MySQL：Got a packet bigger than ‘max_ allowed_ packet‘ bytes

We went to MySQL When importing data , When there's too much data , You're going to report a mistake ：

Got a packet bigger than 'max_allowed_packet' bytes

This is because the maximum data allowed exceeds our default setting , So we need to change it MySQL Default Settings

1、 command

• View the current configuration parameters

SHOW VARIABLES LIKE '%max_allowed_packet%';

4194304/1024/1024=4M, That is to say, the maximum data allowed by our default configuration is 4M

• Modify the current configuration

SET GLOBAL max_allowed_packet = 50 * 1024 * 1024;

In this way, we modify the maximum data allowed to be 50M

2、 The configuration file

• Windows In the environment
  Find... In the following path my.ini file

C:\ProgramData\MySQL\MySQL Server 5.7\my.ini

• Linux In the environment
  You can enter a command to find

whereis my.cnf

After finding the configuration file , Add parameters

max_allowed_packet=52428800

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