测试环境

系统：WIN 10

MySQL版本：mysql-5.7.23

安装配置

解压文件

使用mysql-5.7.23-winx64.zip包解压缩安装

路径分别为：

D:\mysql\mysql-5.7.23-winx64

D:\mysql\mysql-5.7.23-winx64-3307

解压安装路径随意指定，注意需要与my.ini文件中的路径一致

my.ini配置文件

分别在两个目录中创建my.ini 文件

在同一台机器上测试，mysql实例使用不同端口

主数据库：3306 (默认)

从数据库：3307

内容如下：

主库my.ini

[mysqld]

# set basedir to your installation path

basedir=D:/mysql/mysql-5.7.23-winx64

# set datadir to the location of your data directory

datadir=D:/mysql/mysql-5.7.23-winx64/data

# 唯一标识

server-id=1

# binlog文件名(可以不指定)

log-bin=mysql-binlog

# 要写binlog的数据库，要同步多个数据库，就多加几个binlog-do-db=数据库名

binlog-do-db=mstest

binlog-do-db=test

# 要忽略的数据库

binlog-ignore-db=mysql

从库my.ini

[mysqld]

# 指定端口

port=3307

# set basedir to your installation path

basedir=D:/mysql/mysql-5.7.23-winx64-3307

# set datadir to the location of your data directory

datadir=D:/mysql/mysql-5.7.23-winx64-3307/data

# 唯一标识

server-id=2

# 要复制多个数据库，就多加几个replicate-do-db=数据库名

replicate-do-db=mstest

replicate-do-db=test

# 要忽略的数据库

replicate-ignore-db=mysql

初始化并启动数据库

分别初始化、启动两个数据库，并修改root密码

mysqld --initialize --console

mysqld.exe --console

ALTER USER 'root'@'localhost' IDENTIFIED BY 'root';

具体见安装文档

数据库配置

主库配置

登录主库

>mysql -uroot -p

主数据库创建用于同步的用户

GRANT REPLICATION SLAVE ON *.* TO 'mstest'@'%' IDENTIFIED BY '123456';

从数据库配置

登录从库，指定端口3307

>mysql -uroot -p -P3307

配置从库连接到主库

change master to master_host='127.0.0.1',master_port=3306,

master_user='mstest',master_password='123456';

start slave;

查看状态

主库

mysql> show master status;

+---------------------+----------+--------------+------------------+-------------------+

| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |

+---------------------+----------+--------------+------------------+-------------------+

| mysql-binlog.000002 | 313 | mstest,test | mysql | |

+---------------------+----------+--------------+------------------+-------------------+

1 row in set (0.00 sec)

从库

mysql> show slave status\G

*************************** 1. row ***************************

Slave_IO_State: Waiting for master to send event

Master_Host: 127.0.0.1

Master_User: mstest

Master_Port: 3306

Connect_Retry: 60

Master_Log_File: mysql-binlog.000002

Read_Master_Log_Pos: 1306

Relay_Log_File: wwh-relay-bin.000005

Relay_Log_Pos: 323

Relay_Master_Log_File: mysql-binlog.000002

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

Replicate_Do_DB: mstest,test

Replicate_Ignore_DB: mysql

......

......

......

Master_Server_Id: 1

Master_UUID: ea65d565-a8a0-11e8-807e-0a002700000a

Master_Info_File: D:\mysql\mysql-5.7.23-winx64-3307\data\master.info

SQL_Delay: 0

SQL_Remaining_Delay: NULL

Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates

Master_Retry_Count: 86400

......

......

1 row in set (0.00 sec)

同步测试

创建数据库

主库创建表，从库查看

主库插入记录，从库查看

mysql> create database test;

Query OK, 1 row affected (0.01 sec)

mysql> show databases;

+--------------------+

| Database |

+--------------------+

| information_schema |

| mysql |

| performance_schema |

| sys |

| test |

| wwh |

+--------------------+

6 rows in set (0.00 sec)

mysql> status;

--------------

mysql Ver 14.14 Distrib 5.7.23, for Win64 (x86_64)

Connection id: 2

Current database:

Current user: root@localhost

SSL: Not in use

Using delimiter: ;

Server version: 5.7.23 MySQL Community Server (GPL)

Protocol version: 10

Connection: localhost via TCP/IP

Server characterset: latin1

Db characterset: latin1

Client characterset: gbk

Conn. characterset: gbk

TCP port: 3307

Uptime: 7 min 37 sec

show binlog events\G

show master status\G

查询命令

在master上查看当前有多少个从节点

select * from information_schema.processlist as p where p.command = 'Binlog Dump';