Fedora 15上做双主模型的集群
拓扑如下所示：
----------- ----------
| HA1 |____| HA2 |
|__________| |________|
HA1:
IP:192.168.1.78/24
HA2:
IP:192.168.1.151/24
VIP:192.168.1.110
一、配置网络属性
HA1:
#ifconfit eth0 192.168.1.78/24
#route add default gw 192.168.1.1
#hostname node1.linuxidc.com
HA2:
#ifconfig eth0 192.168.1.151/24
#route add default gw 192.168.1.1
#hostname node2.linuxidc.com
二、配置主机名及两个之间不实用密码能相互通信
#vim /etc/hosts 添加如下内容
192.168.1.78 node1.linuxidc.com node1
192.168.1.151 node2.linuxidc.com node2
同样在HA2上也添加这些内容
#ping node2|node1能解析出来就OK啦
分别在两个HA上生成一对密钥，如下所示
[root@node1 ~]# ssh-keygen -t rsa //生成公钥和密钥
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Created directory '/root/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
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:
59:71:5d:4d:4c:6d:71:b1:ec:04:17:26:49:cb:27:a1 root@node1.linuxidc.com
The key's randomart image is:
+--[ RSA 2048]----+
| . o*.@@|
| oo.X B|
| .E + * |
| o = |
| S . |
| |
| |
| |
| | //这个图案就是所谓的指纹信息吧，呵呵，RedHat上没有
+-----------------+
[root@node1 ~]# ssh-copy-id -i .ssh/id_rsa.pub root@node2 //拷贝公钥到对方机
器上
The authenticity of host 'node2 (192.168.1.151)' can't be established.
RSA key fingerprint is 77:b6:c6:09:51:f9:f4:70:c1:35:81:47:a5:19:f4:d2.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node2,192.168.1.151' (RSA) to the list of known
hosts.
root@node2's password: //输入对方机器的密码
Now try logging into the machine, with "ssh 'root@node2'", and check in:
~/.ssh/authorized_keys
to make sure we haven't added extra keys that you weren't expecting.
在HA2上做同上的操作，我就不具体演示了！
三、配置yum源，我使用的是163做的镜像源
这上面有对应fedora的yum源配置使用的说明，我就不做详细阐述了
如果你没有DNS解析域名，还要在/etc/hosts文件中手动添加解析奥，我的如下：
66.35.62.166 mirrors.fedoraproject.org
213.129.242.84 mirrors.rpmfusion.org
123.58.173.106 mirrors.163.com
这些对应的域名和IP关系大家都会，就是使用ping可以解析出，不解释！
四、安装集群软件
两个节点上都要做的
#yum install corosync pacemaker -y //由于是网络镜像，会比较慢，耐心等会吧！
安装完成之后就是配置了，注意配置的时候选择的端口和地址不能跟已存在的集群冲突，所
以我就做了一下简单的设置
#export ais_port=4000
#export ais_mcast=226.94.1.1
接下来就是配置corosync了：
#cd /etc/corosync/
#cp corosync.conf.example corosync.conf
#vim !$ 把配置改成如下
# Please read the corosync.conf.5 manual page
compatibility: whitetank
totem {
version: 2
secauth: on
threads: 0
interface {
ringnumber: 0
bindnetaddr: 192.168.1.0 //指定集群所在的网段的网络号
mcastaddr: 226.94.1.1 //组播地址
mcastport: 4000 //端口号
ttl: 1
}
}
logging {
fileline: off
to_stderr: no
to_logfile: yes
to_syslog: no
logfile: /var/log/cluster/corosync.log
debug: off
timestamp: on
logger_subsys {
subsys: AMF
debug: off
}
}
amf {
mode: disabled
}
####以下是添加的内容
service {
ver: 1 //定义pacemaker的版本，fedora上使用版本1，而在redhat上可以