haproxy实现discuz论坛的动静分离和负载均衡

| 分类 linux  | 标签 haproxy  discuz  动静分离  负载均衡 

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一、在cs2、cs3、cs4上安装httpd

[root@cs2 ~]# yum install httpd

[root@cs3 ~]# yum install httpd

[root@cs4 ~]# yum install httpd

二、在cs3、cs4上安装php和php-mysql

[root@cs3 ~]# yum install php
[root@cs3 ~]# yum install php-mysql

[root@cs4 ~]# yum install php
[root@cs4 ~]# yum install php-mysql

三、在cs5上安装mysql

[root@cs5 ~]# yum install mariadb-server

四、在cs5上给dz论坛创建数据库

[root@cs5 ~]# systemctl start mariadb
[root@cs5 ~]# mysql
#创建一个discuz用的数据库,库名叫dz
MariaDB [(none)]> create database dz;
#创建并授权账号dzadmin密码123321给dz库,授权范围为全网
MariaDB [(none)]> grant all privileges on dz.* to dzadmin@'%' identified by '123321';
#授权账号dzadmin密码123321给dz库,授权范围为本地
MariaDB [(none)]> grant all privileges on dz.* to dzadmin@localhost identified by '123321';
#刷新权限
MariaDB [(none)]> flush privileges;

五、配置cs2、cs3、cs4的httpd

[root@cs2 ~]# vim /etc/httpd/conf/httpd.conf
ServerName cs2.xinfeng.com:80    #修改此处
DocumentRoot "/var/www/html/upload"    #因为次文件还不存在,所以会报错,等装了dz之后再执行之后的就OK了
[root@cs2 ~]# httpd -t
[root@cs2 ~]# systemctl start httpd

[root@cs3 ~]# vim /etc/httpd/conf/httpd.conf
ServerName cs3.xinfeng.com:80    #修改此处
DocumentRoot "/var/www/html/upload"    
[root@cs3 ~]# httpd -t
[root@cs3 ~]# systemctl start httpd

[root@cs4 ~]# vim /etc/httpd/conf/httpd.conf
ServerName cs4.xinfeng.com:80    #修改此处
DocumentRoot "/var/www/html/upload"
[root@cs4 ~]# httpd -t
[root@cs4 ~]# systemctl start httpd

六、在cs3安装discuz

[root@cs3 ~]# wget  http://download.comsenz.com/DiscuzX/3.2/Discuz_X3.2_SC_UTF8.zip
[root@cs3 ~]# mkdir Discuz
[root@cs3 ~]# unzip -d /root/Discuz Discuz_X3.2_SC_UTF8.zip
[root@cs3 ~]# cp -a /root/Discuz/* /var/www/html/
[root@cs3 ~]# chmod -R 777 /var/www/html/upload/*

打开cs3.xinfeng.com安装

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论坛管理员账号admin,密码123

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七、将cs3上安装完成后的网站根目录复制到cs2和cs4上

#复制cs3下的/var/www/html所有文件到cs2/var/www/html/下
[root@cs3 ~]# scp -r /var/www/html/* 192.168.1.114:/var/www/html/

#复制cs3下的/var/www/html所有文件到cs4/var/www/html/下
[root@cs3 ~]# scp -r /var/www/html/* 192.168.1.115:/var/www/html/

八、将cs3和cs4的静态文件存放目录挂载到cs2下

#/var/www/html/upload中需要挂载的目录如下
data ┄┄┄数据缓存及附件
static ┄┄┄静态文件

设置cs2为NFS服务器

[root@cs2 ~]# yum install nfs-utils
[root@cs2 ~]# yum install rpcbind
[root@cs2 ~]# service rpcbind start
[root@cs2 ~]# vim /etc/exports
#NFS输出目录为data,可以访问这个目录的主机为cs3和cs4,权限为读写,访问uid为0(root),允许超过1024的端口号连接
/var/www/html/upload/data/ 192.168.1.113(rw,all_squash,anonuid=0,insecure)
/var/www/html/upload/data/ 192.168.1.115(rw,all_squash,anonuid=0,insecure)
#NFS输出目录为static,可以访问这个目录的主机为cs3和cs4,权限为读写,访问uid为0(root),允许超过1024的端口号连接
/var/www/html/upload/static/ 192.168.1.113(rw,all_squash,anonuid=0,insecure)
/var/www/html/upload/static/ 192.168.1.115(rw,all_squash,anonuid=0,insecure)
[root@cs2 ~]# service nfs start
#查看共享状态
[root@cs2 ~]# showmount -e
Export list for cs2.xinfeng.com:
/var/www/html/upload/static 192.168.1.115,192.168.1.113
/var/www/html/upload/data   192.168.1.115,192.168.1.113

在cs3上挂载

[root@cs3 ~]# yum install nfs-utils
[root@cs3 ~]# yum install rpcbind
[root@cs3 ~]# service rpcbind start
[root@cs3 ~]# service nfs start
[root@cs3 ~]# mount 192.168.1.114:/var/www/html/upload/data/ /var/www/html/upload/data/
[root@cs3 ~]# mount 192.168.1.114:/var/www/html/upload/static/ /var/www/html/upload/static/
[root@cs3 ~]# showmount -e 192.168.1.114
Export list for 192.168.1.114:
/var/www/html/upload/static 192.168.1.115,192.168.1.113
/var/www/html/upload/data   192.168.1.115,192.168.1.113

