Encountering a Warning: Error while sending QUERY packet can disrupt your website's functionality and performance, often indicating an issue with your database configuration. This error typically arises from server limitations or misconfigurations in MySQL settings.
In this article, we will guide you through the process of diagnosing and fixing this MySQL error.
These types of errors can appear in many cases and are usually related to the server configuration and its limits. Here are a few possible ways to fix them.
Optimize Database
The database can contain many entries that are no longer used. All actions are written to the database when you work on your website, updating pages, installing plugins, changing settings, etc.
Go to WordPress Dashboard → Plugins → Add New Plugin
Use the Search form and search for the WP-Optimize plugin
Install and activate the plugin
Go to WP-Optimize → Database and select all the available options
Click on the Run all selected optimizations button
Important Note: Before running any optimization process on your database, make sure you first take a full backup of your website.
Increase MySQL Limits
Use the hosting cPanel phpMyAdmin app or install and activate the WP phpMyAdmin plugin
Go to the SQL tab and run the following command to see what limits are set:
SHOW VARIABLES LIKE 'max_allowed_packet'
Use this command to increase the max_allowed_packet:
SET GLOBAL max_allowed_packet=524288000;
An example can be seen in the GIF below:
Notes:
If you are unfamiliar with phpMyAdmin or with how it works, it's better to avoid applying any modifications yourself. Instead, you can ask your hosting provider to increase these limits for you.
If you are looking for web hosting services, we recommend Divi Hosting, which is optimized and configured specifically for the Divi theme and comes with Divi preinstalled.