高可用集群

一、server1和server4配置nginx（相同）：

1.将server1配置好的nginx复制给server4（可参考上一篇博客）

scp -r /usr/local/nginx  server4:/usr/local/  

2.配置文件最大打开数

vim /etc/sercurity/limits.conf 
nginx    -    nifile   65535

3.添加用户

useradd -M -d /usr/local/nginx  -u  800  nginx 

4.制作软链接（便于使用命令）

ln -s /usr/local/nginx/sbin/nginx  /usr/local/sbin

5.启动

nginx 

6.关闭防火墙
 

/etc/init.d/iptables stop 

7.安装 ricci 图形里的集群管理  luci 图形界面 

yum install ricci  luci  -y

注意：需要配置yum源:
    yum源内容：

[rhel-source]
    name=Red Hat Enterprise Linux $releasever - $basearch - Source
    baseurl=http://172.25.39.250/rhel6.5
    enabled=1
    gpgcheck=1
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

    [LoadBalancer]
    name=LoadBalancer
    baseurl=http://172.25.39.250/rhel6.5/LoadBalancer
    gpgcheck=0

    [HighAvailability]
    name=HighAvailability
    baseurl=http://172.25.39.250/rhel6.5/HighAvailability
    gpgcheck=0

    [ResilientStorage]
    name=ResilientStorage
    baseurl=http://172.25.39.250/rhel6.5/ResilientStorage
    gpgcheck=0

    [ScalableFileSystem]
    name=ScalableFileSystem
    baseurl=http://172.25.39.250/rhel6.5/ScalableFileSystem
    gpgcheck=0

 8.给ricci添加密码   

passwd ricci  

9.设置开机自启动

chkconfig luci on
chkconfig ricci on  

10.开启

/etc/init.d/ricci start  
/etc/init.d/luci start 

二、网页设置高可用

1.物理机配置：

(1)rpm -qa | grep fence
安装所有：
fence-virtd-multicast-0.3.2-2.el7.x86_64
fence-virtd-0.3.2-2.el7.x86_64
fence-virtd-serial-0.3.2-2.el7.x86_64
fence-virtd-libvirt-0.3.2-2.el7.x86_64

(2)fence_virtd -c
(3)cat /etc/fence_virt.conf
(4)mkdidr /etc/cluster
(5)dd if=/dev/urandom of=fence_xvm.key  bs=128 count=1
(6)scp fence_xvm.key server1:/etc/cluster/
  scp femce_xvm.key server4:/etc/cluster/
(7)systemctl  restart fence_virtd

2.浏览器输入：https://server1:8084

登陆

创建集群

显示

添加fence

给fence起名字

在node里面添加

Domain 为server1的uuid

在node添加

Domain为server4的uuid

添加failover domain

添加资源ip

添加httpd

添加服务组

将ip和httpd添加进去

server1和server4操作：
 

get nginx

chmod +x nginx
scp nginx  server4:/etc/init.d/
/etc/init.d/nginx  start

 

添加nginx

1.查看集群信息

clustat

2.查看解析
cat /etc/hosts