heartbeat v2版CRM的高可用web集群的实现

野性酷女 2022-02-05 05:23 194阅读 0赞

集群架构图 ：

主节点(172.16.31.10)

客户端(172.16.31.12) Vitual IP(172.16.31.166) NFS IP(172.16.31.12)

从节点(172.16.31.11)

注：心跳信息传递借助eth0网卡实现

网络以及IP地址规划如下所示：

节点类型 IP地址规划 主机名 类型

主用节点 eth0:172.16.31.10 node1 Public IP

eth0:0 :172.16.31.180 Virtual IP

备用节点 eth0:172.16.31.11 node2 Public IP

存储节点 eth0:172.16.31.12 nfs

一.关闭heartbeat服务

node1和node2都需要关闭：

\# service heartbeat stop

Stopping High-Availability services:

Done.

二.正式开始配置heartbeat v2 版本的CRM

开启heartbeat v2版本的CRM，只需要在ha.cf主配置文件末尾加入“crm on”即可，而且haresources文件设置的资源就会失效。

\[root@node1 ~\]\# cat /etc/ha.d/ha.cf |grep-v ^\#

logfacility local0

mcast eth0 225.131.31.23 694 1 0

auto\_failback on

node node1.stu31.com

node node2.stu31.com

ping 172.16.0.1

crm on

三.集群配置

**1.由于我们需要使用图形化界面配置heartbeatv2集群，而安装heartbeat后会生成一个hacluster用户，我们需要设置密码，可以让我们来访问图形化界面：**

node1和node2主机都要配置：

\# echo oracle |passwd --stdin hacluster

**2.使用Linux的GNONE桌面进入heartbeatv2 版本的图形化CRM配置：**

首先开启heartbeat服务：

\[root@node1 ~\]\# /etc/init.d/heartbeat start ; ssh node2 'service heartbeat start'

logd is already running

Starting High-Availability services:

Done.

logd is already running

Starting High-Availability services:

Done.

由于无资源配置文件，启动非常快速。

查看监听端口：

\[root@node1 ~\]\# ss -tunl |grep 5560

tcp LISTEN 0 10 \*:5560 \*:\*

**3.图形化配置**

登录GUI界面

[![wKiom1SnrwmT6jn-AACMIuAJanM601.jpg][]][wKiom1SnrwmT6jn-AACMIuAJanM601.jpg]

输入用户名密码登录：

[![wKioL1Snr-CiK\_-iAAEGsXYueDU052.jpg][wKioL1Snr-CiK_-iAAEGsXYueDU052.jpg]][wKioL1Snr-CiK_-iAAEGsXYueDU052.jpg]

**4.新建资源类型webip：定义VIP**

[![wKioL1SnsBTT5J33AAGuavXTP0o894.jpg][]][wKioL1SnsBTT5J33AAGuavXTP0o894.jpg]

[![wKiom1Snr0PjphoQAAK0S6Wh4ow659.jpg][]][wKiom1Snr0PjphoQAAK0S6Wh4ow659.jpg]

[![wKiom1Snr26DCuEPAALC4x4Id5o058.jpg][]][wKiom1Snr26DCuEPAALC4x4Id5o058.jpg]

**添加完成后就点击Add即可：**

[![wKioL1SnsD3CECI6AALhr0466eY211.jpg][]][wKioL1SnsD3CECI6AALhr0466eY211.jpg]

**5.新建资源类型webserver，定义httpd服务**

[![wKiom1Snr5Sw8blIAAJaZDEs-88387.jpg][]][wKiom1Snr5Sw8blIAAJaZDEs-88387.jpg]

**完成后启动资源测试：启动webip和webserver即可**

[![wKiom1Snr-ayjFVTAAJs51UTcEk768.jpg][]][wKiom1Snr-ayjFVTAAJs51UTcEk768.jpg]

**启动完成，但是资源未一起在同一节点启动，符合公平分配原则，我们需要使用排列约束，分组，顺序约束实现资源的启动节点。**

[![wKioL1SnsMmBOdPkAAIUrSd6Mx4563.jpg][]][wKioL1SnsMmBOdPkAAIUrSd6Mx4563.jpg]

**6.协同限制配置**

[![wKiom1SnsErCpgZdAAGukN7u4Ic579.jpg][]][wKiom1SnsErCpgZdAAGukN7u4Ic579.jpg]

**设置成webip所在节点，webserver也会在那个节点启动：**

[![wKioL1SnsSCgJu2EAAHDeanCzZ8262.jpg][]][wKioL1SnsSCgJu2EAAHDeanCzZ8262.jpg]

