keepalived和redis主从方案

来源：互联网发布：数据库人事管理系统编辑：程序博客网时间：2024/05/18 00:48

实现切换逻辑：
redis 主和 redis从正常同步；
redis主keepalived 启动，执行redis_master.sh脚本，vip在自己身上；
redis 从keepalived 启动，执行redis_slave.sh脚本；
redis主服务关闭，则redis主执行redis_fault.sh脚本， vip落在redis 从上，redis从执行redis_master.sh脚本，变成主；
redis主服务开启，则redis主执行redis_slave.sh脚本变成从，vip还在redis 从上，还是主；
redis从服务关闭，则redis从执行redis_fault.sh脚本， vip落在redis主上，redis主执行redis_master.sh脚本，变成主；
redis从服务开启，则redis从执行redis_slave.sh脚本变成从， vip还在redis主上，redis主继续做主
具体配置：
主服务器IP：172.188.1.2，从服务器IP：172.188.1.3，172.188.1.1 vip服务器
主从服务器都安装keepalived和redis
修改从服务器 redis.conf配置文件
slaveof 192.168.1.235 6379
主服务器keepalived配置文件
global_defs {
router_id LVS_DEVEL
}
vrrp_script chk_redis {
script "/etc/keepalived/scripts/redis_check.sh"
interval 1
}
vrrp_instance mes_Redis {
state MASTER
interface eth0
garp_master_delay 10
smtp_alert
virtual_router_id 3
priority 100
nopreempt
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
172.188.1.1
}
track_script {
chk_redis
}
notify_master /etc/keepalived/scripts/redis_master.sh
notify_backup /etc/keepalived/scripts/redis_slave.sh
notify_fault /etc/keepalived/scripts/redis_fault.sh
notify_stop /etc/keepalived/scripts/redis_stop.sh
}
从服务器keepalived配置文件
global_defs {
router_id LVS_DEVEL
}
vrrp_script chk_redis {
script "/etc/keepalived/scripts/redis_check.sh"
interval 1
}
vrrp_instance mes_Redis {
state BACKUP
interface eth0
garp_master_delay 10
smtp_alert
virtual_router_id 3
priority 90
nopreempt
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
172.188.1.1
}
track_script {
chk_redis
}
notify_master /etc/keepalived/scripts/redis_master.sh
notify_backup /etc/keepalived/scripts/redis_slave.sh
notify_fault /etc/keepalived/scripts/redis_fault.sh
notify_stop /etc/keepalived/scripts/redis_stop.sh
}·

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