【转载】Error Code: 2006 - MySQL server has gone away

原文地址：http://hi.baidu.com/chinalwb/blog/item/8b83ce14cfa3954121a4e96c.html

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.

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类似于oracle中数据缓冲区的概念，数据量过大数据导入失败。