在my.ini里面没有 那证明用的是默认值 show varialbes like '%max_allow%';看看
mysql> show variables like '%allow%'; +--------------------+---------+ | Variable_name | Value | +--------------------+---------+ | max_allowed_packet | 1048576 | +--------------------+---------+ 1 row in set (0.00 sec)
show varialbes like '%max_allow%';看看
mysql> show variables like '%allow%';
+--------------------+---------+
| Variable_name | Value |
+--------------------+---------+
| max_allowed_packet | 1048576 |
+--------------------+---------+
1 row in set (0.00 sec)
max_allow_packet='值';
重启mysql服务就可以了。