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部署高可用
業務需求描述
假設有兩臺服務器data-1-1/data-1-2 其實際ip分別為192.168.0.107和192.168.0.108（data-1-2），
配置目標，要求heartbeat服務啟動后，data-1-1初始啟動vip192.168.0.07，data-1-2初始啟動vip192.168.0.08.
一旦任意一臺服務器宕機，在宕機的機器上初始啟動的虛擬vip就會切換到運轉正常的機器上，實現了ip資源的
自動接管，從而達到高可用的目的
環境里的虛擬機雙網卡橋接
[root@localhost ?~]# setup空格切換
-->network configuration-->device configuration
eth0
Name???????????????? eth0________________ │
???????????????? │ Device?????????????? eth0________________ │
???????????????? │ Use DHCP???????????? [ ]????????????????? │
???????????????? │ Static IP??????????? 192.168.0.107____________ │
???????????????? │ Netmask????????????? 255.255.255_________ │
???????????????? │ Default gateway IP?? 10.0.0.254__________ │
???????????????? │ Primary DNS Server?? ____________________ │
???????????????? │ Secondary DNS Server _____________
?? ??? ??? ??? ?
eth1 ?? ??? ??? ?
?? ??? ??? ??? ?
?? ??? ??? ??? ? Name???????????????? eth1________________ │
???????????????? │ Device?????????????? eth1________________ │
???????????????? │ Use DHCP???????????? [ ]????????????????? │
???????????????? │ Static IP??????????? 192.168.1.107___________ │
???????????????? │ Netmask????????????? 255.255.255.0_______ │
???????????????? │ Default gateway IP?? ____________________ │
???????????????? │ Primary DNS Server?? ____________________ │
???????????????? │ Secondary DNS Server ____________________

[root@localhost ?~]# /etc/init.d/network restart
Shutting down interface eth0:? Device state: 3 (disconnected)
?????????????????????????????????????????????????????????? [? OK? ]
Shutting down interface eth1:????????????????????????????? [? OK? ]
Shutting down loopback interface:????????????????????????? [? OK? ]
Bringing up loopback interface:??????????????????????????? [? OK? ]
Bringing up interface eth0:? Active connection state: activating
Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/1
state: activated
Connection activated
?????????????????????????????????????????????????????????? [? OK? ]
data-1-2?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?
?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?
?[root@localhost ?~]# setup
?-->network configuration-->device configuration
?eth0
? Name???????????????? eth0________________ │
???????????????? │ Device?????????????? eth0________________ │
???????????????? │ Use DHCP???????????? [ ]????????????????? │
???????????????? │ Static IP??????????? 192.168.0.108___________ │
???????????????? │ Netmask????????????? 255.255.255.0_______ │
???????????????? │ Default gateway IP?? 10.0.0.254__________ │
???????????????? │ Primary DNS Server?? ____________________ │
???????????????? │ Secondary DNS Server ____________________
?? ??? ??? ??? ?? Name???????????????? eth1________________ │
eth1
???????????????? │ Device?????????????? eth1________________ │
???????????????? │ Use DHCP???????????? [ ]????????????????? │
???????????????? │ Static IP??????????? 192.168.1.108___________ │
???????????????? │ Netmask????????????? 255.255.255.0______
若出現Bringing up interface eth0:? Error: Unknown connection: cfae0b8b-6a2e-4df8-a009-9c6570ca906d.
?????????????????????????????????????????????????????????? [FAILED]
那么
[root@localhost ?~]# chkconfig NetworkManager off
[root@localhost ?~]# service NetworkManager stop
分別配置主機名與hosts
[data-1-1]
[root@localhost ~]# hostname data-1-1
[root@localhost etc]# vi /etc/sysconfig/network
HOSTNAME=data-1-1
[root@localhost etc]# cd /etc
[root@localhost etc]# cp hosts hosts_bak
[root@localhost etc]#vi hosts
127.0.0.1?? localhost localhost.localdomain localhost4 localhost4.localdomain4
::1???????? localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.0.107? data-1-1
192.168.88.108? data-1-2?? ?
[root@data-1-1 ~]# tail -2 /etc/hosts
192.168.0.107??? data-1-1
192.168.0.108??? data-1-2
[root@data-1-1 ~]# uname -n
data-1-1

