五、安装apache服务和集群文件系统-GFS2
为了方便验证，我就安装一个apache服务用于测试：
#yum install httpd -y
在HA1上的添加测试页面：
#echo "<h1>node1.linuxidc.com<h1>" >/var/www/html/index.html
在HA2上的添加测试页面：
#echo "<h1>node2.linuxidc.com<h1>" >/var/www/html/index.html
然后把两个节点上的/etc/httpd/conf/httpd.conf的配置文件，保持一下的内容是开启的，
如果有注释的，请去掉注释
<Location /server-status>
SetHandler server-status
Order deny,allow
Deny from all
Allow from 127.0.0.1
</Location>
保证httpd服务不会随着开机自动启动
#chkconfig httpd off
#crm configure property stonith-enabled=false //关闭stonith设备
#crm configure property no-quorum-policy=ignore //关闭两节点之间的选举
#crm configure
为httpd添加资源
# crm configure primitive WebSite ocf:heartbeat:apache params
configfile=/etc/httpd/conf/httpd.conf op monitor interval=1min
# crm configure primitive ClusterIP ocf:heartbeat:IPaddr2 params
ip=192.168.1.110 cidr_netmask=32 op monitor interval=30s //添加一个虚拟IP
[root@node1 ~]# crm status
============
Last updated: Mon Sep 19 23:44:05 2011
Stack: openais
Current DC: node2.linuxidc.com - partition with quorum
Version: 1.1.5-1.fc15-01e86afaaa6d4a8c4836f68df80ababd6ca3902f
2 Nodes configured, 2 expected votes
2 Resources configured.
============
Online: [ node2.linuxidc.com node1.linuxidc.com ]
ClusterIP (ocf::heartbeat:IPaddr2): Started node1.linuxidc.com
WebSite (ocf::heartbeat:apache): Started node2.linuxidc.com
可以看到两个资源不在同一个节点上，所以需要做一下的设置：
#crm configure colocation website-with-ip INFINITY: WebSite ClusterIP //做一个
位置约束
然后再使用crm status 查看资源已经都流转到同一个节点上了，如下所示
Online: [ node2.linuxidc.com node1.linuxidc.com ]
ClusterIP (ocf::heartbeat:IPaddr2): Started node1.linuxidc.com
WebSite (ocf::heartbeat:apache): Started node1.linuxidc.com
还要控制资源的启动停止顺序
#crm configure order apache-after-ip mandatory: ClusterIP WebSite //定义ip的资
源要在apache的服务启动之前启动
指定优先的Location
#crm configure location prefer-pcmk-l WebSite 50: node1.linuxidc.com
#crm configure show //查看一下自己的配置如下
[root@node1 ~]# crm configure show
node node1.linuxidc.com
node node2.linuxidc.com
primitive ClusterIP ocf:heartbeat:IPaddr2 \
params ip="192.168.1.110" cidr_netmask="32" \
op monitor interval="30s"
primitive WebSite ocf:heartbeat:apache \
params configfile="/etc/httpd/conf/httpd.conf" \
op monitor interval="1min"
location prefer-pcmk-l WebSite 50: node1.linuxidc.com
colocation website-with-ip inf: WebSite ClusterIP
order apache-after-ip inf: ClusterIP WebSite
property $id="cib-bootstrap-options" \
dc-version="1.1.5-1.fc15-01e86afaaa6d4a8c4836f68df80ababd6ca3902f" \
cluster-infrastructure="openais" \
expected-quorum-votes="2" \
stonith-enabled="false" \
no-quorum-policy="ignore"
rsc_defaults $id="rsc-options" \
resource-stickiness="100"
如上图所示，资源已经启动了，所以接下来就可以往下做了！
可以在浏览其中输入可以访问web服务了！