1. 实验环境

系统环境：CentOS7.3

两个节点：

主节点host3_13 IP地址：192.168.10.13

从节点host4_14 IP地址：192.168.10.14

同步时间：工具ntpdate

2. 搭建环境：

安装软件

两个节点做同样的工作，这里只放一个节点的图

同步时间

作为主从复制，时间同步是最基本的设置！最基本的满足条件！

主节点

从节点

3. 配置主节点

主节点做三件事：
   （1）对主服务器节点设置一个server-id
   （2）启用二进制日志
   （3）创建一个拥有复制权限的用户账号

修改 Mariadb-server 配置文件 /etc/my.cnf.d/server.cnf ：

创建一个拥有复制权限的用户账号：

[root@host3 mysql]#mysql
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 3
ongoingServer version: 5.5.52-MariaDB MariaDB Server

Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

######  创建一个拥有复制权限的用户账号  ######
MariaDB [(none)]> grant replication client,replication slave on *.* to 'repluser'@'19'192.168.10.%' identified by 'replpass';
Query OK, 0 rows affected (0.01 sec)

MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> show master status;
+-------------------+----------+--------------+------------------+
| File              | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+-------------------+----------+--------------+------------------+
| master-log.000003 |      498 |              |                  |
+-------------------+----------+--------------+------------------+
1 row in set (0.00 sec)

MariaDB [(none)]> show binlog events in 'master-log.000003';
+-------------------+-----+-------------+-----------+-------------+---------------------------------------------------------------------------------------------------------+
| Log_name          | Pos | Event_type  | Server_id | End_log_pos | Info                                                                                                    |
+-------------------+-----+-------------+-----------+-------------+---------------------------------------------------------------------------------------------------------+
| master-log.000003 |   4 | Format_desc |         1 |         245 | Server ver: 5.5.52-MariaDB, Binlog ver: 4                                                               |
| master-log.000003 | 245 | Query       |         1 |         423 | grant replication client,replication slave on *.* to 'repluser'@'192.168.10.%' identified by 'replpass' |
| master-log.000003 | 423 | Query       |         1 |         498 | flush privileges                                                                                        |
+-------------------+-----+-------------+-----------+-------------+---------------------------------------------------------------------------------------------------------+
3 rows in set (0.00 sec)

MariaDB [(none)]>