PURGE子產品下載下傳http://labs.frickle.com/files/ngx_cache_purge-1.2.tar.gz
tar zxvf ngx_cache_purge-1.2.tar.gz
其他子產品安裝詳見 nginx安裝與配置
在nginx目錄下編譯
#./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
安裝完成,進入/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指定的路徑必須在同一分區
proxy_temp_path /opt/data/proxy_temp_dir;
#設定Web緩存區名稱為cache_one,記憶體緩存空間大小為200MB,1天沒有被通路的内容自動清除,硬碟緩存空間大小為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 /
{
#如果後端的伺服器傳回502、504、執行逾時等錯誤,自動将請求轉發到upstream負載均衡池中的另一台伺服器,實作故障轉移。
proxy_next_upstream http_502 http_504 error timeout invalid_header;
proxy_cache cache_one;
#對不同的HTTP狀态碼設定不同的緩存時間
proxy_cache_valid 200 304 12h;
#以域名、URI、參數組合成Web緩存的Key值,Nginx根據Key值哈希,存儲緩存内容到二級緩存目錄内
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;
}
#用于清除緩存,假設一個URL為http://192.168.6.5/test.txt,通過通路http://192.168.6.5/purge/test.txt就可以清除該URL的緩存。
location ~ /purge(/.*)
{
#設定隻允許指定的IP或IP段才可以清除URL緩存。
allow 127.0.0.1;
allow 192.168.6.0/24;
deny all;
proxy_cache_purge cache_one $host$1$is_args$args;
}
#擴充名以.jspa .jsp結尾的動态應用程式不緩存.
location ~ .*\.(jspa|jsp)?$
{
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_pass http://backend_server;
}
access_log off;
}
}
啟動nginx
#/usr/local/nginx/sbin/nginx
如果已經啟動,導入配置檔案如下
#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
通路 www.domain.com/index.html
在緩存檔案夾會産生一些目錄
清楚
www.domain.com/purge/index.html
顯示Successful purge