MySQL8 Keepalived+双主

; set password for ‘ root ‘ @ ‘ localhost ‘ = ‘ 123456 ‘ ; grant all privileges on *.* to root@ ‘ localhost ‘ with grant option; create user ‘ repl ‘ @ ‘ win88.inno测试数据 ‘ identified WITH mysql_native_password by ‘ 123456 ‘ PASSWORD EXPIRE NEVER ; grant replication slave on *.* to ‘ repl ‘ @ ‘ win88.inno测试数据 ‘ with grant option; create user ‘ repl ‘ @ ‘ win89.inno测试数据 ‘ identified WITH mysql_native_password by ‘ 123456 ‘ PASSWORD EXPIRE NEVER ; grant replication slave on *.* to ‘ repl ‘ @ ‘ win89.inno测试数据 ‘ with grant option; create user ‘ repl ‘ @ ‘ 192.168.68.88 ‘ identified WITH mysql_native_password by ‘ 123456 ‘ PASSWORD EXPIRE NEVER ; grant replication slave on *.* to ‘ repl ‘ @ ‘ 192.168.68.88 ‘ with grant option; create user ‘ repl ‘ @ ‘ 192.168.68.89 ‘ identified WITH mysql_native_password by ‘ 123456 ‘ PASSWORD EXPIRE NEVER ; grant replication slave on *.* to ‘ repl ‘ @ ‘ 192.168.68.89 ‘ with grant option; flush privileges; SET SQL_LOG_BIN = 1 ;

配置主从

设 win88.inno测试数据 的主机

change master to master_host= ‘  win89.inno测试数据  ‘ ,master_port= 3308 ,master_user= ‘  repl  ‘ ,master_password= ‘  123456  ‘ ,master_auto_position= 1  ; 
start slave; 
show slave status\G 

设 win89.inno测试数据 的主机

 

change master to master_host= ‘  win88.inno测试数据  ‘ ,master_port= 3308 ,master_user= ‘  repl  ‘ ,master_password= ‘  123456  ‘ ,master_auto_position= 1  ; 
start slave; 
show slave status\G 

 

设置mysql 开机自启

 cp  -p /data/mysql/support-files/mysql.server /etc/init.d/ mysqld
chkconfig  -- add mysqld
  cp  -p /data/ 3308 /my.cnf    /etc/my.cnf.d/my.cnf
chkconfig --list

安装keepalive

 yum  -y  install  keepalived

win89.inno测试数据 的keepalived 设定

[root@win89 ~]#  cat  /etc/keepalived/ keepalived.conf
 ! Configuration File  for   keepalived

global_defs {
   router_id mysql_slave_
   vrrp_skip_check_adv_addr
   vrrp_script check_run {
   script   "  /data/mysql_check.sh  "  
   interval   10  
}
   vrrp_garp_interval   0  
   vrrp_gna_interval   0  
}

vrrp_instance VI_1 {
    state BACKUP
    interface ens160
    virtual_router_id   51  
    priority   90  
    advert_int   1  
    authentication {
        auth_type PASS
        auth_pass   1111  
    }
    virtual_ipaddress {
          192.168 . 68.188  
    }
    track_script {
    check_run
    }
}

virtual_server   192.168 . 68.188   3308   {
    delay_loop   6  
    lb_algo wrr
    lb_kind DR
    nat_mask   255.255 . 255.0  
    persistence_timeout   50  
    protocol TCP

    real_server   192.168 . 68.89   3308   {
        weight   1  
        TCP_CHECK {
            connect_timeout   3  
            nb_get_retry   3  
            connect_port   3308  
        }
    }
} 

win88.inno测试数据 的keepalived 设定

[root@win88 ~]#  cat  /etc/keepalived/ keepalived.conf
 ! Configuration File  for   keepalived

global_defs {
   router_id mysql_master_
   vrrp_skip_check_adv_addr
   vrrp_script check_run {
   script   "  /data/mysql_check.sh  "  
   interval   10  
}
   vrrp_garp_interval   0  
   vrrp_gna_interval   0  
}

vrrp_instance VI_1 {
    state BACKUP
    interface ens160
    virtual_router_id   51  
    priority   100  
    advert_int   1  
    authentication {
        auth_type PASS
        auth_pass   1111  
    }
    virtual_ipaddress {
          192.168 . 68.188  
    }
    track_script {
    check_run
    }
}

virtual_server   192.168 . 68.188   3308   {
    delay_loop   6  
    lb_algo wrr
    lb_kind DR
    nat_mask   255.255 . 255.0  
    persistence_timeout   50  
    protocol TCP

    real_server   192.168 . 68.88   3308   {
        weight   1  
        TCP_CHECK {
            connect_timeout   3  
            nb_get_retry   3  
            connect_port   3308  
        }
    }
} 

 设置keepalived 开机自启

  systemctl enable keepalived
  systemctl start keepalived

 

MySQL8 Keepalived+双主

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