HA高可用方案之heartbeat v1的安装配置

配置前提：

1.时间必须同步，建议使用ntp协议
2.节点之间必须要通过主机名互相通信；通信中使用的名字必须与其节点上"uname -n"命令展示出的名字一致
3.需要仲裁设备
4.双方root用户能基于ssh密钥方式进行通信
5.本地资源必须能够正常运行，本文将使用httpd作为案例

注意：定义为集群服务中的任意资源都不能开机自动启动，因为他们将由CRM启动
安装方法：

[root@nod1 heartbeat1]# yum -y install net-snmp-libs libnet PyXML libltdl   注意配置epel源
[root@nod1 heartbeat1]# rpm -ivh heartbeat-2.1.4-12.el6.i686.rpm heartbeat-stonith-2.1.4-12.el6.i686.rpm heartbeat-pils-2.1.4-12.el6.i686.rpm
Preparing...                ########################################### [100%]
1:heartbeat-pils         ########################################### [ 33%]
2:heartbeat-stonith      ########################################### [ 67%]
3:heartbeat              ########################################### [100%]

同步时间:

crontab */3 * * * * /usr/sbin/ntpdate 172.16.0.1 &> /dev/null

节点1：建立加密关联

ssh-keygen -P ''ssh-copey-id -i .ssh/id_rsa.pub root@node2

[root@nod1 ~]# ssh nod2 'date';date   保持两个节点时间同步Mon Oct  5 17:38:47 HKT 2015Mon Oct  5 17:38:47 HKT 2015

[root@nod1 ~]# scp /etc/hosts nod2:/etc/hosts    两个节点的hosts文件保持一致hosts                                                 100%  228     0.2KB/s   00:00

[root@nod2 ~]# ssh-keygen -t rsa -P ''       确保nod2加密连接到nod1
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
b0:bc:2e:44:88:6e:7b:a7:d0:63:f6:9f:4f:f8:4d:55 root@nod2.mageedu.com
The key's randomart image is:
+--[ RSA 2048]----+
|                 |
|                 |
| . .  .        E |
|. . .. o      .  |
|.  .  o S    .   |
| o. .  ..   .    |
|...*  .. . .     |
| .+.+o  + o      |
|  ..oooo.o .     |
+-----------------+[root@nod2 ~]# ssh-copy-id -i .ssh/id_rsa.pub root@nod1The authenticity of host 'nod1 (192.168.1.10)' can't be established.RSA key fingerprint is 41:26:a8:88:6a:93:f6:56:aa:87:6b:d7:62:46:83:0d.Are you sure you want to continue connecting (yes/no)? yesWarning: Permanently added 'nod1,192.168.1.10' (RSA) to the list of known hosts.root@nod1's password: Now try logging into the machine, with "ssh 'root@nod1'", and check in:   .ssh/authorized_keys to make sure we haven't added extra keys that you weren't expecting. [root@nod2 ~]# ssh nod1 'date';dateMon Oct  5 17:45:26 HKT 2015Mon Oct  5 17:45:26 HKT 2015

配置文件设置；

cd /usr/share/doc/heartbeat-2.1.4cp -p authkeys haresources ha.cf /etc/ha.d   #将备用的配置文件拷贝到配置目录中   ha.cf:heartbeat的主配置文件，authkeys:集群信息加密算法及密钥,haresources:heartbeat v1的CRM配置接口cd /etc/ha.d/chmod 600 authkeys   修改权限400或600

修改ha.cf配置：

vim ha.cflogfile /var/log/ha-log#logfacility    local0mcast eth0 228.203.101.1 694 1 0  采用多播地址，本地组播地址：239.0.0.0-239.255.255.255，仅在特定的本地范围内有效 node nod1.mageedu.comnode nod2.mageedu.com   加入高可用集群的计算机ping  192.168.1.1  仲裁设备，判断计算机是否可用的标准compression bz2  选择压缩

vim authkeys    auth 1   1 sha1  343434349   设置加密，可以使用openssl rand -hex 6生成加密密码

vim haresouces:  nod1.mageedu.com 192.168.1.15/24/eth0/192.168.1.255 httpd    Haresources文件用于指定双机系统的主节点、集群IP、子网掩码、广播地址以及启动的服务等集群资源s

scp -p authkeys haresouces ha.cf node2:/etc/ha.d/  确保主机2 配置，文件属性相同－p

service heartbeart start; ssh node2 'service heartbeat start'启动服务，访问外网地址能正常访问

tail /var/log/ha-log 查看日志

cd /usr/lib64/heartbeat/    ./hb_standby 不作为主    ./hb_takeover 作为主 资源转化用

本文出自 “学无止境” 博客，请务必保留此出处http://chickengg.blog.51cto.com/10402610/1700294