新的ecshop商城网站用久了，在订单提交时候可能会出现如下报错：
MySQL server error report:Array ( [0] => Array ( [message] => MySQL Query Error ) [1] => Array ( [sql] => SELECT card_sn, card_password, end_date, crc32 FROM `shop`.`ecs_virtual_card` WHERE goods_id= '8' AND order_sn = '2008071156186' ) [2] => Array ( [error] => MySQL server has gone away ) [3] => Array ( [errno] => 2006 ) ) MySQL server error report:Array ( [0] => Array ( [message] => MySQL Query Error ) [1] => Array ( [sql] => SELECT card_sn, card_password, end_date, crc32 FROM `shop`.`ecs_virtual_card` WHERE goods_id= '8' AND order_sn = '2008071156186' ) [2] => Array ( [error] => MySQL server has gone away ) [3] => Array ( [errno] => 2006 ) [4] => Array ( [message] => MySQL Query Error ) [5] => Array ( [sql] => DESC `shop`.`ecs_sessions_data` ) [6] => Array ( [error] => MySQL server has gone away ) [7] => Array ( [errno] => 2006 ) )

这里最模板提供详细的解决方法步骤：

1. 先确定服务器数据库未满，若空间不足，增加硬盘存储空间或清理其他文件

2. 清空
ecs_sessions
ecs_sessions_data
ecs_carts
三个表，在phpmyadmin命令
TRUNCATE `ecs_cart`;
TRUNCATE `ecs_sessions`;
TRUNCATE `ecs_sessions_data`;
//www.zuimoban.com

3.设置php程序最长运行时间 max_execution_time，如3000秒。
找到php.ini文件，设置代码

max_execution_time = 3000


4. 检查ECSHOP后台是否设置了订单提交有邮件提醒等设置，再ECSHOP网站后台点清空缓存，服务器重启。

结果以上四个步骤，基本网站正常。 如果还是不行，考虑是硬件问题，该升级服务器了！