corosync/openais+pacemaker实现的www的高可用性群集

corosync/openais+pacemaker实现的www的高可用性群集

拓扑图：

 

 

 

在node1 node2上做基本配置

[root@localhost ~]# hwclock -s

[root@localhost ~]# date

2012年 10月 18日 星期四 10:35:55 CST

[root@localhost ~]# vim /etc/hosts

# Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1                localhost.localdomain localhost

::1              localhost6.localdomain6 localhost6

192.168.1.10 node1.a.com node1

192.168.1.20 node2.a.com node2

[root@localhost ~]# vim /etc/sysconfig/network

NETWORKING=yes

NETWORKING_IPV6=no

HOSTNAME=node1.a.com

[root@localhost ~]# hostname node1.a.com

[root@node1 ~]# vim /etc/yum.repos.d/rhel-debuginfo.repo

[rhel-server]

name=Red Hat Enterprise Linux serverbaseurl=file:///mnt/cdrom/Server

enabled=1

gpgcheck=1

gpgkey=file:///mnt/cdrom/RPM-GPG-KEY-redhat-release

[rhel-cluster]

name=Red Hat Enterprise Linux cluster

baseurl=file:///mnt/cdrom/Cluster

enabled=1

gpgcheck=1

gpgkey=file:///mnt/cdrom/RPM-GPG-KEY-redhat-release

 

[root@localhost ~]# hwclock -s

[root@localhost ~]# date

2012年 10月 18日 星期四 10:44:46 CST

[root@localhost ~]# vim /etc/hosts

# Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1                localhost.localdomain localhost

::1              localhost6.localdomain6 localhost6

192.168.1.10 node1.a.com node1

192.168.1.20 node2.a.com node2

[root@localhost ~]# vim /etc/sysconfig/network

NETWORKING=yes

NETWORKING_IPV6=no

HOSTNAME=node2.a.com

[root@localhost ~]# hostname node2.a.com

[root@node1 ~]# scp /etc/yum.repos.d/rhel-debuginfo.repo node2.a.com:/etc/yum.repos.d/

The authenticity of host 'node2.a.com (192.168.1.20)' can't be established.

RSA key fingerprint is c7:11:f0:b8:8b:33:ba:66:9f:c3:d7:a0:5c:67:f0:e1.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added 'node2.a.com,192.168.1.20' (RSA) to the list of known hosts.

[email protected]'s password:

rhel-debuginfo.repo                     100% 317     0.3KB/s   00:00   

 

在各个节点上面产生密钥实现无密码的通讯

[root@node1 ~]# ssh-keygen -t rsa

把公钥拷贝给对方

[root@node1 .ssh]# ssh-copy-id -i id_rsa.pub node2

[root@node2 ~]# ssh-keygen -t rsa

[root@node2 ~]# cd .ssh/

[root@node2 .ssh]# ssh-copy-id -i id_rsa.pub node1

 

安装软件包

[root@node1 ~]# yum localinstall -y *.rpm --nogpgcheck

Installed:

 cluster-glue.i386 0:1.0.6-1.6.el5               cluster-glue-libs.i386 0:1.0.6-1.6.el5           

 corosync.i386 0:1.2.7-1.1.el5                  corosynclib.i386 0:1.2.7-1.1.el5                 

 heartbeat.i386 0:3.0.3-2.3.el5                  heartbeat-libs.i386 0:3.0.3-2.3.el5              

 libesmtp.i386 0:1.0.4-5.el5                     openais.i386 0:1.1.3-1.6.el5                      

 openaislib.i386 0:1.1.3-1.6.el5                 pacemaker.i386 0:1.1.5-1.1.el5                   

 pacemaker-cts.i386 0:1.1.5-1.1.el5              pacemaker-libs.i386 0:1.1.5-1.1.el5              

 perl-TimeDate.noarch 1:1.16-5.el5               resource-agents.i386 0:1.0.4-1.1.el5             

 

Dependency Installed:

 libibverbs.i386 0:1.1.2-4.el5    librdmacm.i386 0:1.0.8-5.el5      libtool-ltdl.i386 0:1.5.22-6.1

 lm_sensors.i386 0:2.10.7-4.el5 openhpi-libs.i386 0:2.14.0-5.el5 openib.noarch 0:1.4.1-3.el5    

 

Complete!

