PGSQL主从+keepalived高可用配置

环境说明：

主机与IP：

192.168.11.177 主库

192.168.11.180 备库 

192.168.11.210  VIP 

 

系统：

centos7.2

 

PGSQL9.6主从已安装配置完成（参考我之前的博客）

 

安装配置：

1、安装配置keepalived

主备安装：

# yum install -y keepalived

 

主配置：

# vi /etc/keepalived/keepalived.conf

bal_defs {

   smtp_server 127.0.0.1

   smtp_connect_timeout 30

   router_id pg

}

 

vrrp_script chk_pgsql {

   script "/etc/keepalived/scripts/pgsql_check.sh"

   interval 2

   weight -5

   fall 2

   rise 1

}

 

vrrp_instance VI_1 {

    state BACKUP 

    interface eth0

    virtual_router_id 61

    priority 100

    nopreempt

    advert_int 1

    authentication {

        auth_type PASS

        auth_pass 1111

    }

       track_script {

       chk_pgsql

    }

    virtual_ipaddress {

        192.168.11.210

    }

}

 

备配置：

# vi /etc/keepalived/keepalived.conf

bal_defs {

   smtp_server 127.0.0.1

   smtp_connect_timeout 30

   router_id pg

}

 

vrrp_script chk_pgsql {

&nbs