MySQL双主+Keepalived高可用4

巴黎的灯光下

四 安装Keepalived4.1 下载[url=][/url]
  1 [root@Master01 ~]# wget http://www.keepalived.org/software/keepalived-1.3.6.tar.gz  2 [root@Master01 ~]# tar -zvxf keepalived-1.3.6.tar.gz -C /tmp/  3 [root@Master01 ~]# cd /tmp/keepalived-1.3.6  4 [root@Master01 keepalived-1.3.6]# ./configure --prefix=/usr/local/keepalived/ --sysconf=/etc --with-init=SYSV  5 #注：(upstart|systemd|SYSV|SUSE|openrc) #根据你的系统选择对应的启动方式  6 [root@Master01 keepalived-1.3.6]# make && make install  7 [root@Master01 ~]# ln -s /usr/local/keepalived/sbin/keepalived /sbin  8 [root@Master01 ~]# chmod u+x /etc/init.d/keepalived  9 [root@Master01 ~]# chkconfig --add keepalived 10 [root@Master01 ~]# chkconfig --level 35 keepalived on[url=][/url]

注意：Master02上也需要如上操作。

若出现以下提示，需要执行：yum -y install openssl-devel。

提示：也可采用yum install -y keepalived安装（个人不建议）。

4.2 Master01配置Keepalived

默认情况下keepalived启动时会去/etc/keepalived目录下找配置文件。

[url=][/url]
  1 [root@Master01 ~]# vim /etc/keepalived/keepalived.conf  2 ! Configuration File for keepalived  3 global_defs {  4    notification_email {  5     x120952576@126.com  6 #表示keepalived在发生诸如切换操作时发送Email给哪些地址，邮件地址可以多个，每行一个。  7    }  8    notification_email_from Alexandre.Cassen@firewall.loc  9    smtp_server 172.24.8.10 10    smtp_connect_timeout 30 11    router_id LVS_DEVEL 12 } 13 vrrp_instance VI_1 { 14     state BACKUP 15     interface eth0 16     virtual_router_id 51 17 #这里设置VRID，这里非常重要，相同的VRID为一个组，他将决定多播的MAC地址 18     priority 100 19     advert_int 1 20     nopreempt 21 #不抢占，只在优先级高的机器上设置即可，优先级低的机器不设置 22     authentication { 23         auth_type PASS 24         auth_pass 1111 25     } 26 track_script { 27     check_mysqld                #执行定义的监控脚本 28 } 29     virtual_ipaddress { 30         172.24.8.12 31     } 32 } 33 vrrp_script check_mysqld { 34     script"/etc/keepalived/mysqlcheck/keepalived_check_mysql.sh " 35     interval 2 36 }[url=][/url]