 

[root@node2 ~]# scp node1:/root/*.rpm ./

[root@node2 ~]# yum localinstall -y *.rpm –nogpgcheck

 

 

生成配置文档

[root@node1 ~]# cd /etc/corosync/

[root@node1 corosync]# cp corosync.conf.example corosync.conf

 

[root@node1 corosync]# vim corosync.conf

10                  bindnetaddr: 192.168.1.0

34 service {

 35          ver: 0

 36          name: pacemaker

 37 }

 38

 39 aisexec {

 40          user: root

 41          group: root

 42 }

创建目录

[root@node1 corosync]# mkdir /var/log/cluster

[root@node1 corosync]# ssh node2 'mkdir /var/log/cluster'

为了便面其他主机加入该集群，需要认证，生成一个authkey

[root@node1 corosync]# corosync-keygen

Corosync Cluster Engine Authentication key generator.

Gathering 1024 bits for key from /dev/random.

Press keys on your keyboard to generate entropy.

Writing corosync key to /etc/corosync/authkey.

拷贝文件到node2

[root@node1 corosync]# scp -p authkey corosync.conf node2:/etc/corosync/

authkey                                                           100% 128     0.1KB/s   00:00    

corosync.conf                                                     100% 540     0.

 

启动corosync服务

[root@node1 corosync]# service corosync start

Starting Corosync Cluster Engine (corosync):                [确定]

[root@node1 corosync]# ssh node2 'service corosync start'

Starting Corosync Cluster Engine (corosync): [确定]

 

验证corosync引擎是否正常启动

[root@node1 corosync]# grep -i -e "corosync cluster engine" -e "configuration file" /var/log/messages

Aug 19 19:28:24 localhost smartd[3150]: Opened configuration file /etc/smartd.conf

Aug 19 19:28:24 localhost smartd[3150]: Configuration file /etc/smartd.conf was parsed, found DEVICESCAN, scanning devices

Aug 19 19:34:45 localhost smartd[3364]: Opened configuration file /etc/smartd.conf

Aug 19 19:34:45 localhost smartd[3364]: Configuration file /etc/smartd.conf was parsed, found DEVICESCAN, scanning devices

Aug 19 19:38:06 localhost smartd[3364]: Opened configuration file /etc/smartd.conf

Aug 19 19:38:06 localhost smartd[3364]: Configuration file /etc/smartd.conf was parsed, found DEVICESCAN, scanning devices

Oct 18 10:28:01 localhost smartd[3361]: Opened configuration file /etc/smartd.conf

Oct 18 10:28:01 localhost smartd[3361]: Configuration file /etc/smartd.conf was parsed, found DEVICESCAN, scanning devices

Oct 18 11:31:23 localhost corosync[4300]:    [MAIN ] Corosync Cluster Engine ('1.2.7'): started and ready to provide service.

Oct 18 11:31:23 localhost corosync[4300]:    [MAIN ] Successfully read main configuration file '/etc/corosync/corosync.conf'.

 

查看初始化成员节点通知是否发出

[root@node1 corosync]# grep -i totem /var/log/messages

Oct 18 11:31:23 localhost corosync[4300]:    [TOTEM ] Initializing transport (UDP/IP).

Oct 18 11:31:23 localhost corosync[4300]:    [TOTEM ] Initializing transmit/receive security: libtomcrypt SOBER128/SHA1HMAC (mode 0).

Oct 18 11:31:23 localhost corosync[4300]:    [TOTEM ] The network interface [192.168.1.10] is now up.

Oct 18 11:31:24 localhost corosync[4300]:    [TOTEM ] A processor joined or left the membership and a new membership was formed.

Oct 18 11:32:34 localhost corosync[4300]:    [TOTEM ] A processor joined or left the membership and a new membership was formed.

