MySQL ERROR 2006 (HY000): MySQL server has gone away

mysql> CREATE USER 'zth'@'localhost';

ERROR 2006 (HY000): MySQL server has gone away

No connection. Trying to reconnect...

Connection id:    3

Current database: *** NONE ***

Query OK, 0 rows affected (0.03 sec)

解决：

mysql> SET SESSION wait_timeout = 600;

Query OK, 0 rows affected (0.01 sec)