本文介绍下corosync的资源监控功能：
node1 node1.luojianlong.com 192.168.30.116 OS: Centos 6.4 x86_64
node2 node2.luojianlong.com 192.168.30.117 OS: Centos 6.4 x86_64
1.定义corosync资源：
[root@node1 ~]# crm configure primitive WebIP ocf:heartbeat:IPaddr params ip=192.168.30.230 op monitor interval=20 timeout=15 on-fail=restart [root@node2 ~]# crm status Last updated: Tue Mar 25 13:22:25 2014 Last change: Tue Mar 25 13:17:52 2014 via cibadmin on node1.luojianlong.com Stack: classic openais (with plugin) Current DC: node1.luojianlong.com - partition with quorum Version: 1.1.10-14.el6_5.1-368c726 2 Nodes configured, 2 expected votes 1 Resources configured Online: [ node1.luojianlong.com node2.luojianlong.com ] WebIP (ocf::heartbeat:IPaddr): Started node1.luojianlong.com
发现WebIP已经在node1自动启动
2.验证corosync在其中一个节点启动失败时，会在另外一个节点启动
#在node1和node2上分别安装nginx
[root@node1 ~]# yum -y install nginx
[root@node2 ~]# yum -y install nginx
#在node2上启动httpd，模拟80端口被占用，使nginx无法启动
[root@node2 ~]# service httpd start
Starting httpd: [ OK ]
#创建nginx资源
[root@node2 ~]# crm configure primitive nginx lsb:nginx op monitor interval=20 timeout=20 on-fail=restart
[root@node2 ~]# crm status
Last updated: Tue Mar 25 13:40:30 2014
Last change: Tue Mar 25 13:37:07 2014 via cibadmin on node2.luojianlong.com
Stack: classic openais (with plugin)
Current DC: node1.luojianlong.com - partition with quorum
Version: 1.1.10-14.el6_5.1-368c726
2 Nodes configured, 2 expected votes
2 Resources configured
Online: [ node1.luojianlong.com node2.luojianlong.com ]
WebIP (ocf::heartbeat:IPaddr): Started node1.luojianlong.com
nginx (lsb:nginx): Started node1.luojianlong.com
#在node1上发现nginx服务已经启动：
[root@node1 ~]# ss -antpl | grep nginx
LISTEN 0 128 *:80 *:* users:(("nginx",29510,6),("nginx",29512,6))