Oct 18 11:33:50 localhost corosync[4300]:    [TOTEM ] Process pause detected for 1087 ms, flushing membership messages.

Oct 18 11:33:50 localhost corosync[4300]:    [TOTEM ] A processor failed, forming new configuration.

Oct 18 11:33:50 localhost corosync[4300]:    [TOTEM ] A processor joined or left the membership and a new membership was formed.

Oct 18 11:33:53 localhost corosync[4300]:    [TOTEM ] Process pause detected for 1759 ms, flushing membership messages.

Oct 18 11:33:53 localhost corosync[4300]:    [TOTEM ] A processor failed, forming new configuration.

Oct 18 11:33:57 localhost corosync[4300]:    [TOTEM ] A processor joined or left the membership and a new membership was formed.

Oct 18 11:34:30 localhost corosync[4300]:    [TOTEM ] A processor failed, forming new configuration.

Oct 18 11:34:34 localhost corosync[4300]:    [TOTEM ] A processor joined or left the membership and a new membership was formed.

Oct 18 11:34:35 localhost corosync[4300]:    [TOTEM ] Process pause detected for 909 ms, flushing membership messages.

Oct 18 11:34:41 localhost corosync[4300]:    [TOTEM ] Process pause detected for 910 ms, flushing membership messages.

Oct 18 11:34:41 localhost corosync[4300]:    [TOTEM ] Process pause detected for 1490 ms, flushing membership messages.

Oct 18 11:34:42 localhost corosync[4300]:    [TOTEM ] A processor joined or left the membership and a new membership was formed.

Oct 18 11:34:42 localhost corosync[4300]:    [TOTEM ] Process pause detected for 1311 ms, flushing membership messages.

Oct 18 11:34:42 localhost corosync[4300]:    [TOTEM ] A processor failed, forming new configuration.

Oct 18 11:34:42 localhost corosync[4300]:    [TOTEM ] Process pause detected for 947 ms, flushing membership messages.

Oct 18 11:34:43 localhost corosync[4300]:    [TOTEM ] A processor joined or left the membership and a new membership was formed.

Oct 18 11:35:17 localhost corosync[4300]:  [TOTEM ] A processor failed, forming new configuration.

Oct 18 11:35:20 localhost corosync[4300]:    [TOTEM ] A processor joined or left the membership and a new membership was formed.

 

检查pacemaker时候已经启动

[root@node1 corosync]# grep -i pcmk_startup /var/log/messages

Oct 18 11:31:23 localhost corosync[4300]:    [pcmk ] info: pcmk_startup: CRM: Initialized

Oct 18 11:31:23 localhost corosync[4300]:    [pcmk ] Logging: Initialized pcmk_startup

Oct 18 11:31:23 localhost corosync[4300]:    [pcmk ] info: pcmk_startup: Maximum core file size is: 4294967295

Oct 18 11:31:23 localhost corosync[4300]:    [pcmk ] info: pcmk_startup: Service: 9

Oct 18 11:31:23 localhost corosync[4300]:    [pcmk ] info: pcmk_startup: Local hostname: node1.a.com

[root@node2 ~]# grep -i pcmk_startup /var/log/messages

Oct 18 11:32:37 localhost corosync[4303]:    [pcmk ] info: pcmk_startup: CRM: Initialized

Oct 18 11:32:37 localhost corosync[4303]:    [pcmk ] Logging: Initialized pcmk_startup

Oct 18 11:32:37 localhost corosync[4303]:    [pcmk ] info: pcmk_startup: Maximum core file size is: 4294967295

Oct 18 11:32:37 localhost corosync[4303]:    [pcmk ] info: pcmk_startup: Service: 9

Oct 18 11:32:37 localhost corosync[4303]:    [pcmk ] info: pcmk_startup: Local hostname: node2.a.com

 

查看集群的成员状态

[root@node1 ~]# crm status

============

Last updated: Thu Oct 18 11:54:19 2012

Stack: openais

Current DC: node2.a.com - partition with quorum

Version: 1.1.5-1.1.el5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f

2 Nodes configured, 2 expected votes

0 Resources configured.

============

 

