MySQL 8.0 End of Life Support: What Are Your Options?
We’ve mentioned this a few times here on the blog already, but in case you missed it, MySQL 8.0’s end-of-life date is April 2026. This probably sounds forever away, but it’s going to sneak up before you know it. Maybe you’ve been putting off thinking about...
Help Shape the Future of Vector Search in MySQL
AI and machine learning are seemingly everywhere, and that’s forcing every database company to think about vector search. Companies want to build things like smart search that actually understands what you mean, recommendation systems that know what you’ll...
MySQL with Diagrams Part Three: The Life Story of the Writing Process
When you run a simple write, …it may look simple, but under the hood, MySQL’s InnoDB engine kicks off a pretty complex sequence to ensure your data stays safe, consistent, and crash-recoverable. In the top-left corner of the diagram, we see exactly where this begins —...
Beyond EOL: The Real Benefits of Upgrading to MySQL 8.4
Right now, you’re probably hoping someone else will deal with this MySQL 8.0 end-of-life situation. Maybe your team can squeeze another few months out of it. Maybe Oracle will extend support. Maybe it won’t be as bad as everyone says. We get it. ...
Swimming with Sharks: Analyzing Encrypted Database Traffic Using Wireshark
Percona has a great set of tools known as the Percona Toolkit, one of which is pt-upgrade. The idea behind this tool is to replay a captured sequence of queries that were executed on a different database server. This is very useful to validate if a new version of the...
Don’t Trust, Verify: How MyDumper’s Checksums Validates Data Consistency
How do you know if your backup is truly reliable? The last thing you want is to discover your data is corrupted during a critical restore or during a migration. While MyDumper is a powerful tool for logical backups, its -M option takes backup integrity to the next...
MySQL 8.0 Deprecated Features: What You Need to Know
If you manage a MySQL database, you’ve probably heard the news: MySQL 8.0 is heading for its End of Life (EOL), and taking center stage is MySQL 8.4, the first-ever Long-Term Support (LTS) release. This is great news for all of us who value stability, as it means a...
Top 5 Security Risks of Running MySQL 8.0 After Its EOL
Your MySQL database has been running smoothly for years. Your team knows it inside and out. Everything just… works. Why rock the boat with an upgrade? Here’s why: MySQL 8.0 reaches its end-of-life date in April 2026. After this date, there’s no safety net;...
MySQL 8.0 End of Life Date: What Happens Next?
If you’re running MySQL 8.0 databases, you need to know this: Oracle will stop supporting them in April 2026. That means no more security patches, bug fixes, or help when things go wrong. Maybe you’re thinking, “But April 2026 feels far away!”....
Diagnosing MySQL Crashes on RHEL with GDB: How to Identify the Database, Table, and Query Involved
When troubleshooting a MySQL crash, having only the error log is rarely enough to pinpoint the exact root cause. To truly understand what happened, we need to go deeper—into the memory state of the process at the moment it crashed. That’s where GDB, the GNU Debugger,...
How Can AI Talk to My Database Part Two: MySQL and Gemini
My first experiments creating an MCP Server to provide AI access to a PostgreSQL database using the FastMCP Python framework and Anthropic’s and OpenAI’s APIs highlighted an important requirement: for now, these two APIs can only communicate with an MCP server through...
MyDumper Refactors Locking Mechanisms
In my previous blog post, Understanding trx-consistency-only on MyDumper Before Removal, I talked about –trx-consistency-only removal, in which I explained that it acts like a shortcut, reducing the amount of time we have to block the write traffic to the...
A Tale of Two Databases: How PostgreSQL and MySQL Handle Torn Pages
Welcome to this first installment of the blog series, which explores how PostgreSQL and MySQL deal with different aspects of relational databases. This post is about how to handle torn pages. As a long-time open source database administrator, I have always been...
Percona XtraDB Cluster: Our Commitment to Open Source High Availability
At Percona, we’ve always been dedicated to providing robust, open source high availability solutions that meet our users’ evolving needs. Percona XtraDB Cluster (PXC) stands as a testament to this commitment, offering a highly available and scalable solution for...
MySQL Orchestrator Failover Behavior During Replication Lag
Managing farms of MySQL servers under a replication environment is very efficient with the help of a MySQL orchestrator tool. This ensures a smooth transition happens when there is any ad hoc failover or a planned/graceful switchover comes into action. Several...
Introducing Experimental Support for Stored Programs in JS in Percona Server for MySQL
TL;DR Percona Server for MySQL now offers experimental support for stored programs in the JS language. This free and open source alternative to Oracle’s Enterprise/Cloud-only feature enables users to write stored programs in a more modern, convenient, and often...
How to Safely Upgrade InnoDB Cluster From MySQL 8.0 to 8.4
InnoDB Cluster: Set Up Router and Validate Failover
