Planet MySQL HA Blog

We’re now ready to deploy PostgreSQL 17 using GitOps — with ArgoCD, GitHub, and the Percona Operator for PostgreSQL.

If you’re a DBA, developer, DevOps engineer, or engineering manager, this part focuses on GitOps in action: deploying and managing a real database cluster using declarative infrastructure.

In Part 1, we set up the Kubernetes environment and installed ArgoCD.
Now it’s time to define and launch the PostgreSQL cluster — fully versioned and synced through Git.

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Welcome to GitOps Journey — a hands-on guide to setting up infrastructure in Kubernetes using Git and automation.

GitOps has gained traction alongside Kubernetes, CI/CD, and declarative provisioning.
You’ve probably seen it mentioned in blog posts, tech talks, or conference slides — but what does it actually look like in practice?

We’ll start from scratch: prepare a cluster, deploy a PostgreSQL database, run a demo app, and set up observability — all managed via Git and GitHub using ArgoCD.

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When running MongoDB replica sets in containerized environments like Docker or Kubernetes, making nodes reachable from inside the cluster as well as from external clients can be a challenge. To solve this problem, this post is going to explain the horizons feature of Percona Server for MongoDB.

Let’s start by looking at what happens behind the scenes when you connect to a replicaset URI.

Node auto-discovery

After connecting with a replset URI, the driver discovers the list of actual members by running the db.hello() command:

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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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