使用 Nginx + Tomcat 搭建负载均衡

  1 #user  nobody;
  2 worker_processes  1;    # 工作进程的个数，一般与计算机的cpu核数一致  
  3 
  4 #error_log  logs/error.log;
  5 #error_log  logs/error.log  notice;
  6 #error_log  logs/error.log  info;
  7 
  8 #pid        logs/nginx.pid;
  9 
 10 
 11 events {
 12     worker_connections  1024;    # 单个进程最大连接数（最大连接数 = 连接数 * 进程数）
 13 }
 14 
 15 
 16 http {
 17     include       mime.types;     # 文件扩展名与文件类型映射表 
 18     default_type  application/octet-stream;    # 默认文件类型 
 19 
 20     #log_format  main  ‘$remote_addr - $remote_user [$time_local] "$request" ‘
 21     #                  ‘$status $body_bytes_sent "$http_referer" ‘
 22     #                  ‘"$http_user_agent" "$http_x_forwarded_for"‘;
 23 
 24     #access_log  logs/access.log  main;
 25 
 26     sendfile        on;    # 开启高效文件传输模式，sendfile指令指定nginx是否调用sendfile函数来输出文件，对于普通应用设为on，如果用来进行下载等应用磁盘IO重负载应用，可设置为off，以平衡磁盘与网络I/O处理速度，降低系统的负载。注意：如果图片显示不正常把这个改成off。  
 27     #tcp_nopush     on;
 28 
 29     #keepalive_timeout  0;
 30     keepalive_timeout  65;    # 长连接超时时间，单位是秒 
 31 
 32     #gzip  on;    # 启用Gizp压缩
 33     
 34     #服务器的集群  
 35     upstream yjq {  # 服务器集群名字   
 36         server    127.0.0.1:18080  weight=1;    # 服务器配置   weight是权重的意思，权重越大，分配的概率越大。  
 37         server    127.0.0.1:28080  weight=2;  
 38     }   
 39 
 40     # 当前的Nginx的配置
 41     server {
 42         listen       80;    # 监听80端口，可以改成其他端口  
 43         server_name  localhost;    # 当前服务的域名 
 44 
 45         #charset koi8-r;
 46 
 47         #access_log  logs/host.access.log  main;
 48 
 49         location / {
 50             # root   html;
 51             # index  index.html index.htm;
 52             proxy_pass http://yjq;  
 53             proxy_redirect default;
 54         }
 55 
 56         #error_page  404              /404.html;
 57 
 58         # redirect server error pages to the static page /50x.html
 59         #
 60         error_page   500 502 503 504  /50x.html;
 61         location = /50x.html {
 62             root   html;
 63         }
 64 
 65         # proxy the PHP scripts to Apache listening on 127.0.0.1:80
 66         #
 67         #location ~ \.php$ {
 68         #    proxy_pass   http://127.0.0.1;
 69         #}
 70 
 71         # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
 72         #
 73         #location ~ \.php$ {
 74         #    root           html;
 75         #    fastcgi_pass   127.0.0.1:9000;
 76         #    fastcgi_index  index.php;
 77         #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
 78         #    include        fastcgi_params;
 79         #}
 80 
 81         # deny access to .htaccess files, if Apache‘s document root
 82         # concurs with nginx‘s one
 83         #
 84         #location ~ /\.ht {
 85         #    deny  all;
 86         #}
 87     }
 88 
 89 
 90     # another virtual host using mix of IP-, name-, and port-based configuration
 91     #
 92     #server {
 93     #    listen       8000;
 94     #    listen       somename:8080;
 95     #    server_name  somename  alias  another.alias;
 96 
 97     #    location / {
 98     #        root   html;
 99     #        index  index.html index.htm;
100     #    }
101     #}
102 
103 
104     # HTTPS server
105     #
106     #server {
107     #    listen       443 ssl;
108     #    server_name  localhost;
109 
110     #    ssl_certificate      cert.pem;
111     #    ssl_certificate_key  cert.key;
112 
113     #    ssl_session_cache    shared:SSL:1m;
114     #    ssl_session_timeout  5m;
115 
116     #    ssl_ciphers  HIGH:!aNULL:!MD5;
117     #    ssl_prefer_server_ciphers  on;
118 
119     #    location / {
120     #        root   html;
121     #        index  index.html index.htm;
122     #    }
123     #}
124 
125 }