PURGE模块下载http://labs.frickle.com/files/ngx_cache_purge-1.2.tar.gz
tar zxvf ngx_cache_purge-1.2.tar.gz
其他模块安装详见 nginx安装与配置
在nginx目录下编译
#./configure --add-module=../ngx_cache_purge-1.2 --with-http_realip_module --with-http_gzip_static_module --with-http_stub_status_module --with-http_ssl_module --with-pcre=../pcre-8.10 --with-openssl=../openssl-1.0.0 --with-zlib=../zlib-1.2.5
#make
#make install
安装完成,进入/usr/local/nginx/conf
vi nginx.conf
user nobody nobody; worker_processes 4; error_log logs/nginx_error.log crit; pid logs/nginx.pid; #Specifies the value for maximum file descriptors that can be opened by this process. worker_rlimit_nofile 65535; events { use epoll; worker_connections 65535; } http { include mime.types; default_type application/octet-stream; #charset utf-8; server_names_hash_bucket_size 128; client_header_buffer_size 32k; large_client_header_buffers 4 32k; client_max_body_size 300m; sendfile on; tcp_nopush on; keepalive_timeout 60; tcp_nodelay on; client_body_buffer_size 512k; proxy_connect_timeout 5; proxy_read_timeout 60; proxy_send_timeout 5; proxy_buffer_size 16k; proxy_buffers 4 64k; proxy_busy_buffers_size 128k; proxy_temp_file_write_size 128k; gzip on; gzip_min_length 1k; gzip_buffers 4 16k; gzip_http_version 1.1; gzip_comp_level 2; gzip_types text/plain application/x-javascript text/css application/xml; gzip_vary on; #注:proxy_temp_path和proxy_cache_path指定的路径必须在同一分区 proxy_temp_path /opt/data/proxy_temp_dir; #设置Web缓存区名称为cache_one,内存缓存空间大小为200MB,1天没有被访问的内容自动清除,硬盘缓存空间大小为30GB。 proxy_cache_path /opt/data/proxy_cache_dir levels=1:2 keys_zone=cache_one:200m inactive=1d max_size=5g; upstream backend_server { server 127.0.0.1:8080 weight=1 max_fails=2 fail_timeout=30s; } server { listen 80; server_name www.domain.com; index index.html index.htm; root /opt/data/www; location / { #如果后端的服务器返回502、504、执行超时等错误,自动将请求转发到upstream负载均衡池中的另一台服务器,实现故障转移。 proxy_next_upstream http_502 http_504 error timeout invalid_header; proxy_cache cache_one; #对不同的HTTP状态码设置不同的缓存时间 proxy_cache_valid 200 304 12h; #以域名、URI、参数组合成Web缓存的Key值,Nginx根据Key值哈希,存储缓存内容到二级缓存目录内 proxy_cache_key $host$uri$is_args$args; proxy_set_header Host $host; proxy_set_header X-Forwarded-For $remote_addr; proxy_pass http://backend_server; expires 1d; } #用于清除缓存,假设一个URL为http://192.168.6.5/test.txt,通过访问http://192.168.6.5/purge/test.txt就可以清除该URL的缓存。 location ~ /purge(/.*) { #设置只允许指定的IP或IP段才可以清除URL缓存。 allow 127.0.0.1; allow 192.168.6.0/24; deny all; proxy_cache_purge cache_one $host$1$is_args$args; } #扩展名以.jspa .jsp结尾的动态应用程序不缓存. location ~ .*\.(jspa|jsp)?$ { proxy_set_header Host $host; proxy_set_header X-Forwarded-For $remote_addr; proxy_pass http://backend_server; } access_log off; } }
启动nginx
#/usr/local/nginx/sbin/nginx
如果已经启动,导入配置文件如下
#ps aux | grep nginx
root 22891 0.0 0.0 208976 1832 ? Ss 11:47 0:00 nginx: master process ./nginx
nobody 23388 0.0 0.3 221520 13344 ? S 13:47 0:00 nginx: worker process
nobody 23389 0.0 0.3 221880 13868 ? S 13:47 0:00 nginx: worker process
nobody 23390 0.0 0.3 221520 13344 ? S 13:47 0:00 nginx: worker process
nobody 23391 0.0 0.3 221520 13344 ? S 13:47 0:00 nginx: worker process
nobody 23392 0.0 0.0 208976 840 ? S 13:47 0:00 nginx: cache manager process
root 27404 0.1 0.4 109648 16936 ? S 15:24 0:00 gedit file:///usr/local/nginx/conf/nginx.conf
root 27414 0.0 0.0 3236 752 pts/1 S+ 15:29 0:00 grep nginx
#kill -hup 22891
访问 www.domain.com/index.html
在缓存文件夹会产生一些目录
清楚
www.domain.com/purge/index.html
显示Successful purge