Online: [ node1.a.com node2.a.com ]

[root@node2 ~]# crm status

============

Last updated: Thu Oct 18 11:54:29 2012

Stack: openais

Current DC: node2.a.com - partition with quorum

Version: 1.1.5-1.1.el5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f

2 Nodes configured, 2 expected votes

0 Resources configured.

============

 

Online: [ node1.a.com node2.a.com ]

验证文件的语法错误

[root@node1 ~]# crm_verify -L

crm_verify[3639]: 2012/10/18_12:42:05 ERROR: unpack_resources: Resource start-up disabled since no STONITH resources have been defined

crm_verify[3639]: 2012/10/18_12:42:05 ERROR: unpack_resources: Either configure some or disable STONITH with the stonith-enabled option

crm_verify[3639]: 2012/10/18_12:42:05 ERROR: unpack_resources: NOTE: Clusters with shared data need STONITH to ensure data integrity

Errors found during check: config not valid

 -V may provide more details

检测到语法错误解决方法是禁用stonith

[root@node1 ~]# crm

crm(live)# configure

crm(live)configure# property stonith-enabled=false

crm(live)configure# show

node node1.a.com

node node2.a.com

property $id="cib-bootstrap-options" \

       dc-version="1.1.5-1.1.el5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f" \

       cluster-infrastructure="openais" \

       expected-quorum-votes="2" \

       stonith-enabled="false"

crm(live)configure# commit

配置资源ip

crm(live)configure# primitive webIP ocf:heartbeat:IPaddr params ip=192.168.1.100

crm(live)configure# show

node node1.a.com

node node2.a.com

primitive webIP ocf:heartbeat:IPaddr \

       params ip="192.168.1.100"

property $id="cib-bootstrap-options" \

       dc-version="1.1.5-1.1.el5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f" \

       cluster-infrastructure="openais" \

       expected-quorum-votes="2" \

       stonith-enabled="false"

crm(live)configure# commit

返回上一级查看群集状态

crm(live)configure# end

crm(live)# status

============

Last updated: Thu Oct 18 12:51:05 2012

Stack: openais

Current DC: node2.a.com - partition with quorum

Version: 1.1.5-1.1.el5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f

2 Nodes configured, 2 expected votes

1 Resources configured.

============

 

Online: [ node1.a.com node2.a.com ]

 

 webIP        (ocf::heartbeat:IPaddr):    Started node1.a.com

查看ip

[root@node1 ~]# ifconfig

eth0       Link encap:Ethernet HWaddr 00:0C:29:36:75:47 

          inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0

          inet6 addr: fe80::20c:29ff:fe36:7547/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

          RX packets:22552 errors:0 dropped:0 overruns:0 frame:0

          TX packets:33309 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:2738041 (2.6 MiB) TX bytes:3908709 (3.7 MiB)

          Base address:0x2000 Memory:c9020000-c9040000

 

eth0:0     Link encap:Ethernet HWaddr 00:0C:29:36:75:47 

          inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

          Base address:0x2000 Memory:c9020000-c9040000

 

lo         Link encap:Local Loopback 

          inet addr:127.0.0.1 Mask:255.0.0.0

          inet6 addr: ::1/128 Scope:Host

          UP LOOPBACK RUNNING MTU:16436 Metric:1

          RX packets:46 errors:0 dropped:0 overruns:0 frame:0

          TX packets:46 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:3398 (3.3 KiB) TX bytes:3398 (3.3 KiB)

 

在node2上查看

[root@node2 ~]# crm status

============

Last updated: Thu Oct 18 12:55:18 2012

Stack: openais

Current DC: node2.a.com - partition with quorum

Version: 1.1.5-1.1.el5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f

2 Nodes configured, 2 expected votes

1 Resources configured.

============

 

Online: [ node1.a.com node2.a.com ]

