MySQL常用:Got a packet bigger than 'max_allowed_packet' bytes & MySQL开远程服务
1. 数据导入时出现错误
Got a packet bigger than 'max_allowed_packet' bytes
通过终端进入mysql控制台
- mysql>show VARIABLES like '%max_allowed_packet%';
- +--------------------------+------------+
- | Variable_name | Value |
- +--------------------------+------------+
- | max_allowed_packet | 4194304 |
- | slave_max_allowed_packet | 1073741824 |
- +--------------------------+------------+
- mysql>set global max_allowed_packet = 1048576*100;
默认值4M大小
2. 简便方式开启MySQL远程访问服务
查看用户访问权限
- mysql>use mysql;
- Database changed
- mysql> select host, user, password from user;
新建用户方式
- mysql>grant all on *.* to newUser@'%' identified by 'newPassword' with grant option;
- mysql>flush privileges;
root用户授权方式
- mysql>grant all privileges on *.* to 'root'@'%' identified by 'password' with grant option;
- mysql>flush privileges;
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