miss;
add_header x-header-memcached true;
}
if ($request_method != GET) {
fastcgi_pass phpbackend;
}
}
location @cache_miss {
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;
proxy_redirect off;
proxy_max_temp_file_size 0;
fastcgi_pass 127.0.0.1:9000;
fastcgi_send_timeout 5m;
fastcgi_read_timeout 5m;
fastcgi_connect_timeout 5m;
fastcgi_buffer_size 128k;
fastcgi_buffers 4 256k;
fastcgi_busy_buffers_size 512k;
fastcgi_param PHP_VALUE "memory_limit = 32M";
fastcgi_param PHP_VALUE "max_execution_time = 18000";
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
location ~ /. {
deny all;
}
说明
这个是我改过的版本 理应宝塔面板下的Wordpress都可以用
如果提示你 什么什么错误 那你应该检查一下 你的Nginx刚开始时是否是 编译安装方法 如果你是极速安装的方法 请重装成编译安装
