ERROR 2006 (HY000): MySQL server has gone away

当你要导入一个比较大的mysql数据库的时候,可能会产生这个错误:

mysql> source file.sql
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id: 2
Current database: *** NONE ***

ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id: 3
Current database: *** NONE ***

这是因为max_allowed_packet设置的太小了,再/etc/my.cnf中,将这个参数设置为64M或者根据实际情况设为更大的值就可以了

max_allowed_packet=64M

mysql文档:

https://dev.mysql.com/doc/refman/5.5/en/replication-features-max-allowed-packet.html

 

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