 

 webIP        (ocf::heartbeat:IPaddr):    Started node1.a.com

[root@node2 ~]# ifconfig

eth0       Link encap:Ethernet HWaddr 00:0C:29:C9:A7:CF 

          inet addr:192.168.1.20 Bcast:192.168.1.255 Mask:255.255.255.0

          inet6 addr: fe80::20c:29ff:fec9:a7cf/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

          RX packets:65448 errors:0 dropped:0 overruns:0 frame:0

          TX packets:56185 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:11677482 (11.1 MiB) TX bytes:7266921 (6.9 MiB)

          Base address:0x2000 Memory:c9020000-c9040000

 

lo         Link encap:Local Loopback 

          inet addr:127.0.0.1 Mask:255.0.0.0

          inet6 addr: ::1/128 Scope:Host

          UP LOOPBACK RUNNING MTU:16436 Metric:1

          RX packets:8798 errors:0 dropped:0 overruns:0 frame:0

          TX packets:8798 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:872483 (852.0 KiB) TX bytes:872483 (852.0 KiB)

定义web资源

[root@node1 ~]# yum install -y httpd

[root@node2 ~]# yum install -y httpd

[root@node1 ~]# echo "node1.a.com" >/var/www/html/index.html

[root@node2 ~]# echo "node2.a.com" >/var/www/html/index.html

 

查看httpd的参数

[root@node1 ~]# crm

crm(live)# ra

crm(live)ra# meta lsb:httpd

lsb:httpd

 

Apache is a World Wide Web server. It is used to serve \

              HTML files and CGI.

 

Operations' defaults (advisory minimum):

 

    start         timeout=15

    stop          timeout=15

    status        timeout=15

    restart       timeout=15

    force-reload timeout=15

    monitor       interval=15 timeout=15 start-delay=15

定义httpd的资源

crm(live)# configure

crm(live)configure# primitive webserver lsb:httpd

crm(live)configure# show

node node1.a.com

node node2.a.com

primitive webIP ocf:heartbeat:IPaddr \

       params ip="192.168.1.100"

primitive webserver lsb:httpd

property $id="cib-bootstrap-options" \

       dc-version="1.1.5-1.1.el5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f" \

       cluster-infrastructure="openais" \

       expected-quorum-votes="2" \

       stonith-enabled="false"

crm(live)configure# commit

查看

crm(live)# status

============

Last updated: Thu Oct 18 13:09:19 2012

Stack: openais

Current DC: node2.a.com - partition with quorum

Version: 1.1.5-1.1.el5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f

2 Nodes configured, 2 expected votes

2 Resources configured.

============

 

Online: [ node1.a.com node2.a.com ]

 

 webIP        (ocf::heartbeat:IPaddr):    Started node1.a.com

 webserver       (lsb:httpd):       Started node2.a.com

发现httpd已经启动了，但是在node2节点上高级群集服务资源越来越多，会分布在不同的节点上，以尽量负载均衡，需要约束在同一个节点上，定义成一个组

[root@node1 ~]# crm

crm(live)# configure

crm(live)configure# group web webIP webserver

crm(live)configure# show

node node1.a.com

node node2.a.com

primitive webIP ocf:heartbeat:IPaddr \

       params ip="192.168.1.100"

primitive webserver lsb:httpd

group web webIP webserver

property $id="cib-bootstrap-options" \

       dc-version="1.1.5-1.1.el5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f" \

       cluster-infrastructure="openais" \

       expected-quorum-votes="2" \

       stonith-enabled="false"

crm(live)configure# commit

查看群集的状态

crm(live)configure# end

crm(live)# status

============

Last updated: Thu Oct 18 13:17:47 2012

Stack: openais

Current DC: node2.a.com - partition with quorum

Version: 1.1.5-1.1.el5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f

2 Nodes configured, 2 expected votes

1 Resources configured.

============

 

Online: [ node1.a.com node2.a.com ]

 

 Resource Group: web

     webIP     (ocf::heartbeat:IPaddr):    Started node1.a.com

     webserver    (lsb:httpd):       Started node1.a.com

 

