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upstream

• 实例:

  user  nobody;# 工作进程的属主
  worker_processes  4;# 工作进程数，一般与 CPU 核数等同
  
  #error_log  logs/error.log;
  #error_log  logs/error.log  notice;
  #error_log  logs/error.log  info;
  
  #pid        logs/nginx.pid;
  
  events {
     use epoll;#Linux 下性能最好的 event 模式
     worker_connections  2048;# 每个工作进程允许最大的同时连接数
  }
  
  http {
     include       mime.types;
     default_type  application/octet-stream;
  
     #log_format  main  '$remote_addr - $remote_user [$time_local] $request '
     #                  '"$status" $body_bytes_sent "$http_referer" '
     #                  '"$http_user_agent" "$http_x_forwarded_for"';
  
     #access_log  off;
     access_log  logs/access.log;# 日志文件名
  
     sendfile        on;
     #tcp_nopush     on;
     tcp_nodelay     on;
  
     keepalive_timeout  65;
  
     include             gzip.conf;
  
     # 集群中的所有后台服务器的配置信息
     upstream tomcats {
        server 192.168.0.11:8080 weight=10;
        server 192.168.0.11:8081 weight=10;
        server 192.168.0.12:8080 weight=10;
        server 192.168.0.12:8081 weight=10;
        server 192.168.0.13:8080 weight=10;
        server 192.168.0.13:8081 weight=10;
     }
  
     server {
         listen       80;#HTTP 的端口
         server_name  localhost;
  
         charset utf-8;
  
         #access_log  logs/host.access.log  main;
  
         location ~ ^/NginxStatus/ {
             stub_status on; #Nginx 状态监控配置
             access_log off;
         }
  
         location ~ ^/(WEB-INF)/ {
             deny all;
          }
  
          location ~ \.(htm|html|asp|php|gif|jpg|jpeg|png|bmp|ico|rar|css|js|
               zip|java|jar|txt|flv|swf|mid|doc|ppt|xls|pdf|txt|mp3|wma)$ {
              root /opt/webapp;
              expires 24h;
         }
  
  
         error_page 404 /html/404.html;
  
         # redirect server error pages to the static page /50x.html
         #
         error_page 502 503 /html/502.html;
         error_page 500 504 /50x.html;
         location = /50x.html {
             root   html;
         }
     }
  }
  

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