十：corosync+pacemaker的安装和配置
node1: [root@node1 ~]# yum localinstall *.rpm -y --nogpgcheck
node2: [root@node2~]# yum localinstall *.rpm -y --nogpgcheck
十一：对各个节点进行相应的配置
node1:
1：切换到主配置文件的目录
[root@node1 ~]# cd /etc/corosync/
root@node1 corosync]# cp corosync.conf.example corosync.conf
[root@node1 corosync]# vim corosync.conf
compatibility: whitetank
totem { //这是用来传递心跳时的相关协议的信息
version: 2
secauth: off
threads: 0
interface {
ringnumber: 0
bindnetaddr: 192.168.2.0 //我们只改动这里就行啦
mcastaddr: 226.94.1.1
mcastport: 5405
}
}
logging {
fileline: off
to_stderr: no //是否发送标准出错
to_logfile: yes //日志
to_syslog: yes //系统日志 （建议关掉一个），会降低性能
logfile: /var/log/cluster/corosync.log //需要手动创建目录cluster
debug: off // 排除时可以起来
timestamp: on //日志中是否记录时间
//******以下是openais的东西，可以不用代开*****//
logger_subsys {
subsys: AMF
debug: off
}
}
amf {
mode: disabled
}
//*********补充一些东西，前面只是底层的东西，因为要用pacemaker ******//
service {
ver: 0
name: pacemaker
use_mgmtd: yes
}
//******虽然用不到openais ，但是会用到一些子选项 ********//
aisexec {
user: root
group: root
}
2:创建cluster目录
[root@node1 corosync]# mkdir /var/log/cluster
3:为了便面其他主机加入该集群，需要认证，生成一authkey
[root@node1 corosync]# corosync-keygen
[root@node1 corosync]# ll
-rw-r--r-- 1 root root 5384 Jul 28 2010 amf.conf.example
-r-------- 1 root root 128 May 8 14:09 authkey
-rw-r--r-- 1 root root 538 May 8 14:08 corosync.conf
-rw-r--r-- 1 root root 436 Jul 28 2010 corosync.conf.example
drwxr-xr-x 2 root root 4096 Jul 28 2010 service.d
drwxr-xr-x 2 root root 4096 Jul 28 2010 uidgid.d
4:将node1节点上的文件拷贝到节点node2上面（记住要带-p)
[root@node1 corosync]# scp -p authkey corosync.conf node2:/etc/corosync/
authkey 100% 128 0.1KB/s 00:00
corosync.conf 100% 513 0.5KB/s 00:00
[root@node1 corosync]# ssh node2 'mkdir /var/log/cluster'
5:在node1和node2节点上面启动 corosync 的服务
[root@node1 corosync]# service corosync start
6:验证corosync引擎是否正常启动了
[root@node1 corosync]# grep -i -e "corosync cluster engine" -e "configuration file" /var/log/messages
ct 18 23:24:02 node1 smartd[2832]: Opened configuration file /etc/smartd.conf
Oct 18 23:24:02 node1 smartd[2832]: Configuration file /etc/smartd.conf was parsed, found DEVICESCAN, scanning devices
May 7 14:00:29 node1 smartd[2787]: Opened configuration file /etc/smartd.conf
May 7 14:00:29 node1 smartd[2787]: Configuration file /etc/smartd.conf was parsed, found DEVICESCAN, scanning devices
May 7 16:24:36 node1 corosync[686]: [MAIN ] Corosync Cluster Engine ('1.2.7'): started and ready to provide service.
May 7 16:24:36 node1 corosync[686]: [MAIN ] Successfully read main configuration file '/etc/corosync/corosync.conf'.
7:查看初始化成员节点通知是否发出
[root@node1 corosync]# grep -i totem /var/log/messages
May 7 16:24:36 node1 corosync[686]: [TOTEM ] Initializing transport (UDP/IP).
May 7 16:24:36 node1 corosync[686]: [TOTEM ] Initializing transmit/receive security: libtomcrypt SOBER128/SHA1HMAC (mode 0).
May 7 16:24:36 node1 corosync[686]: [TOTEM ] The network interface is down.
May 7 16:24:37 node1 corosync[686]: [TOTEM ] A processor joined or left the membership and a new membership was formed.
May 7 16:38:30 node1 corosync[754]: [TOTEM ] Initializing transport (UDP/IP).
May 7 16:38:30 node1 corosync[754]: [TOTEM ] Initializing transmit/receive security: libtomcrypt SOBER128/SHA1HMAC (mode 0).
May 7 16:38:30 node1 corosync[754]: [TOTEM ] The network interface [192.168.2.10] is now up.
May 7 16:38:31 node1 corosync[754]: [TOTEM ] Process pause detected for 603 ms, flushing membership messages.
May 7 16:38:31 node1 corosync[754]: [TOTEM ] A processor joined or left the membership and a new membership was formed.
8:检查过程中是否有错误产生
[root@node1 corosync]#grep -i error: /var/log/messages |grep -v unpack_resources （避免stonith的错误）
9:检查pacemaker时候已经启动了
[root@node1 corosync]# grep -i pcmk_startup /var/log/messages
May 7 16:24:36 node1 corosync[686]: [pcmk ] info: pcmk_startup: CRM: Initialized
May 7 16:24:36 node1 corosync[686]: [pcmk ] Logging: Initialized pcmk_startup
May 7 16:24:36 node1 corosync[686]: [pcmk ] info: pcmk_startup: Maximum core file size is: 4294967295
May 7 16:24:36 node1 corosync[686]: [pcmk ] info: pcmk_startup: Service: 9
May 7 16:24:36 node1 corosync[686]: [pcmk ] info: pcmk_startup: Local hostname: node1.a.com
May 7 16:38:31 node1 corosync[754]: [pcmk ] info: pcmk_startup: CRM: Initialized
May 7 16:38:31 node1 corosync[754]: [pcmk ] Logging: Initialized pcmk_startup
May 7 16:38:31 node1 corosync[754]: [pcmk ] info: pcmk_startup: Maximum core file size is: 4294967295
May 7 16:38:31 node1 corosync[754]: [pcmk ] info: pcmk_startup: Service: 9
May 7 16:38:31 node1 corosync[754]: [pcmk ] info: pcmk_startup: Local hostname: node1.a.com
node2:重复上面的5--9步骤
10:在node1上查看群集的状态
[root@node1 ~]# crm status
Last updated: Wed May 9 18:28:57 2012
Stack: openais
Current DC: node1.linuxidc.com - partition with quorum
Version: 1.1.5-1.1.el5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f
2 Nodes configured, 2 expected votes
0 Resources configured.
============
Online: [ node1.linuxidc.com node2.linuxidc.com ]