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Linux系统高可用集群软件之HeartBeat
服务器环境:
node1:192.168.1.100 10.0.0.1
node2:192.168.1.102 10.0.0.2
服务:apache
1.配置系统的网络环境
node1节点:
(1)配置IP地址
[root@node1 yum.repos.d]# cd /etc/sysconfig/network-scripts/
[root@node1 network-scripts]# vim ifcfg-eth0
DEVICE=eth0
HWADDR=08:00:27:EE:3D:F6
TYPE=Ethernet
UUID=f1fcda7b-0fa1-458d-800c-aeed3d56aad0
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=192.168.1.100
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
[root@node1 network-scripts]# vim ifcfg-eth1
DEVICE=eth1
HWADDR=08:00:27:06:79:47
TYPE=Ethernet
UUID=f1fcda7b-0fa1-458d-800c-aeed3d56aad0
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=10.0.0.1
NETMASK=255.255.255.0
(2)两节点主机名和IP地址解析
[root@node1 network-scripts]# vim /etc/hosts
192.168.1.100 node1
192.168.1.102 node2
[root@node1 network-scripts]#
node2节点:
(1)配置IP地址
[root@node2 ha.d]# cd /etc/sysconfig/network-scripts/
[root@node2 network-scripts]# vim ifcfg-eth0
DEVICE=eth0
HWADDR=08:00:27:A5:94:4C
TYPE=Ethernet
UUID=fd898d33-eed6-4333-a5cd-a6961d9f4226
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=192.168.1.102
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
[root@node2 network-scripts]# vim ifcfg-eth1
DEVICE=eth1
HWADDR=08:00:27:5B:2C:6E
TYPE=Ethernet
UUID=fd898d33-eed6-4333-a5cd-a6961d9f4226
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=10.0.0.2
NETMASK=255.255.255.0
(2)IP地址和主机解析
[root@node2 network-scripts]# vim /etc/hosts
192.168.1.100 node1
192.168.1.102 node2
[root@node2 network-scripts]#
(3)检查两台服务器是否能通信
[root@node1 network-scripts]# ping node2 -c1
PING node2 (192.168.1.102) 56(84) bytes of data.
64 bytes from node2 (192.168.1.102): icmp_seq=1 ttl=64 time=1.97 ms
--- node2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 2ms
rtt min/avg/max/mdev = 1.974/1.974/1.974/0.000 ms
[root@node2 network-scripts]# ping node1 -c 1
PING node1 (192.168.1.100) 56(84) bytes of data.
64 bytes from node1 (192.168.1.100): icmp_seq=1 ttl=64 time=0.524 ms
--- node1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 1ms
rtt min/avg/max/mdev = 0.524/0.524/0.524/0.000 ms
[root@node2 network-scripts]#
2.下载epel源,用epel源安装heartbeat软件
node1节点:
[root@node1 network-scripts]# wget http://mirrors3.ustc.edu.cn/epel/6/x86_64/epel-release-6-8.noarch.rpm
[root@node1 yum.repos.d]# rpm -ivh epel-release-6-8.noarch.rpm
Preparing... ########################################### [100%]
1:epel-release ########################################### [100%][root@node1 yum.repos.d]# vim epel.repo
将#baseurl前面的#号去掉,enabled=0修改为enabled=1
[root@node1 yum.repos.d]# vim epel-testing.repo
将#baseurl前面的#号去掉,enabled=0修改为enabled=1
[root@node1 yum.repos.d]# yum repolist
[root@node1 yum.repos.d]# yum install heartbeat* -y
[root@node1 yum.repos.d]# scp epel* node2:/etc/yum.repos.d/
root@node2‘s password:
epel-release-6-8.noarch.rpm 100% 14KB 14.2KB/s 00:00
epel.repo 100% 954 0.9KB/s 00:00
epel-testing.repo 100% 1054 1.0KB/s 00:00
[root@node1 yum.repos.d]#
node2节点:
[root@node2 yum.repos.d]# yum repolist
[root@node2 yum.repos.d]# yum install heartbeat* -y
3.在两个节点安装apache服务测试
node1节点:
[root@node1 yum.repos.d]# yum install httpd -y
[root@node1 yum.repos.d]# echo "node1" > /var/www/html/index.html
[root@node1 yum.repos.d]# /etc/init.d/httpd stop
[root@node1 yum.repos.d]# chkconfig httpd off
node2节点:
[root@node2 yum.repos.d]# yum install httpd -y
[root@node2 yum.repos.d]# echo "node2" > /var/www/html/index.html
[root@node2 yum.repos.d]# /etc/init.d/httpd stop
[root@node2 yum.repos.d]# chkconfig httpd off
4.配置HeartBeat集群软件
[root@node1 yum.repos.d]# cd /etc/ha.d/
[root@node1 ha.d]# cp -a /usr/share/doc/heartbeat-3.0.4/authkeys .