查看节点1状态

[root@node1 ~]# ifconfig

eth0       Link encap:Ethernet HWaddr 00:0C:29:36:75:47 

          inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0

          inet6 addr: fe80::20c:29ff:fe36:7547/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

          RX packets:46796 errors:0 dropped:0 overruns:0 frame:0

          TX packets:59188 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:6835722 (6.5 MiB) TX bytes:7309024 (6.9 MiB)

          Base address:0x2000 Memory:c9020000-c9040000

 

eth0:0     Link encap:Ethernet HWaddr 00:0C:29:36:75:47 

          inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

          Base address:0x2000 Memory:c9020000-c9040000

 

lo         Link encap:Local Loopback 

          inet addr:127.0.0.1 Mask:255.0.0.0

          inet6 addr: ::1/128 Scope:Host

          UP LOOPBACK RUNNING MTU:16436 Metric:1

          RX packets:971 errors:0 dropped:0 overruns:0 frame:0

          TX packets:971 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:97053 (94.7 KiB) TX bytes:97053 (94.7 KiB)

 

[root@node1 ~]# service httpd status

httpd (pid 3864) 正在运行...

查看节点2

[root@node2 ~]# service httpd status

httpd 已停

[root@node2 ~]# ifconfig

eth0       Link encap:Ethernet HWaddr 00:0C:29:C9:A7:CF 

          inet addr:192.168.1.20 Bcast:192.168.1.255 Mask:255.255.255.0

          inet6 addr: fe80::20c:29ff:fec9:a7cf/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

          RX packets:90716 errors:0 dropped:0 overruns:0 frame:0

          TX packets:79974 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:15007931 (14.3 MiB) TX bytes:11327408 (10.8 MiB)

          Base address:0x2000 Memory:c9020000-c9040000

 

lo         Link encap:Local Loopback 

          inet addr:127.0.0.1 Mask:255.0.0.0

          inet6 addr: ::1/128 Scope:Host

          UP LOOPBACK RUNNING MTU:16436 Metric:1

          RX packets:13129 errors:0 dropped:0 overruns:0 frame:0

          TX packets:13129 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:1302381 (1.2 MiB) TX bytes:1302381 (1.2 MiB)

[root@node2 ~]# crm status

============

Last updated: Thu Oct 18 13:23:13 2012

Stack: openais

Current DC: node2.a.com - partition with quorum

Version: 1.1.5-1.1.el5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f

2 Nodes configured, 2 expected votes

1 Resources configured.

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Online: [ node1.a.com node2.a.com ]

 

 Resource Group: web

     webIP     (ocf::heartbeat:IPaddr):    Started node1.a.com

      webserver    (lsb:httpd):       Started node1.a.com

 

测试访问192.168.1.100

 

 

现在模拟节点1死掉

[root@node1 ~]# service corosync stop

Signaling Corosync Cluster Engine (corosync) to terminate: [确定]

Waiting for corosync services to unload:...................[确定]

 

查看节点2

 

 

 

虽然node2节点在线但是所有的资源无法使用

访问网页

 

 

 

关闭quorum

[root@node1 ~]# crm

crm(live)# configure

crm(live)configure# property no-quorum-policy=ignore

crm(live)configure# show

node node1.a.com

node node2.a.com

primitive webIP ocf:heartbeat:IPaddr \

       params ip="192.168.1.100"

primitive webserver lsb:httpd

group web webIP webserver

property $id="cib-bootstrap-options" \

       dc-version="1.1.5-1.1.el5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f" \

       cluster-infrastructure="openais" \

       expected-quorum-votes="2" \

       stonith-enabled="false" \

       no-quorum-policy="ignore"

crm(live)configure# commit

 

 

再次启动节点1服务

[root@node1 ~]# service corosync start

Starting Corosync Cluster Engine (corosync):                [确定]

 

查看节点1

 

 

访问网页

 

 

 

关闭节点2服务

[root@node2 ~]# service corosync stop

Signaling Corosync Cluster Engine (corosync) to terminate: [确定]

Waiting for corosync services to unload:..........          [确定]

 

测试访问

 

 

查看节点1