[root@node1 ~]# mkdir -pv /data/mysql/
[root@node1 ~]# chown mysql:mysql /data/*
[root@node1 mysql]# cd /var/lib/mysql
[root@node1 mysql]# cp -a mysql-bin.000001 mysql-bin.000002 mysql-bin.index /data/mysql/
[root@node1 ~]# vim /etc/my.cnf.d/server.cnf
  [server]
  log_bin=/data/mysql/mysql-bin
[root@node1 ~]# service mariadb restart

[root@node1 ~]# mysql
  MariaDB [(none)]> show master logs;
  +------------------+-----------+
  | Log_name     | File_size |
  +------------------+-----------+
  | mysql-bin.000001 |    264 |
  | mysql-bin.000002 |    245 |
  +------------------+-----------+

MariaDB [hellodb]> show table statusG;

[root@node1 ~]# mysqldump -uroot --single-transaction --master-data=2 --flush-logs --databases hellodb > /root/hellodb_inno.sql
--single-transaction：热备
--master-data=2：记录为注释的CHANGE MASTER TO语句
--flush-logs：日志滚动

MariaDB [(none)]> use hellodb;
MariaDB [hellodb]> insert into students (Name,Age,Gender,ClassID,TeacherID) values ('caocao',99,'M',6,8);
MariaDB [hellodb]> delete from students where stuid=3;

[root@node2 ~]# mkdir -pv /data/mysql
[root@node2 ~]# vim /etc/my.cnf
  [mysqld] 
  log_bin=/data/mysql/mysql-bin
[root@node2 ~]# chown mysql:mysql /data/*
[root@node2 ~]# chown mysql:mysql /data
[root@node2 ~]# service mariadb start

[root@node2 ~]# mysql < /root/hellodb_inno.sql
[root@node2 ~]# less hellodb_inno.sql
  -- CHANGE MASTER TO MASTER_LOG_FILE='mysql-bin.000002', MASTER_LOG_POS=245;

[root@node2 ~]# mysql
MariaDB [(none)]> use hellodb;
MariaDB [hellodb]> select * from students;
+-------+---------------+-----+--------+---------+-----------+
| StuID | Name     | Age | Gender | ClassID | TeacherID |
+-------+---------------+-----+--------+---------+-----------+
|   1 | Shi Zhongyu  | 22 | M   |    2 |     3 |
|   2 | Shi Potian  | 22 | M   |    1 |     7 |
|   4 | Ding Dian   | 32 | M   |    4 |     4 |
|   5 | Yu Yutong   | 26 | M   |    3 |     1 |
|   6 | Shi Qing   | 46 | M   |    5 |   NULL |
|   7 | Xi Ren    | 19 | F   |    3 |   NULL |
|   8 | Lin Daiyu   | 17 | F   |    7 |   NULL |
|   9 | Ren Yingying | 20 | F   |    6 |   NULL |
|  10 | Yue Lingshan | 19 | F   |    3 |   NULL |
|  11 | Yuan Chengzhi | 23 | M   |    6 |   NULL |
|  12 | Wen Qingqing | 19 | F   |    1 |   NULL |
|  13 | Tian Boguang | 33 | M   |    2 |   NULL |
|  14 | Lu Wushuang  | 17 | F   |    3 |   NULL |
|  15 | Duan Yu    | 19 | M   |    4 |   NULL |
|  16 | Xu Zhu    | 21 | M   |    1 |   NULL |
|  17 | Lin Chong   | 25 | M   |    4 |   NULL |
|  18 | Hua Rong   | 23 | M   |    7 |   NULL |
|  19 | Xue Baochai  | 18 | F   |    6 |   NULL |
|  20 | Diao Chan   | 19 | F   |    7 |   NULL |
|  21 | Huang Yueying | 22 | F   |    6 |   NULL |
|  22 | Xiao Qiao   | 20 | F   |    1 |   NULL |
|  23 | Ma Chao    | 23 | M   |    4 |   NULL |
|  24 | Xu Xian    | 27 | M   |  NULL |   NULL |
|  25 | Sun Dasheng  | 100 | M   |  NULL |   NULL |
|  26 | caocao    | 99 | M   |    6 |     8 |
+-------+---------------+-----+--------+---------+-----------+