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5、启动Corosync服务
[root@nod1 ~]# service corosync start
Starting Corosync Cluster Engine (corosync): [ OK ]
######查看corosync引擎是否正常启动
[root@nod1 ~]# grep -e "Corosync Cluster Engine" -e "configuration file" /var/log/cluster/corosync.log
Sep 19 18:44:36 corosync [MAIN ] Corosync Cluster Engine ('1.4.1'): started and ready to provide service.
Sep 19 18:44:36 corosync [MAIN ] Successfully read main configuration file '/etc/corosync/corosync.conf'.
######查看启动过程是否产生错误信息；如下信息可以忽略
[root@nod1 ~]# grep ERROR: /var/log/cluster/corosync.log
Sep 19 18:44:36 corosync [pcmk ] ERROR: process_ais_conf: You have configured a cluster using the Pacemaker plugin for Corosync. The plugin is not supported in this environment and will be removed very soon.
Sep 19 18:44:36 corosync [pcmk ] ERROR: process_ais_conf: Please see Chapter 8 of 'Clusters from Scratch' (http://www.clusterlabs.org/doc) for details on using Pacemaker with CMAN
######查看初始化成员节点通知是否正常发出
[root@nod1 ~]# grep TOTEM /var/log/cluster/corosync.log
Sep 19 18:44:36 corosync [TOTEM ] Initializing transport (UDP/IP Multicast).
Sep 19 18:44:36 corosync [TOTEM ] Initializing transmit/receive security: libtomcrypt SOBER128/SHA1HMAC (mode 0).
Sep 19 18:44:36 corosync [TOTEM ] The network interface [172.16.14.1] is now up.
Sep 19 18:44:36 corosync [TOTEM ] A processor joined or left the membership and a new membership was formed.
######查看pacemaker是否正常启动
[root@nod1 ~]# grep pcmk_startup /var/log/cluster/corosync.log
Sep 19 18:44:36 corosync [pcmk ] info: pcmk_startup: CRM: Initialized
Sep 19 18:44:36 corosync [pcmk ] Logging: Initialized pcmk_startup
Sep 19 18:44:36 corosync [pcmk ] info: pcmk_startup: Maximum core file size is: 18446744073709551615
Sep 19 18:44:36 corosync [pcmk ] info: pcmk_startup: Service: 9
Sep 19 18:44:36 corosync [pcmk ] info: pcmk_startup: Local hostname: nod1.allen.com
6、启动NOD2节点上Corosync服务
[root@nod1 ~]# ssh nod2 'service corosync start'
Starting Corosync Cluster Engine (corosync): [ OK ]
######查看集群节点启动状态
[root@nod1 ~]# crm status
Last updated: Thu Sep 19 19:01:33 2013
Last change: Thu Sep 19 18:49:09 2013 via crmd on nod1.allen.com
Stack: classic openais (with plugin)
Current DC: nod1.allen.com - partition with quorum
Version: 1.1.8-7.el6-394e906
2 Nodes configured, 2 expected votes
0 Resources configured.
Online: [ nod1.allen.com nod2.allen.com ] #两个节点都已正常启动
7、查看Corosync启动的相关进程
[root@nod1 ~]# ps auxf
root 10336 0.3 1.2 556824 4940 ? Ssl 18:44 0:04 corosync
305 10342 0.0 1.7 87440 7076 ? S 18:44 0:01 \_ /usr/libexec/pacemaker/cib
root 10343 0.0 0.8 81460 3220 ? S 18:44 0:00 \_ /usr/libexec/pacemaker/stonit
root 10344 0.0 0.7 73088 2940 ? S 18:44 0:00 \_ /usr/libexec/pacemaker/lrmd
305 10345 0.0 0.7 85736 3060 ? S 18:44 0:00 \_ /usr/libexec/pacemaker/attrd
305 10346 0.0 4.7 116932 18812 ? S 18:44 0:00 \_ /usr/libexec/pacemaker/pengin
305 10347 0.0 1.0 143736 4316 ? S 18:44 0:00 \_ /usr/libexec/pacemaker/crmd
五、配置资源
1、Corosync默认启用了Stonith，而当前集群并没有相应的Stonith，会出现以下错误；需要禁用Stonith
[root@nod1 ~]# crm_verify -L -V
(责任编辑：liangzh) |