Testing ReadySet as a Query Cacher for PostgreSQL (Plus ProxySQL and HAproxy) Part 1: How-To
A couple of weeks ago, I attended a PGDay event in Blumenau, a city not far away from where I live in Brazil. Opening the day were former Percona colleagues Marcelo Altmann and Wagner Bianchi, showcasing ReadySet’s support for PostgreSQL. Readyset is a source-available database cache service that differs from other solutions by not relying […]

(Comment on this)

The PG_TDE Extension Is Now Ready for Production
Lately, it feels like every time I go to a technical conference, someone is talking about how great PostgreSQL is. I’d think it’s just me noticing, but the rankings and surveys say otherwise. PostgreSQL is simply very popular. From old-school bare metal setups to VMs, containers, and fully managed cloud databases, PostgreSQL keeps gaining ground. And […]

(Comment on this)

Managing PostgreSQL on Kubernetes with Percona Everest’s REST API
I’ve been working with Kubernetes and databases for the past few months, and I’m enjoying learning and exploring more about Percona Everest’s features. Percona Everest is a free, open source tool that makes it easier for teams to manage databases in the cloud. In a Cloud Native world, everything is programmable, including databases. Percona Everest […]

(Comment on this)

Percona XtraDB Cluster: Our Commitment to Open Source High Availability
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 […]

(Comment on this)

Scaling Smarter: What You Have Missed in MongoDB 8.0
MongoDB has always made it relatively easy to scale horizontally, but with version 8.0, the database takes a significant step forward. If you’re working with large datasets or high-throughput applications, some of the changes in this release will make your life a lot easier — and your architecture cleaner. Let’s take a look at some […]

(Comment on this)

Using Percona Everest Operator CRDs to Manage Databases in Kubernetes
Percona Everest is a free and open source tool for running and managing databases like PostgreSQL, MySQL, and MongoDB inside Kubernetes. It simplifies things by providing three ways to work with your databases: a web interface (UI), a set of commands (API), and direct access through Kubernetes itself using built-in tools like kubectl. Note: Before […]

(Comment on this)

Open Wins Again II: From Fork to Force
Forks aren’t just a technical event. We can look at them as philosophical ruptures, and the open source world isn’t the first to face this. Crypto communities have lived and breathed this reality for over a decade, often in the most chaotic, transparent, and high-stakes ways possible. Now, as Valkey rises to become the de […]

(Comment on this)

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 configuration parameters play a crucial role in controlling and influencing failover behavior. In this […]

(Comment on this)

Looking Ahead: A Confident New Chapter for Percona
Percona has always been more than just a company—it’s a mission-driven community built on a strong foundation of innovation, resilience, and open source excellence. For nearly two decades, Percona has been a trusted partner to organizations around the world, remaining steadfast in our mission while continuing to grow, improve, and evolve. Today, we mark the […]

(Comment on this)

Percona Software for MongoDB Release Plan Updates
Percona commits to delivering robust, enterprise-grade, and community-driven software for MongoDB. We build our databases and tools to meet evolving data needs. As MongoDB continues to evolve, we’ve updated and clarified our release strategy for the Percona Software for MongoDB suite. This suite includes: Percona Server for MongoDB (PSMDB) Percona Backup for MongoDB (PBM) Percona […]

(Comment on this)

Integrating Repmgr with Barman: Managing Backups During Switchovers
Repmgr is an open source tool suite for managing replication and failover in a cluster of PostgreSQL servers. It enhances PostgreSQL’s built-in hot-standby capabilities with tools to set up standby servers, monitor replication, and perform administrative tasks such as failover or manual switchover operations. If you’re already familiar with Patroni, think of repmgr as a […]

(Comment on this)

Percona Earns Kubernetes Certified Services Provider Status for All Three Major Open Source Databases
As a member of the Kubernetes Certified Services Provider program, Percona is now part of a select, “pre-qualified tier of vetted service providers who have deep experience helping enterprises successfully adopt Kubernetes…” Kubernetes (frequently abbreviated as K8s) has come a long way over the past decade. From being used almost exclusively for orchestrating stateless container […]

(Comment on this)

Percona Named to DBTA’s 2025 List of 100 Companies That Matter Most in Data
We’re proud to share that Percona has been named to the 2025 DBTA 100—Database Trends and Applications’ annual list of “The Companies That Matter Most in Data.” This recognition highlights our success in empowering organizations to build, scale, and optimize open source database environments for today’s most demanding applications. At Percona, we believe open source […]

(Comment on this)

How to Perform a Disaster Recovery Switchover with Patroni for PostgreSQL
Patroni is a Python-based template for managing high availability PostgreSQL clusters. Originally a fork of the Governor project by Compose, Patroni has evolved significantly with many new features and active community development. It supports integration with various Distributed Configuration Stores (DCS) like etcd, Consul, and ZooKeeper, and provides simple setup and robust failover management. This blog […]

(Comment on this)

PgBouncer for PostgreSQL: How Connection Pooling Solves Enterprise Slowdowns
If your database is getting slower, your users don’t care why. They just want it to work. Meanwhile, you’re stuck dealing with the symptoms: sluggish apps, spiking resource usage, and support tickets piling up faster than your monitoring alerts can handle. Why PostgreSQL struggles under load Often, the problem isn’t with your queries or hardware; […]

(Comment on this)

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 more familiar language. It is still in active development, and we would very much like your […]

(Comment on this)

Understanding the Client-Output Buffer Limit for Replicas in Valkey
Valkey (a community-driven fork of Redis) uses a high-performance replication model to synchronize data between a primary node and its replicas. One critical component of this system is the client-output buffer, especially the configuration of its limits for replicas. This blog explores the client-output buffer, how its limits work in the context of replicas, and […]

(Comment on this)

How to Safely Upgrade InnoDB Cluster From MySQL 8.0 to 8.4
In this blog, we continue from where we left off in the previous post, InnoDB Cluster Setup: Building a 3-Node High Availability Architecture, where we demonstrated how to set up a MySQL InnoDB Cluster with three nodes to achieve high availability. Here, we walk through the step-by-step process of performing a rolling upgrade of that […]

(Comment on this)

The Open Source Ripple Effect: How Valkey Is Redefining the Future of Caching, and Why It Matters
Open wins again: What Valkey’s meteoric rise tells us about the future A product manager’s perspective on navigating an ecosystem in flux. When Redis Inc. changed its core product license, few anticipated how fast the aftershocks would reshape the caching world. But the emergence of Valkey – a Linux Foundation–governed fork – has sparked one […]

(Comment on this)

Beyond Guesswork: Enterprise-Grade PostgreSQL Tuning with pg_stat_statements
Something’s slowing your database down, and everyone feels it. Dashboards drag. Reports run late. Engineers start rebooting services just to buy time. Nobody’s saying “the database is broken,” but something isn’t right. You know there’s a problem. What you don’t have is visibility. PostgreSQL isn’t going to raise its hand and tell you which queries […]

(Comment on this)