[data-1-2]
[root@localhost ~]# hostname data-1-2
[root@localhost etc]# vi /etc/sysconfig/network
HOSTNAME=data-1-2
[root@localhost etc]# cd /etc
[root@localhost etc]# cp hosts hosts_bak
[root@localhost etc]#vi hosts
127.0.0.1?? localhost localhost.localdomain localhost4 localhost4.localdomain4
::1???????? localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.0.107??? data-1-1
192.168.0.108??? data-1-2??????????????????? ?
[root@data-1-2 ~]# tail -2 /etc/hosts
192.168.0.107??? data-1-1
192.168.0.108??? data-1-2
[root@data-1-2 ~]# uname -n
data-1-2
[root@data-1-1 ~]# ifconfig eth1[若ip為broadcast]就 ifup eth1；同理data-1-2
eth1????? Link encap:Ethernet? HWaddr 00:0C:29:34:72:3F ?
????????? inet addr:192.168.1.107? Bcast:10.0.10.255? Mask:255.255.255.0
????????? inet6 addr: fe80::20c:29ff:fe34:723f/64 Scope:Link
????????? UP BROADCAST RUNNING MULTICAST? MTU:1500? Metric:1
????????? RX packets:7 errors:0 dropped:0 overruns:0 frame:0
????????? TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
????????? collisions:0 txqueuelen:1000
????????? RX bytes:801 (801.0 b)? TX bytes:1440 (1.4 KiB)
????????? Interrupt:16 Base address:0x2024


?? ??? ? ?
添加主機路由
[data-1-1]
[root@data-1-1 ~]# route add -host 192.168.1.108 dev eth1 [/sbin/route add -host 192.168.1.108 dev eth1]
[root@data-1-1 ~]# route -n
Kernel IP routing table
Destination???? Gateway???????? Genmask???????? Flags Metric Ref??? Use Iface
192.168.1.108?????? 0.0.0.0???????? 255.255.255.255 UH??? 0????? 0??????? 0 eth1已經配置好了
10.0.0.0??????? 0.0.0.0???????? 255.255.255.0?? U???? 0????? 0??????? 0 eth0
10.0.10.0?????? 0.0.0.0???????? 255.255.255.0?? U???? 0????? 0??????? 0 eth1
169.254.0.0???? 0.0.0.0???????? 255.255.0.0???? U???? 1002?? 0??????? 0 eth1
169.254.0.0???? 0.0.0.0???????? 255.255.0.0???? U???? 1003?? 0??????? 0 eth0
0.0.0.0???????? 10.0.0.254????? 0.0.0.0???????? UG??? 0????? 0??????? 0 eth0

echo '/sbin/route add -host 192.168.1.108 dev eth1' >>/etc/rc.local永久生效
[data-1-2]
[root@data-1-2 ~]# route add -host 192.168.1.107 dev eth1 [/sbin/route add -host 192.168.1.107 dev eth1]
[root@data-1-2 ~]# route -n
Kernel IP routing table
Destination???? Gateway???????? Genmask???????? Flags Metric Ref??? Use Iface
192.168.1.107?????? 0.0.0.0???????? 255.255.255.255 UH??? 0????? 0??????? 0 eth1
10.0.0.0??????? 0.0.0.0???????? 255.255.255.0?? U???? 0????? 0??????? 0 eth0
10.0.10.0?????? 0.0.0.0???????? 255.255.255.0?? U???? 0????? 0??????? 0 eth1
169.254.0.0???? 0.0.0.0???????? 255.255.0.0???? U???? 1002?? 0??????? 0 eth1
169.254.0.0???? 0.0.0.0???????? 255.255.0.0???? U???? 1003?? 0??????? 0 eth0
0.0.0.0???????? 10.0.0.254????? 0.0.0.0???????? UG??? 0????? 0??????? 0 eth0
echo '/sbin/route add -host 192.168.1.107 dev eth1' >>/etc/rc.local
[root@data-1-2 ~]#
安裝heart beat軟件

轉載于:https://my.oschina.net/goudingcheng/blog/599990

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