HA集群配置

Posted 2020-08-07

软件：heartbeat

准备两台机器，均是64位系统

给两台主从机器分别设置新的hostname：master 和 slave

确保两台机器的selinux和iptables都关掉

编辑主和从的/etc/hosts：

192.168.237.133 master

192.168.237.137 slave

安装扩展源：rpm -ivh epel-release-6-8_64.noarch.rpm

yum安装heartbeat: yum install -y heartbeat

yum安装libnet: yum install -y libnet

拷贝配置文件样例：

[[email protected] ~]# cd /usr/share/doc/heartbeat-3.0.4

[[email protected] heartbeat-3.0.4]# ls

apphbd.cf  authkeys  AUTHORS  ChangeLog  COPYING  COPYING.LGPL  ha.cf  haresources  README

[[email protected] heartbeat-3.0.4]# cp authkeys ha.cf haresources /etc/ha.d/

[[email protected] heartbeat-3.0.4]# cd /etc/ha.d

[[email protected] ha.d]# ls

authkeys  ha.cf  harc  haresources  rc.d  README.config  resource.d  shellfuncs

编辑authkeys，让两台机器在加密的情况下进行通信，确认对方是否存活：

vim authkeys

安全级别有小到大：1<3<2

auth 3

#1 crc

#2 sha1 HI!

3 md5 Hello!

修改权限：chmod 600 authkeys

编辑haresources：修改主的名字，流动IP和启动的服务资源

首先给网卡eth0添加一个虚拟ip:

[[email protected] ha.d]# cd /etc/sysconfig/network-scripts/

[[email protected] network-scripts]# cp ifcfg-eth0 ifcfg-eth0:1

[[email protected] network-scripts]# vim ifcfg-eth0:1

DEVICE=eth0:1

TYPE=Ethernet

ONBOOT=yes

NM_CONTROLLED=yes

BOOTPROTO=static

IPADDR=192.168.237.109

NETMASK=255.255.255.0

重启网卡：[[email protected] network-scripts]# /etc/init.d/network restart

vim haresources

master  192.168.237.109/24/eth0:1 nginx

vim ha.cf

debugfile /var/log/ha-debug

logfile /var/log/ha-log

logfacility local0

keepalive 2

deadtime 30

warntime 10

initdead 60

udpport 694

ucast eth0 192.168.237.137

auto_failback on

node master

node slave

ping 192.168.237.1

respawn hacluster /usr/lib64/heartbeat/ipfail

把配置文件拷贝到slave上去：

[[email protected] ha.d]# rsync -av authkeys  ha.cf haresources slave:/etc/ha.d/

在slave上只修改ha.cf

[[email protected] ha.d]# vim ha.cf

ucast eth0 192.168.237.133

两台机器上准备好启动nginx服务

启动heartbeat: 先启动主，再启动从

本文出自 “模仿游戏” 博客，请务必保留此出处http://kevinjin117.blog.51cto.com/11655131/1846998