N年前Nginx 负载均衡在金山逍遥网中的应用

在金山逍遥网中，前端负载均衡服务器采用的是Nginx，两台Nginx服务器为一组，承担多种类型的负载均衡服务，两台负载均衡服务器均处于活动状态，各自绑定一个公网虚拟IP，作为负载均衡服务器，当其中一个发生故障时，另一台接管发生故障服务器的虚拟IP。配置nginx.conf代码如下

代码：

user www www;
work_processes 8;
error_log /data1/logs/nginx_error.log crit;
pid /usr/local/webserver/nginx/nginx.pid;

#specifies the value for maximum file descriptors that can be opened by this process worker_rlimit_nofile 51200

events
{
    use epoll;
    worker_connections 51200;
}

http
{
     include    mine.types;
     default_type  application/octet-strem;

     #charset utf-8

     server_names_hash_bucket_size 128k;
     client_header_buffer_size  32k;
     large_client_header_buffers 4 32k;

     sendfile on;
     #tcp_nopush on;

     keepalive_timeout 30;
     tcp_nodelay on;

     fastcgi_connect_timeout  300;
     fastcgi_send_timeout 300;
     fastcgi_read_timeout 300;
     fastcgi_buffer_size 64k;
     fastcgi_buffers 4 64k;
     fastcgi_busy_buffers_size  128k;
     fastcgi_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;

    limit_zone anti_attack $binary_remote_addr 10m;

    #允许客户端请求的最大单文件字节数
    client_max_body_size 300m;

    #缓冲区代理缓冲用户端的最大字节数 可以理解为现存到本地再传给用户
    client_body_size 128k;

    #跟后端服务器连接的超时时间_发起握手等候响应超时时间
    proxy_connect_time 600;

    #连接成功后_等待后端服务器响应时间_其实已经进入后端的派对等候处理
    proxy_read_timeout  600;

    #后端回传时间_规定时间内传完所有数据
    proxy_send_timeout  600;

    #代理请求缓存区，保存用户的头信息以供Nginx进行规则处理
    proxy_buffer_size  16k;
    proxy_buffers   4  32k;
    proxy_busy_buffers_size  64k;
    proxy_temp_file_write_size 64k;

    #缓存
    proxy_temp_path /data2/proxy_temp_path;
    proxy_cache_path  /data2/proxy_cache_path levels=1:2 keys_zone=cache_one:200m inactive=1d max_size=5;

    upstream myserver_pool{
        server xx.xx.xx.1:80 weight=1 max_fails=2 fail_timeout=30s;
        server xx.xx.xx.2:80 weight=1 max_fails=2 fail_timeout=30s;
        server xx.xx.xx.3:80 weight=1 max_fails=2 fail_timeout=30s;
    }

    upstream php_server_pool{
        server xx.xx.xx.4:80 weight=1 max_fails=2 fail_timeout=30s;
        server xx.xx.xx.5:80 weight=1 max_fails=2 fail_timeout=30s;
        server xx.xx.xx.6:80 weight=1 max_fails=2 fail_timeout=30s;
        server xx.xx.xx.7:80 weight=1 max_fails=2 fail_timeout=30s;
        server xx.xx.xx.8:80 weight=1 max_fails=2 fail_timeout=30s;
    }

    upstream bbs_server_pool{
        ip=hash;
        server xx.xx.xx.9:80 max_fails=2 fail_timeout=30s;
        server xx.xx.xx.10:80 max_fails=2 fail_timeout=30s;
        server xx.xx.xx.11:80 max_fails=2 fail_timeout=30s;
        server xx.xx.xx.12:80 max_fails=2 fail_timeout=30s;
    }

    upstream cms_server_pool{
        server xx.xx.xx.13:80 weight=1 max_fails=2 fail_timeout=30s;
        server xx.xx.xx.14:80 weight=1 max_fails=2 fail_timeout=30s;
    }

    upstream pic_server_pool{
        server xx.xx.xx.15:80 weight=1 max_fails=2 fail_timeout=30s;
        server xx.xx.xx.16:80 weight=1 max_fails=2 fail_timeout=30s;
    }

    upstream xoyohimsg_server_pool{
        server xx.xx.xx.17:3245;
        server xx.xx.xx.18:3245 down;
    }

    #xoyo.com域名调转到www.xoyo.com

    server
    {
        listen 80;
        server_name xiyo.com;

        rewrite ^/(.*) http:xoyo.com/ permanent;

        acces_log /data1/logs/xoyo.com_access.log;
    }

    #用户中心HTTP/SSL加密浏览
    server
    {
        listen 443;
        server_name my.xoyo.com

        ssl on;
        ssl_cretificate  my.xoyo.com.crt;
        ssl_cretificate_key my.xoyo.com.key;

    location /
    {
        proxy_pass http://php_server_pool;         proxy_set_header Host my.xoyo.com;
        proxy_set_header X-Forward-For $remote_addr;
    }
    access_log /data1/logs/my.xoyo.com_access.log;

