Home >Database >Mysql Tutorial >What is the \'max_allowed_packet\' Variable in MySQL and How Do I Modify It?
Understanding 'max_allowed_packet' Variable
MySQL utilizes the 'max_allowed_packet' variable to specify the maximum size allowed for data packets transmitted across the network. Exceeding this limit results in the "Got a packet bigger than 'max_allowed_packet' bytes" error message.
Checking the Current 'max_allowed_packet' Value
To ascertain the current value of this variable, execute the following query:
SHOW VARIABLES LIKE 'max_allowed_packet';
Setting the 'max_allowed_packet' Variable
While this variable is typically set in the MySQL configuration file (my.cnf), you can also attempt to modify it dynamically using a PHP script:
SET GLOBAL max_allowed_packet=16777216;
Important Note
It's crucial to note that hosting providers may not allow users to modify server settings such as 'max_allowed_packet'. For shared hosting environments, it's recommended to contact your provider to inquire about the possibility of increasing this variable's value.
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