Personal blog of Yzmir Ramirez

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; staying on end-of-life software means you’re taking on all the responsibility […]

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!“. But once that date hits, every day you keep running MySQL 8.0 makes […]

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!“. But once that date hits, every day you keep running MySQL 8.0 makes […]

Index maintenance can be a real challenge for anyone managing databases, and what makes it even trickier is that open source databases each handle it differently. In this post, we’ll take a closer look at how those differences show up in practice, and what they mean for you. When rows are added, updated, or deleted […]

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, comes in. GDB lets us inspect a core dump […]

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 HTTPS over a public URL. While researching how to make this work (which […]

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 database by skipping to check if we are going to backup any non-transactional tables. Now, […]

Welcome to this first installment of the blog series, which explores how PostgreSQL and MySQL deal with different aspects of relational databases. As a long-time open source database administrator, I have always been fascinated by the differences in how these two databases handle various challenges and how DBAs who know one of these technologies often […]

At Percona, we’ve always been dedicated to providing robust, open source 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 your MySQL and Percona Server for MySQL deployments. We understand that database high availability is critical for your […]

At Percona, we’ve always been dedicated to providing robust, open source 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 your MySQL and Percona Server for MySQL deployments. We understand that database high availability is critical for your […]