**效果出现，因为开始webip在node2节点启动，所以配置协同约束后，webserver自动就切换到node2启动：**

[![wKiom1SnsIHCXPtDAALQ\_-93EDY433.jpg][wKiom1SnsIHCXPtDAALQ_-93EDY433.jpg]][wKiom1SnsIHCXPtDAALQ_-93EDY433.jpg]

**7.顺序约束配置：**

[![wKioL1SnsWGhzmxSAAG357nt45Q774.jpg][]][wKioL1SnsWGhzmxSAAG357nt45Q774.jpg]

**设置先启动webip资源，然后再启动webserver资源：**

[![wKiom1SnsL6CJ6DiAALmOs9ouR0686.jpg][]][wKiom1SnsL6CJ6DiAALmOs9ouR0686.jpg]

**8.位置约束：让资源偏向运行于某个节点**

[![wKioL1SnsY6yO8lMAAHJ8hY7LAI282.jpg][]][wKioL1SnsY6yO8lMAAHJ8hY7LAI282.jpg]

[![wKiom1SnsOSAJof4AAHjB\_XHQ4g311.jpg][wKiom1SnsOSAJof4AAHjB_XHQ4g311.jpg]][wKiom1SnsOSAJof4AAHjB_XHQ4g311.jpg]

**表达式判断：uname eq node1.stu31.com ,偏向于node1节点：**

[![wKioL1Snsa7zEJ5eAAMcjN6h9gI335.jpg][]][wKioL1Snsa7zEJ5eAAMcjN6h9gI335.jpg]

[![wKiom1SnsQuzztHIAALq9iKij7s747.jpg][]][wKiom1SnsQuzztHIAALq9iKij7s747.jpg]

**9.配置NFS服务器**

配置nfs服务器

\[root@nfs ~\]\# mkdir /www/htdocs -pv

\[root@nfs ~\]\# vim /etc/exports

www/htdocs 172.16.31.0/16(rw,no\_root\_squash)

\[root@nfs ~\]\# service nfs start

\[root@nfs ~\]\# showmount -e172.16.31.12

Export list for 172.16.31.12:

/www/htdocs 172.16.31.0/16

创建一个测试网页：

\[root@nfs ~\]\# echo "page from nfsfilesystem" > /www/htdocs/index.html

客户端node1挂载nfs文件系统：

\[root@node1 ~\]\# mount -t nfs 172.16.31.12:/www/htdocs/var/www/html/

\[root@node1 ~\]\# ls /var/www/html/

index.html

访问测试：

\[root@nfs ~\]\# curl http://172.16.31.166

page from nfs filesystem

卸载nfs：

\[root@node1 ~\]\# umount /var/www/html/

**10.使用集群图形化客户端配置添加存储资源**

添加存储：

[![wKiom1SnsWSAFodqAAILkKc37VE566.jpg][]][wKiom1SnsWSAFodqAAILkKc37VE566.jpg]

[![wKioL1Snsg-RyypXAAKol5Ps5s8759.jpg][]][wKioL1Snsg-RyypXAAKol5Ps5s8759.jpg]

**启动存储**

**11.协同约束配置**

[![wKioL1SnsqaQuRdSAAOMxbch058881.jpg][]][wKioL1SnsqaQuRdSAAOMxbch058881.jpg]

**顺序约束配置：**

先启动webip,然后启动webstore，最后启动webserver

[![wKiom1SnskSTFfcxAANVM6PerXk239.jpg][]][wKiom1SnskSTFfcxAANVM6PerXk239.jpg]

查看节点IP地址：主节点在node1上

\[root@node1 ~\]\# ip addr show

1: lo: <LOOPBACK,UP,LOWER\_UP> mtu65536 qdisc noqueue state UNKNOWN

link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

inet 127.0.0.1/8 scope host lo

inet6 ::1/128 scope host

valid\_lft forever preferred\_lft forever

2: eth0:<BROADCAST,MULTICAST,UP,LOWER\_UP> mtu 1500 qdisc pfifo\_fast state UP qlen1000

link/ether 08:00:27:db:35:e6 brd ff:ff:ff:ff:ff:ff

inet 172.16.31.10/16 brd 172.16.255.255 scope global eth0

inet 172.16.31.166/16 brd 172.16.31.255 scope global secondary eth0:0

inet6 fe80::a00:27ff:fedb:35e6/64 scope link

valid\_lft forever preferred\_lft forever

网页访问:

\[root@nfs ~\]\# curl http://172.16.31.166

page from nfs filesystem

由于使用的是共享文件系统，所以访问的网页是文件系统中的资源！

本文转自 dengaosky 51CTO博客，原文链接：http://blog.51cto.com/dengaosky/1964581，如需转载请自行联系原作者

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