#user nobody;
worker_processes 8;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
#Specifies the value for maximum file descriptors that can be opened by thisprocess.
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/plainapplication/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 /data02/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5GB。
proxy_cache_path /data02/proxy_cache_dir levels=1:2 keys_zone=cache_one:200m inactive=1d max_size=5g;
log_format cache ‘***$time_local ‘
‘$upstream_cache_status ‘
‘Cache-Control: $upstream_http_cache_control ‘
‘Expires: $upstream_http_expires ‘
‘"$request" ($status) ‘
‘"$http_user_agent" ‘; #定义日志格式(此日志格式可以显示hit miss等,显示缓存是否被击中,老版本默认可以,但是新版本,发现需要加上这个)
server #此处为缓存服务器
{
listen 8089;
server_name SPIDER.YKBDAS;
location /
{
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 $remote_addr;
proxy_pass http://172.33.11.7:8080; #此处跳转到真实的图片服务器
access_log /home/spider/spider_nginx/nginx/logs/cache.log cache; #使用这个日志格式
expires 1d;
}
#用于清除缓存,假设一个URL为http://192.168.8.42/test.txt,通过访问http://192.168.8.42/purge/test.txt就可以清除该URL的缓存。
location ~ /purge(/.*)
{
#设置只允许指定的IP或IP段才可以清除URL缓存。
allow 127.0.0.1;
deny all;
#proxy_cache_purge cache_one$host$1$is_args$args;
}
#扩展名以.php、.jsp、.cgi结尾的动态应用程序不缓存。
location ~ .*\.(php|jsp|cgi)?$
{
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
}
access_log off;
}
#真实的图片服务器
server
{
listen 8080;
server_name SPIDER.YKBDAS;
location /
{
root /data02/spider;
}
access_log /home/spider/spider_nginx/nginx/logs/nginx_access.log;
}
}