在cs4上挂载

[root@cs4 ~]# yum install nfs-utils
[root@cs4 ~]# yum install rpcbind
[root@cs4 ~]# service rpcbind start
[root@cs4 ~]# service nfs start
[root@cs4 ~]# mount 192.168.1.114:/var/www/html/upload/data/ /var/www/html/upload/data/
[root@cs4 ~]# mount 192.168.1.114:/var/www/html/upload/static/ /var/www/html/upload/static/
[root@cs4 ~]# showmount -e 192.168.1.114
Export list for 192.168.1.114:
/var/www/html/upload/static 192.168.1.115,192.168.1.113
/var/www/html/upload/data   192.168.1.115,192.168.1.113

九、在cs1上安装配置haproxy

开起日志功能

[root@cs1 ~]# vim /etc/rsyslog.conf
#打开或增加一下几行,让udp514端口处于监听状态,并将日志纪录到指定文件中
$ModLoad imudp
$UDPServerRun 514
local2.*                                                /var/log/haproxy.log
[root@cs1 ~]# systemctl restart rsyslog.service
[root@cs1 ~]# ss -unl | grep 514
UNCONN     0      0            *:514                      *:*                  
UNCONN     0      0           :::514                     :::*

配置haproxy

[root@cs1 ~]# yum install haproxy
[root@cs1 ~]# vim /etc/haproxy/haproxy.cfg
#---------------------------------------------------------------------
global    #全局配置

    log         127.0.0.1 local2    #日志纪录位置

    chroot      /var/lib/haproxy    #haproxy的工作目录
    pidfile     /var/run/haproxy.pid    #pid文件位置
    maxconn     4000                    #最大连接数
    user        haproxy                #运行时使用的用户身份
    group       haproxy                #运行时使用的组身份
    daemon                            #启动为守护进程,不加此处运行在前台
    
    stats socket /var/lib/haproxy/stats    #本地访问stats统计信息时以套接字方式通信
    
defaults    #默认配置
    mode                    http    #已http模式运行
    log                     global    #默认日志为全局配置中日志的设置
    option                  httplog
    option                  dontlognull
    option http-server-close
    option forwardfor       except 127.0.0.0/8    #除本机外所有发往服务器的请求首部中加入“X-Forwarded-For”首部
    option                  redispatch
    retries                 3
    timeout http-request    10s
    timeout queue           1m
    timeout connect         10s
    timeout client          1m
    timeout server          1m
    timeout http-keep-alive 10s
    timeout check           10s
    maxconn                 3000    #前端最大并发连接数
    
listen static    #设置统计报告页面
    bind *:9000    #监听在本机9000端口
    stats enable    #打开
    stats hide-version    #隐藏haproxy版本
    stats uri /hadzadmin?stats    #统计页面路径
    stats realm "HAProxy/ Static"    #打开统计页面的认证功能
    stats auth hasts:123            #进入统计页面所使用的账号hasts和密码123
    stats admin if TRUE            #条件满足时进入管理级别
    
frontend  dz    #前端设置
    bind *:80    #监听在80端口
    acl url_static path_beg -i /data /static /images /javascript /stylesheets    #url开头为这些的静态内容
    acl url_static path_end -i .jpg .gif .png .css .js .html .ico    #url结尾带为这些的静态内容
    use_backend staser  if url_static    #如果静态内容符合url_static的条件,就调度到staser中的服务器
    default_backend             dyser    #其他默认调度到dyser中的服务器
    
backend dyser    #后端动态内容服务器设置
    cookie srv insert nocache    #在cookie中插入srv字串防止登录信息丢失
    balance     roundrobin    #调度算法为轮询
    server      cs3 192.168.1.113:80 check
    server      cs4 192.168.1.115:80 check
    
backend staser    #后端静态内容服务器设置
    balance     roundrobin
    server  cs1 192.168.1.114:80 check
    
[root@cs1 ~]# systemctl start haproxy

修改cs2、cs3、cs4的http配置文件,让他们能收到真实访问的ip

[root@cs2 ~]# vim /etc/httpd/conf/httpd.conf
#修改一下内容
    LogFormat "%{X-Forwarded-For}i %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
[root@cs2 ~]# service httpd reload
#cs3和cs4执行同样的操作

十、测试

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分别看下cs2,cs3,cs4最近的访问日志

[root@cs2 ~]# tail -1 /var/log/httpd/access_log 
192.168.1.110 - - [05/Jun/2016:16:36:12 +0800] "GET /data/attachment/forum/201606/05/161843j4au463pthh432zf.png HTTP/1.1" 304 - "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.122 Safari/537.36 SE 2.X MetaSr 1.0"
[root@cs3 uc_server]# tail -1 /var/log/httpd/access_log 
192.168.1.110 - - [05/Jun/2016:16:33:07 +0800] "GET /misc.php?mod=patch&action=ipnotice&_r=0.40765136777967004&inajax=1&ajaxtarget=ip_notice HTTP/1.1" 200 65 "http://cs1.xinfeng.com/forum.php?mod=viewthread&tid=1&extra=page%3D1" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36
[root@cs4 data]# tail -1 /var/log/httpd/access_log 
192.168.1.110 - - [05/Jun/2016:16:33:07 +0800] "GET /misc.php?mod=patch&action=pluginnotice&inajax=1&ajaxtarget=plugin_notice HTTP/1.1" 200 65 "http://cs1.xinfeng.com/forum.php?mod=viewthread&tid=1&extra=page%3D1" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36"


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