[root@node1 ha.d]# cp -a /usr/share/doc/heartbeat-3.0.4/haresources .
[root@node1 ha.d]# cp -a /usr/share/doc/heartbeat-3.0.4/ha.cf .
[root@node1 ha.d]# vim authkeys
auth 3 --添加这两行
3 md5 1111
[root@node1 ha.d]# chmod 600 authkeys
[root@node1 ha.d]# vim ha.cf
debugfile /var/log/ha-debug --去年前面的#号,开启调试日志
logfile /var/log/ha-log --去年前面的#号,开启运行和访问日志
keepalive 2 --去年前面的#号,心跳探测为2秒
deadtime 30
warntime 10 --去年前面的#号,等待时间10秒
initdead 120
bcast eth1 --添加这行,组播地址绑定在哪个网卡
auto_failback on --故障恢复
node node1 --添加这行,写上两台服务器的主机名
node node2
[root@node1 ha.d]# vim haresources
node1 192.168.1.105/24/eth1:0 httpd --添加这行,node1主服务器的主机名,192.168.1.105虚拟IP，24子网掩码,eth1:0是vip的网络接口,httpd是应用服务
[root@node1 ha.d]# scp authkeys ha.cf haresources node2:/etc/ha.d/ --将三个配置文件复制到node2中
root@node2‘s password:
authkeys 100% 663 0.7KB/s 00:00
ha.cf 100% 10KB 10.3KB/s 00:00
haresources 100% 5941 5.8KB/s 00:00
[root@node1 ha.d]#
5.启动服务,测试是否正常
node1节点:
[root@node1 ha.d]# /etc/init.d/heartbeat start
Starting High-Availability services: INFO: Resource is stopped
Done.
[root@node1 ha.d]# netstat -autnp |more
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 958/sshd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1178/master
tcp 0 52 192.168.1.100:22 192.168.1.93:51656 ESTABLISHED 1216/sshd
tcp 0 0 :::80 :::* LISTEN 7720/httpd
tcp 0 0 :::22 :::* LISTEN 958/sshd
tcp 0 0 ::1:25 :::* LISTEN 1178/master
udp 0 0 0.0.0.0:34964 0.0.0.0:* 7271/heartbeat: wri
udp 0 0 0.0.0.0:694 0.0.0.0:* 7271/heartbeat: wri
[root@node1 ha.d]#
node2节点:
[root@node2 ha.d]# /etc/init.d/heartbeat start
Starting High-Availability services: INFO: Resource is stopped
Done.
[root@node2 ha.d]# netstat -antup |more
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 956/sshd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1176/master
tcp 0 52 192.168.1.102:22 192.168.1.93:51657 ESTABLISHED 1214/sshd
tcp 0 0 :::22 :::* LISTEN 956/sshd
tcp 0 0 ::1:25 :::* LISTEN 1176/master
udp 0 0 0.0.0.0:42151 0.0.0.0:* 4581/heartbeat: wri
udp 0 0 0.0.0.0:694 0.0.0.0:* 4581/heartbeat: wri
[root@node2 ha.d]#
测试访问：
测试故障转移:
node1节点:
[root@node1 ha.d]# /etc/init.d/httpd stop
Stopping httpd: [ OK ]
[root@node1 ha.d]#
node2节点:
[root@node2 ha.d]# netstat -antup |more
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 956/sshd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1176/master
tcp 0 52 192.168.1.102:22 192.168.1.93:51657 ESTABLISHED 1214/sshd
tcp 0 0 :::80 :::* LISTEN 4918/httpd
tcp 0 0 :::22 :::* LISTEN 956/sshd
tcp 0 0 ::1:25 :::* LISTEN 1176/master
udp 0 0 0.0.0.0:42151 0.0.0.0:* 4581/heartbeat: wri
udp 0 0 0.0.0.0:694 0.0.0.0:* 4581/heartbeat: wri
[root@node2 ha.d]#
本文出自 “一起走过的日子” 博客，请务必保留此出处http://tongcheng.blog.51cto.com/6214144/1575284
Linux系统高可用集群软件之HeartBeat