[Msg] 2013 - Lost connection to MySQL server during query

今天在用psc备份文件恢复数据时，出现了[Msg] 2013 - Lost connection to MySQL server during query

解决方案1： 
在my.cnf文件中添加或者修改以下变量： 
max_allowed_packet = 10M(也可以设置自己需要的大小) 
max_allowed_packet 参数的作用是，用来控制其通信缓冲区的最大长度。 

方案2：

mysql> show global variables like 'max_allowed_packet';
+--------------------+---------+
| Variable_name      | Value   |
+--------------------+---------+
| max_allowed_packet | 1048576 |
+--------------------+---------+
1 row in set (0.00 sec)

修改参数：

mysql> set global max_allowed_packet=1024*1024*16;
mysql> show global variables like 'max_allowed_packet';
+--------------------+----------+
| Variable_name      | Value    |
+--------------------+----------+
| max_allowed_packet | 16777216 |
+--------------------+----------+
1 row in set (0.00 sec)