Planet MySQL HA Blog

In Part 1 of this series, we discussed what active-active databases are and identified some “good” reasons for considering them, primarily centered around extreme high availability and critical write availability during regional outages. Now, let’s turn our attention to the less compelling justifications and the substantial challenges that come with implementing such a setup.

What are “bad” reasons? 1. Scaling write throughput

Trying to scale your write capacity by deploying active-active across regions may sound like a clean horizontal solution, but it is rarely that simple…

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We're now expanding OCI Database Management capabilities with a new set of enhanced monitoring features - designed to reduce operational burden on DBAs and developers, strengthen observability, and support high availability across modern MySQL deployments.

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HeatWave MySQL Database Audit brings powerful enterprise-grade auditing capabilities to the cloud, allowing organizations to monitor and track database activity for security, compliance, and performance optimization. With features like customizable filters, real-time monitoring, minimal overhead, and seamless integration with MySQL tools, it enables administrators to log critical operations, detect threats, and maintain detailed records for regulatory requirements. The audit system is easy to set up, supports granular activity tracking, and provides actionable insights directly through the…

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Reflecting on 30 Years of MySQL and Looking Ahead This year marks an incredible milestone as MySQL celebrates 30 years of powering applications worldwide! Whether you’re a long-time fan or just starting your journey, you’re invited to join the MySQL Global Forum a virtual event bringing together MySQL leaders, experts, and community members from around the globe.

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In the previous post, we explored how the MySQL Shell extension for Visual Studio Code brings database development directly into your editor. In this follow-up, we'll walk through how to connect to a HeatWave MySQL database which is hosted in the cloud on Oracle Cloud Infrastructure (OCI) and how to browse schemas and run queries, all without leaving VS Code. Here is an architecture diagram that gives an idea of how VS Code connects to the HeatWave MySQL DB system.

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Fintech (financial technology) companies continue to disrupt the financial services industry. The technology they rely on is paramount; it often determines their ability to deliver an innovative solution exhibiting the performance, scalability, security, reliability, and cost-efficiency that will sway customers. Let’s consider in this blog why 3 fintech startups migrated to HeatWave MySQL, and the results they achieved.

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Modern development demands tools that minimize context switching and improve efficiency. The MySQL Shell extension for Visual Studio Code makes that possible by bringing powerful database interaction directly into the developer's workspace. With seamless support for connecting, querying, and scripting in SQL, Javascript, and TypeScript - all inside the familiar VS Code environment - it helps developers stay focused and productive.

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At Percona, we operate on the premise that full transparency makes a product better. We strive to build the best open-source database products, but also to help you manage any issues that arise in any of the databases that we support. And, in true open-source form, report back on any issues or bugs you might encounter along the way.

We constantly update our bug reports and monitor other boards to ensure we have the latest information, but we wanted to make it a little easier for you to keep track of the most critical ones. This post is a central place to get…

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It's incredibly useful to know which tables in your MySQL databases are seeing active changes versus those tables that are more static. To do this, we need to examine DML (Data Manipulation Language) activity—specifically, updates, inserts, and deletes. MySQL offers various mechanisms to gather this information.

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