nginx缓存服务器

注明：根据《实战Nginx：取代Apache的高性能Web服务器>》第九章修改,详细请参考以上这本书

 wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.20.tar.gz

 wget http://nginx.org/download/nginx-1.1.10.tar.gz

 wget http://labs.frickle.com/files/ngx_cache_purge-1.4.tar.gz

一、安装pcre

# tar zxvf pcre-8.20.tar.gz 

#  cd pcre-8.20

#  ./configure 

#  make

#  make install

二、安装nginx

tar zxvf ngx_cache_purge-1.4.tar.gz

#  tar zxvf nginx-1.1.10.tar.gz 

#  cd nginx-1.1.10

#  ./configure --user=www --group=www --add-module=../ngx_cache_purge-1.4 --prefix=/usr/local/webserver/nginx --with-http_stub_status_module --with-http_ssl_module

#  mkdir -p /data0/proxy_temp_path

#  mkdir -p /data0/proxy_cache_path

三、配置nginx

vi /usr/local/webserver/nginx/conf/nginx.conf

user www www;

worker_processes 8;

error_log /data1/logs/nginx_error.log crit;

pid /usr/local/webserver/nginx/nginx.pid;

worker_rlimit_nofile 51200;

events

{

use epoll;

worker_connections 51200;

}

http

include mime.types;

default_type application/octet-stream;

#server_names_hash_bucket_size 128k;

client_header_buffer_size 32k;

large_client_header_buffers 4 32k;

sendfile on;

keepalive_timeout 30;

tcp_nodelay on;

proxy_temp_path /data0/proxy_temp_path;

proxy_cache_path /data0/proxy_cache_path levels=1:2 keys_zone=cache_one:200m inactive=1d max_size=30G;

upstream my_server_poo {

server 202.105.182.55:80 weight=1 max_fails=2 fail_timeout=30s;

server

listen 80;

server_name 3.test.com;

location /

  proxy_set_header Host $host;

  proxy_set_header X-Forwarded-For $remote_addr;

  proxy_pass http://202.105.182.55:80/;

  proxy_set_header Accept-Encoding '';

  proxy_set_header X-Forwarded-For  $remote_addr;

  proxy_ignore_headers "Cache-Control" "Expires";

   if ( $request_method = "PURGE" ) {

        rewrite ^(.*)$ /purge$1 last;

    }

location ~* \.(gif|jpeg|png|bmp|swf|js)$

proxy_cache cache_one;

proxy_cache_valid 200 304 12h;

proxy_cache_valid 301 302 1m;

proxy_cache_valid any 1m;

proxy_cache_key $host$uri$is_args$args;

proxy_set_header Host $host;

proxy_set_header X-Forwarded-For $remote_addr;

proxy_pass http://my_server_pool;

error_page 405 =200 /purge$1;

location ~ /purge(/.*)

allow 127.0.0.1;

allow 192.168.0.0/20;

deny   all;

proxy_cache_purge cache_one $host$1$is_args$args;

access_log off;

三优化

vi /etc/sysctl.conf   添加以下:

net.ipv4.tcp_max_syn_backlog = 65536

net.core.netdev_max_backlog =  32768

net.core.somaxconn = 32768

net.core.wmem_default = 8388608

net.core.rmem_default = 8388608

net.core.rmem_max = 16777216

net.core.wmem_max = 16777216

net.ipv4.tcp_timestamps = 0

net.ipv4.tcp_synack_retries = 2

net.ipv4.tcp_syn_retries = 2

net.ipv4.tcp_tw_recycle = 1

#net.ipv4.tcp_tw_len = 1

net.ipv4.tcp_tw_reuse = 1

net.ipv4.tcp_mem = 94500000 915000000 927000000

net.ipv4.tcp_max_orphans = 3276800

#net.ipv4.tcp_fin_timeout = 30

#net.ipv4.tcp_keepalive_time = 120

net.ipv4.ip_local_port_range = 1024  65535