    }

    #图片服务器，不同的路径访问后端不同的服务器
    server
    {
        listen 80;
        server_name pic.xoyo.com;

        location /cms/
        {
        proxy_pass http://cms_server_pool;         proxy_set_header Host pic.xoyo.com;
        proxy_set_header X-Forward-For $remote_addr;
        }
        access_log /data1/logs/pic.xoyo.com_access.log;
    }

    #音频电台文件下载，进行简单防盗链
    #limit_zone media %binary_remote_addr 10m;
    server
    {
        listen 80;
        server_name media.xoyo.com;

        location /
        {
        proxy_pass http://cms_server_pool;         proxy_set_header Host $host;
        proxy_set_header X-Forward-For $remote_addr;

        valid_reference nine blocked www.xoyo.com *.xoyo.com  www.kingsoft.com  *.kingsoft.com  www.kingsoft.cn  *.kingsoft.cn;
        if ($invalid_referers){
            rewrite ^/ http://www.xoyo.com;         }
        }
        access_log /data1/logs/media.xoyo.com_access.log;
    }
    #“逍遥有聊”WebIM产品的负载均衡，反向代理两种HTTP服务器
    server
    {
        listen  80;
        server_name hi.xoyo.com;
    #反向代理一款定制开发的高性能消息队列HTTP服务器
    location /recmessage.xoyo
    {
        proxy_pass http://xoyohimsg_server_pool;         proxy_set_header Host $host;
    }

    location /
    {
        proxy_pass http://php_server_pool;         proxy_set_header Host $host;
        proxy_set_header X-Forward-For $remote_addr;

    }

    access_log /data1/logs/hi.xoyo.com_access.log;

    #论坛负载均衡并对图片、Flash、JavaScript、CSS、静态HTML进行Web缓存
    server {
    listen   80;
    server_name bbs.xoyo.com *.bbs.xoyo.com bbs.xoyo.kingsoft.com;

    location /
    {
        proxy_pass http://bbs_server_pool;         proxy_set_header Host $host;
        proxy_set_header X-Forward-For $remote_addr;

    }

    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|js|css|html|shtml)$
    {
        proxy_cache  cache_one;
        proxy_cache_valid  200 10m;
        proxy_cache_valid  304 1m;
        proxy_cache_valid  301 302 ih;
        proxy_cache_valid  any 1m;
        proxy_cache_key $host$uri$is_args$args;
        proxy_set_header  Host  $host;
        proxy_set_header X-Forward-For $remote_addr;
        proxy_pass http://bbs_server_pool; 
    }
    log_format bbs '$remote_addr $host  $remote_user [$time_local] "$request"'
    '"$status" $body_bytes_sent "$http_referer"'
    '"$http_user_agent"   "$http_x_forwarded_for"';
access_log /data1/logs/bbs.xoyo.com_access.log bbs;

}
    #论坛附件反向代理，限制下载速度为256k/秒
    server{
        listen 80;
        server_name  att03.bbs.xoyo.com  att02.bbs.xoyo.com  att01.bbs.xoyo.com;

    location /{
        #限制下载速度为256k/s
        limit_rate 256k;
        proxy_pass http://xx.xx.xx.19;         proxy_set_header Host $host;
        proxy_set_header X-Forward-For $remote_addr;
    }
    access_log off;
}

#逍遥江湖SNS社区，管理后台定位到一台服务器上，并对图片,flash,javascript,CSS进行web缓存

    server
    {
        listen  80;
        server_name  hu.xoyo.com  *.hu.xoyo.com;

        location /
        {

        proxy_pass http://php_server_pool;         proxy_set_header Host $host;
        proxy_set_header X-Forward-For $remote_addr;
        }
    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|js|css)$
    {
        proxy_cache  cache_one;
        proxy_cache_valid  200 10m;
        proxy_cache_valid  304 1m;
        proxy_cache_valid  301 302 ih;
        proxy_cache_valid  any 1m;
        proxy_cache_key $host$uri$is_args$args;
        proxy_set_header  Host  $host;
        proxy_set_header X-Forward-For $remote_addr;
        proxy_pass http://php_server_pool;     }

    location ~ ^/admincp.php
    {
        proxy_set_header  Host  $host;
        proxy_set_header X-Forward-For $remote_addr;
        proxy_pass http://xx.xx.xx.4; 
    }
    access_log /data1/logs/hu.xoyo.com_accsee.log;
    }
}