[Nginx]nginx反向代理集群配置

在程序固定之后， 不对程序优化，使用固有配置的设备，
提高并发的有效手段是添加硬件配置。

创建一个网站并测试QPS

先使用docker创建一个php网站。

1. 创建目录 ~/Program/test
2. 添加文件 index.php

<?php
      phpinfo();

2. 创建容器

docker run -d -v ~/Program/test:/webwww/public --name web1 -p 8081:80 ssslocal/nginx-php7

4. 访问

   
   

5. ab工具进行测试

$ ab -c 100 -n 10000 http://localhost:8081/                                 [23:08:11]
This is ApacheBench, Version 2.3 <$Revision: 1826891 $>
......
Server Software:        nginx/1.10.3
Server Hostname:        localhost
Server Port:            8081

Document Path:          /
Document Length:        77452 bytes

Concurrency Level:      100
Time taken for tests:   30.652 seconds
Complete requests:      10000
Failed requests:        1052
   (Connect: 2, Receive: 0, Length: 1050, Exceptions: 0)
Non-2xx responses:      6
Total transferred:      775965086 bytes
HTML transferred:       774055260 bytes
Requests per second:    326.24 [#/sec] (mean)
Time per request:       306.520 [ms] (mean)
Time per request:       3.065 [ms] (mean, across all concurrent requests)
Transfer rate:          24721.97 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    1  29.0      0    1097
Processing:     5  304  25.8    301     561
Waiting:        5  303  25.7    300     560
Total:          5  305  40.1    301    1490
......

可以看到QPS为326

组建一个nginx反向代理集群

1. 使用容器创建第二个网站

docker run -d --name web2 -v ~/Program/test:/webwww/public
-p 8082:80 ssslocal/nginx-php7

2. 添加集群配置文件
   • 先获取配置

   $ docker run --name tmp-nginx-container -d nginx
   $ docker cp tmp-nginx-container:/etc/nginx/nginx.conf ~/Program/test/nginx.conf
   $ docker rm -f tmp-nginx-container
   

   修改配置 nginx.conf 本次测试无需修改
   添加配置， ~/Program/test/default.conf

   upstream hello{
       server web1:80 weight=1;
       server web2:80 weight=1;
   }
   server {
       listen  80;
       server_name  www.if404.com;
       access_log /var/log/nginx/access.log main;
       error_log /var/log/nginx/error.log error;
       location / {
              proxy_set_header  Host  $http_host;
               proxy_set_header  X-Real-IP  $remote_addr;
               proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
              proxy_pass  http://hello;
       }
   }
   

3. 启动一个集群nginx容器

docker run -d --name web -v ~/Program/test/default.conf:/etc/nginx/conf.d/default.conf --link web1:web1 --link web2:web2 -p 8083:80 nginx

验证

$ ab -c 100 -n 10000 http://localhost:8083/                                  [0:10:32]
This is ApacheBench, Version 2.3 <$Revision: 1826891 $>
......
Server Software:        nginx/1.15.9
Server Hostname:        localhost
Server Port:            8083

Document Path:          /
Document Length:        77705 bytes

Concurrency Level:      100
Time taken for tests:   29.604 seconds
Complete requests:      10000
Failed requests:        9098
   (Connect: 0, Receive: 0, Length: 9098, Exceptions: 0)
Non-2xx responses:      5
Total transferred:      778581151 bytes
HTML transferred:       776671296 bytes
Requests per second:    337.80 [#/sec] (mean)
Time per request:       296.035 [ms] (mean)
Time per request:       2.960 [ms] (mean, across all concurrent requests)
Transfer rate:          25683.86 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.4      0       6
Processing:     9  295 105.7    302     567
Waiting:        9  292 105.5    300     563
Total:          9  295 105.6    303     567
......

可以看到QPS为337