标签：messages live glob lb01 sql ref virt star log
1.安装
方法一：
yum install psmisc wget http://www.keepalived.org/software/keepalived-1.2.12.tar.gz tar xf keepalived-1.2.12.tar.gz cd keepalived-1.2.12 ./configure --prefix=/usr/local/keepalived make && make install cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/ cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/ mkdir /etc/keepalived cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/ cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
方法二：
yum -y install keepalived
2.配置keepalived的配置文件
vi /etc/keepalived/keepalived.conf
! Configuration File for keepalived
global_defs {
router_id haproxy_mysql #keepalived组的名称
}
vrrp_script chk_haproxy {
script "/usr/bin/sh /etc/keepalived/check_haproxy.sh"
interval 2
weight 2
}
vrrp_instance VI_HAPROXY {
state MASTER #备份机是BACKUP
#nopreempt #非抢占模式
interface ens33
virtual_router_id 51 #同一集群中该数值要相同,只能从1-255
priority 100 //备库可以90
advert_int 1
authentication {
auth_type PASS #Auth 用密码，但密码不要超过8位
auth_pass 1111
}
virtual_ipaddress {
10.10.48.240
}
track_script {
chk_haproxy
}
}
3.配置监控脚本：
vi /etc/keepalived/check_haproxy.sh
#!/bin/bash
if [ `ps -C mysqld --no-header |wc -l` -eq 0 ];then
systemctl stop keepalived
elif [ `ps -C haproxy --no-header |wc -l` -eq 0 ]; then
/usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg
sleep 3
if [ `ps -C haproxy --no-header |wc -l` -eq 0 ];then
/etc/init.d/keepalived stop
fi
fi
4.配置keepalived日志单独存放
默认日志存放在系统日志：/var/log/messages下 修改/etc/sysconfig/keepalived 把KEEPALIVED_OPTIONS="-D" 修改为：KEEPALIVED_OPTIONS="-D -d -S 0" touch /var/log/keepalived.log 在/etc/rsyslog.conf 末尾添加 [root@lb01 /]# vim /etc/rsyslog.conf local0.* /var/log/keepalived.log 重启日志记录服务 /etc/init.d/rsyslog restart Shutting down system logger: [ OK ] Starting system logger: [ OK ] 或者 systemctl restart rsyslog
5.启动keepalived服务，查看日志
/etc/init.d/keepalived start vi /var/log/keepalived
标签：messages live glob lb01 sql ref virt star log
原文地址：https://www.cnblogs.com/EikiXu/p/10579957.html
