目录
- 1.环境规划
- 2.所有MySQL都开启binlog功能，确保所有MySQL的server-id不同
- 3.主库授权主从复制用户
- 4.主库将数据库数据做全备，然后将备份文件推送到从库
- 5.从库将备份文件恢复到数据库
- 6.从库上找到binlog位置点
- 7.从库配置主从复制参数
- 8.主库创建数据库，然后到从库验证数据是否同步
1.环境规划
| 主机名 | 角色 | IP地址 |
|---|---|---|
| db01 | MySQL主库 | 10.0.0.51 |
| db02 | MySQL从库 | 10.0.0.52 |
2.所有MySQL都开启binlog功能，确保所有MySQL的server-id不同
主库：
[mysqld]
basedir=/application/mysql
datadir=/application/mysql/data
socket=/application/mysql/tmp/mysql.sock
port=3306
server_id=10
log-error=/var/log/mysql.log
log-bin=/data/binlog/mysql-bin
sync_binlog=1
binlog_format=row
从库：
[mysqld]
basedir=/application/mysql
datadir=/application/mysql/data
socket=/application/mysql/tmp/mysql.sock
port=3306
server_id=11
log-error=/var/log/mysql.log
log-bin=/data/binlog/my-bin
sync_binlog=1
binlog_format=row
3.主库授权主从复制用户
mysql> grant replication slave on *.* to rep@'10.0.0.%' identified by '123456';
4.主库将数据库数据做全备，然后将备份文件推送到从库
[root@db01 ~]# mysqldump -uroot -p123 -A -B -R --master-data=2 --single-transaction |gzip >/backup/full_$(date +%F).sql.gz
[root@db01 ~]# scp /backup/full_2020-04-09.sql.gz [email protected]:/backup
5.从库将备份文件恢复到数据库
[root@db02 ~]# gunzip /backup/full_2020-04-09.sql.gz
mysql> source /backup/full_2020-04-09.sql
mysql> show databases;
6.从库上找到binlog位置点
[root@db02 ~]# sed -n '22p' /backup/full_2020-04-09.sql
7.从库配置主从复制参数
mysql> change master to
-> master_host='10.0.0.51',
-> master_port=3306,
-> master_user='rep',
-> master_password='123456',
-> master_log_file='mysql-bin.000008',
-> master_log_pos=1100;
mysql> start slave;
mysql> show slave status\G
8.主库创建数据库，然后到从库验证数据是否同步
db01：
mysql> create database test1;
db02：
mysql> show databases;