转Error Code: 2006 - MySQL server has gone away（Error Code: 2006 - MySQL 服务器已离线）

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本文详细介绍了如何解决SQLyog导入数据库时报错ErrorCode:2006-MySQLserverhasgoneaway的问题，主要是由于max_allowed_packet参数设置过小导致。提供了在Windows和Linux环境下修改my.ini和my.cnf文件的具体步骤，帮助用户解决该问题。

刚才在导入数据库的时候 SQLyog 报错了

Error Code: 2006 - MySQL server has gone away

搜了下，说是max_allowed_packet （MySQL的一个参数）设置的值不够大。

那我改下就行了嘿嘿

In Windows:

In the MySQL server installation directory,
in my.ini file, add the following line under [mysqld] in SERVER SECTION.

max_allowed_packet = 16M

In Linux:

Copy the my-xxx.cnf file from /usr/share/mysql to /etc as my.cnf

xxx can be small, medium, large, huge ... depending on the requirement.

$ cp /usr/share/mysql/my-xxx.cnf /etc/my.cnf

In the my.cnf file, change the default
max_allowed_packet = 1M
to
max_allowed_packet = 16M

Save the file and restart MySQL server.