标签：name wsgi ptime clu array load install length prefix
Memc nginx+srcache nginx+memcached构建透明的动态页面缓存
一．原理
一种高效的缓存策略是Nginx直接访问memcache，并用$uri和$args等Nginx内置变量设定缓存key规则，这样，当缓存命中 时，Nginx可以跳过通过fastcgi和PHP通信的过程，直接从memcache中获取数据并返回。memc-nginx和srcache- nginx正是利用这种策略提高了缓存的效率。下图是这种高效缓存策略的示意图（当memcache命中时）。
Openresty/memc-nginx-module
二．配置安装
[root@server1 ~]# tar zxf openresty-1.11.2.3.tar.gz
[root@server1 ~]# tar zxf nginx_upstream_check_module-0.3.0.tar.gz
[root@server1 ~]# tar zxf ngx_cache_purge-2.3.tar.gz
[root@server1 ~]# cd openresty-1.11.2.3
[root@server1 openresty-1.11.2.3]# ./configure --prefix=/usr/local/openresty --with-http_realip_module --with-pcre --with-luajit --add-module=/root/ngx_cache_purge-2.3/ --add-module=/root/nginx_upstream_check_module-0.3.0/ -j2
nginx http client request body temporary files: "client_body_temp"
nginx http proxy temporary files: "proxy_temp"
nginx http fastcgi temporary files: "fastcgi_temp"
nginx http uwsgi temporary files: "uwsgi_temp"
nginx http scgi temporary files: "scgi_temp"
cd ../..
Type the following commands to build and install:
gmake
gmake install
[root@server1 openresty-1.11.2.3]# gmake
[root@server1 openresty-1.11.2.3]# gmake install
mkdir -p /usr/local/openresty/site/lualib /usr/local/openresty/site/pod /usr/local/openresty/site/manifest
ln -sf /usr/local/openresty/nginx/sbin/nginx /usr/local/openresty/bin/openresty
[root@server1 ~]# /usr/local/openresty/nginx/sbin/nginx -V ##查看nginx版本，测试是否安装成功
nginx version: openresty/1.11.2.3
built by gcc 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC)
built with OpenSSL 1.0.1e-fips 11 Feb 2013
TLS SNI support enabled
configure arguments: --prefix=/usr/local/openresty/nginx --with-cc-opt=-O2 --add-module=../ngx_devel_kit-0.3.0 --add-module=../echo-nginx-module-0.60 --add-module=../xss-nginx-module-0.05 --add-module=../ngx_coolkit-0.2rc3 --add-module=../set-misc-nginx-module-0.31 --add-module=../form-input-nginx-module-0.12 --add-module=../encrypted-session-nginx-module-0.06 --add-module=../srcache-nginx-module-0.31 --add-module=../ngx_lua-0.10.8 --add-module=../ngx_lua_upstream-0.06 --add-module=../headers-more-nginx-module-0.32 --add-module=../array-var-nginx-module-0.05 --add-module=../memc-nginx-module-0.18 --add-module=../redis2-nginx-module-0.14 --add-module=../redis-nginx-module-0.3.7 --add-module=../rds-json-nginx-module-0.14 --add-module=../rds-csv-nginx-module-0.07 --with-ld-opt=-Wl,-rpath,/usr/local/openresty/luajit/lib --with-http_realip_module --with-pcre --add-module=/root/ngx_cache_purge-2.3 --add-module=/root/nginx_upstream_check_module-0.3.0 --with-http_ssl_module
[root@server1 bin]# nginx -t
nginx: the configuration file /usr/local/openresty/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/openresty/nginx/conf/nginx.conf test is successful
[root@server1 bin]# nginx -s reload
三．编写配置文件
[root@server1 memc-nginx-module-0.18]# vim /usr/local/openresty/nginx/conf/nginx.conf
http {
upstream memcacheds {
server 172.25.60.111:22222;
}
server {
listen 8090;
server_name test.ttlsa.com;
index index.html index.htm index.php;
root /data/wwwroot/www.ttlsa.com/webroot;
location /memc {
internal;
memc_connect_timeout 100ms;
memc_send_timeout 100ms;
memc_read_timeout 100ms;
set $memc_key $query_string;
set $memc_exptime 120;
memc_pass memcacheds;
}
location ~ .*\.php?$
{
if ($uri ~ /ttlsa/){
set $ttlsa_key $request_uri;
srcache_fetch GET /memc $ttlsa_key;
srcache_store PUT /memc $ttlsa_key;
add_header X-Cached-From $srcache_fetch_status;
add_header X-Cached-Store $srcache_store_status;
}
include fastcgi_params;
fastcgi_pass 127.0.0.1:10081;
fastcgi_index index.php;
fastcgi_connect_timeout 60;
fastcgi_send_timeout 180;
fastcgi_read_timeout 180;
fastcgi_buffer_size 128k;
fastcgi_buffers 4 256k;
fastcgi_busy_buffers_size 256k;
fastcgi_temp_file_write_size 256k;
fastcgi_intercept_errors on;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}
}
}
四．测试
[root@server1 ~]# curl -I 172.25.60.111
HTTP/1.1 404 westos cache
Server: Varnish
Content-Type: text/html; charset=utf-8
Retry-After: 5
Content-Length: 398
Accept-Ranges: bytes
Date: Fri, 26 May 2017 16:52:09 GMT
X-Varnish: 2131058511
Age: 0
Via: 1.1 varnish
Connection: close
标签：name wsgi ptime clu array load install length prefix
原文地址：http://www.cnblogs.com/yangying2017/p/6911108.html
