"What happens when you run a 10 TB MySQL database on Kubernetes?" 

That's the question many of our customers and users asked and honestly, we were extremely curious ourselves.

So, we ditched the weekend plans, rolled up our sleeves, and jumped down the rabbit hole. What we found was far more challenging (and perhaps a bit more "psychedelic") than expected. We spent days rigorously testing the Percona Operator for PXC at massive scale. 

This blog post distills all our findings into the most critical, actionable advice you need to ensure your high-scale environment not only survives but operates reliably.

If you are lazy and prefer to watch a video, here is the presentation I did at the MySQL Belgian days in January 2026.

First of …

Remember when Percona significantly improved query processing time by fixing the optimizer bug? I have described all the details in More Performant Query Processing in Percona Server for MySQL blog post. This time, we dug deeper into all the ideas from Enhanced for MySQL and based on our analysis, we proposed several new improvements. All the changes are available in Percona Server 8.0.43 and 8.4.6, and newer versions

Before discussing specific improvements, let me describe how we measured the kind of performance gain we achieved. The top-level approach is common for benchmarks: you need a baseline version and then compare your modified version to that baseline. At Percona, we have a dedicated environment for performance testing. …

In this guide, we explain 150+ SQL commands in simple words, covering everything from basic queries to advanced functions for 2026. We cover almost every SQL command that exists in one single place, so you never have to go search for anything anywhere else. If you master these 150 commands, you will become an SQL […]

MySQL Studio in Oracle Cloud Infrastructure MySQL Studio in Oracle Cloud Infrastructure (OCI) is a unified environment for working with MySQL and HeatWave features through a single, streamlined interface. It brings SQL authoring, AI-assisted chat, and Jupyter-compatible notebooks together with project-based organization to help teams get from database setup to productive analytics faster. The same […]

Deploying databases on Kubernetes is getting easier every year. The part that still hurts is making deployments repeatable and predictable across clusters and environments, especially from Continuous Integration(CI) perspective. This is where PR-based automation helps; you can review a plan, validate changes, and only apply after approval, before anything touches your cluster.  If you’ve ever […]

Who has never encountered a customer who, for all sorts of reasons (valid or not), was unable to update an application and therefore could no longer connect to the latest versions of MySQL? Or worse still, data that is shared between two applications, one of which absolutely must use the latest version of MySQL and […]

I was able to get the MySQL MCP Server up and running and it was time to try it first time against a sample data set outside of its test suite.

Let’s start with Stack Overflow and the value of its data for modern LLMs and AI systems. As most of you already know, the questions in forums has significantly dropped since the launch of OpenAI, aka ChatGPT

Source : https://x.com/alojoh/status/2009366134513127462

This is probably true for traditional search engines like Google, although they’re already adopting built-in AI solutions. Other sources, such as Reddit, also provided valuable, quick, and easy information to the masses.

I wanted to spin a subset of StackExchange questions. These are loaded into a local MySQL server. I intended to put the MCP server to a …

I am pleased to unveil the agenda for our two days dedicated to MySQL and its community just before FOSDEM.

The preFOSDEM MySQL Belgian Days will take place on January 29 and 30th in Brussels.

We received many excellent proposals from a wonderful panel of experienced, well-known speakers.

We decided to provide as much content as possible, and therefore, two tracks will run in parallel in two different rooms.

We tried to cover many topics, and, of course, our new projects, such as the Migration Assistant and the REST Service, will be present. We will have several dedicated sessions on AI and on running MySQL on K8s.

The conference will end with the traditional MySQL Rockstar Ceremony.

We really think most of you will …

We’re excited to present a recap of the MySQL Community 2025 Advent Calendar posts. Once again, we thoroughly enjoyed preparing and sharing our insights on a diverse range of topics related to MySQL. Continuing the tradition from previous years, the MySQL Community Team contributed a series of daily blog posts throughout December, leading up to […]

Decrypting SSL/TLS Traffic with Wireshark and ProxySQL

In this guide, we will walk you through the process of decrypting SSL/TLS traffic to and from ProxySQL using Wireshark. By enabling the SSLKEYLOG feature in ProxySQL and configuring Wireshark to use the SSL key log file, you will be able to view the decrypted traffic for debugging and analysis purposes.

Prerequisites

Before we begin, make sure you have the following:

• ProxySQL installed and running.
• Wireshark installed on your machine.

Enabling SSLKEYLOG in ProxySQL

You can enable the SSLKEYLOG feature in ProxySQL either by modifying the configuration file or via runtime queries.

Enabling SSLKEYLOG via Configuration File

1. Open the ProxySQL configuration file (typically proxysql.cnf) in a text editor.

2. Add or modify the …