在 Windows 配置 Mysql 主从服务器

x33g5p2x  于2021-11-11 转载在 Mysql  
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一 主服务器配置

[mysqld]

开启日志

log-bin=mysql-bin

设置服务id,主从不能一致

server-id=1

设置需要同步的数据库

binlog-do-db=user_db

屏蔽系统库同步

binlog-ignore-db=mysql

binlog-ignore-db=information_schema

binlog-ignore-db=performance_schema

二 从服务器配置

[mysqld]

开启日志

log-bin=mysql-bin

设置服务id,主从不能一致

server-id=2

设置需要同步的数据库

replicate_wild_do_table=user_db.%

屏蔽系统库同步

replicate_wild_ignore_table=mysql.%

replicate_wild_ignore_table=information_schema.%

replicate_wild_ignore_table=performance_schema.%

三 主从服务器重启测试

四 创建用于主从复制的账号

# 切换至主库 bin 目录,登录主库
mysql -h localhost -u root -p
# 授权主备复制专用账号
GRANT REPLICATION SLAVE ON *.* TO 'db_sync'@'%' IDENTIFIED BY 'db_sync';
# 刷新权限
FLUSH PRIVILEGES;

# 确认位点,记录下文件名以及位点
show master status;
+------------------+----------+--------------+---------------------------------------------+-------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB                            | Executed_Gtid_Set |
+------------------+----------+--------------+---------------------------------------------+-------------------+
| mysql-bin.000002 |      154 | user_db      | mysql,information_schema,performance_schema |                   |
+------------------+----------+--------------+---------------------------------------------+-------------------+
1 row in set (0.00 sec)

五 主从数据同步设置

# 切换至从库bin目录,登录从库
mysql -h localhost -P3307 -u root -p
# 先停止同步
STOP SLAVE;
# 修改从库指向到主库,使用上一步记录的文件名以及位点
CHANGE MASTER TO
master_host = 'localhost',
master_user = 'db_sync',
master_password = 'db_sync',
master_log_file = 'mysql-bin.000002',
master_log_pos = 154;
# 启动同步
START SLAVE;
# 查看 Slave_IO_Runing 和 Slave_SQL_Runing 字段值都为 Yes,表示同步配置成功。如果不为Yes,需要排查相关异常。
show slave status;

报错
Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs must be different for replication to work.

方案

故障案例:主从同步报错Fatal error: The slave I/O thread stops because master and slave have equal MySQL server_cug_jiang126com的专栏-CSDN博客

六 测试

1 主库修改如下

** 2 从库同步修改**

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