使用Haproxy实现读写分离

柔光的暖阳◎ 2023-07-12 11:57 22阅读 0赞

在前面实验（[https://blog.csdn.net/qq\_35887546/article/details/104734977][https_blog.csdn.net_qq_35887546_article_details_104734977]）的基础上实现读写分离

# 1.配置haproxy服务器 #

在server1：

[root@server1 html]# vim /etc/haproxy/haproxy.cfg 
    
     61 # main frontend which proxys to the backends
     62 #---------------------------------------------------------------------
     63 frontend  westos *:80
     64     acl url_static       path_beg       -i /images
     65     acl url_static       path_end       -i .jpg .gif .png
     66     acl read method GET
     67     acl read method HEAD                #两个read write 只用一个就行
     68     acl write method PUT
     69     acl write method POST
     70     #acl westos.org hdr_beg(host)       -i westos.org
     71     #acl 172.25.63.1 hdr_beg(host)      -i 172.25.63.1 
     72     #errorloc 403 http://172.25.63.1:8000
     73     use_backend app          if write                   #如果是写的话就是动态页面
     74     default_backend             static                  #默认为静态页面
     75 #     redirect code 301 location http://www.westos.org if westos.org              #以westos.org访问就自动重定向到www.we    stos.org
     76 #    redirect code 301 location http://www.westos.org if 172.25.63.1             #以172.25.63.1访问就自动重定向到www.w    estos.org

# 2.配置后端服务器 #

在server2和server3做同样的操作:

[root@server2 ~]# yum install php -y
    [root@server2 ~]# cd /var/www/html/
    [root@server2 html]# ls
    index.html  index.php  upload_file.php	upload			#放入测试脚本以及文件目录
    
    [root@server2 html]# vim upload_file.php 
      5 && ($_FILES["file"]["size"] < 2000000))
    
    [root@server2 html]# chmod 777 upload_file.php 
    [root@server2 html]# systemctl restart httpd

# 3.测试 #

server1重启haproxy后：

[root@server1 html]# systemctl restart haproxy

在客户端浏览器输入 `172.25.63.1/index.php` 进行写测试：![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1ODg3NTQ2_size_16_color_FFFFFF_t_70]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1ODg3NTQ2_size_16_color_FFFFFF_t_70 1]  
在客户端浏览器输入 `172.25.63.1/images` 进行读测试：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1ODg3NTQ2_size_16_color_FFFFFF_t_70 2]

[https_blog.csdn.net_qq_35887546_article_details_104734977]: https://blog.csdn.net/qq_35887546/article/details/104734977
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1ODg3NTQ2_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200308174045101.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1ODg3NTQ2,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1ODg3NTQ2_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200308174055878.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1ODg3NTQ2,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1ODg3NTQ2_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20200308174349717.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1ODg3NTQ2,size_16,color_FFFFFF,t_70