The Percona Database Performance Blog

Ensuring PostgreSQL Backup Continuity: A pgBackRest Update

pgBackRest is a foundational component of the PostgreSQL backup solutions supported by Percona, playing a critical role in ensuring reliable and resil...

Achieving High Availability with Valkey Sentinel

In the previous guide, a robust Primary-Replica topology for Valkey was established. Read scaling is now active, and a hot copy of the data is securel...

Innovation From Every Corner: Inside Percona’s Build with AI Competition

At Percona, we’re passionate about open source database software, helping organizations of all sizes run, manage, and optimize their databases w...

Scaling Your Cache: A Step-by-Step Guide to Setting Up Valkey Replication

In the recent open-source data landscape, Valkey has emerged as a prominent player. Born as a Linux Foundation-backed, fully open-source fork of Redis...

Percona Live 2026 is Back in the Bay Area — Here’s Why You Don’t Want to Miss It

We’re thrilled to welcome the open source database community back in person for Percona Live 2026, taking place May 27–29 in the Bay Area. After the e...

Impacts of updates in open-source databases

We recently looked at how various open-source database engines maintain their secondary indexes (in a previous analysis) and found significant differe...

Percona Operator for MySQL 1.1.0: PITR, Incremental Backups, and Compression

The latest release of the Percona Operator for MySQL, 1.1.0, is here. It brings point-in-time recovery, incremental backups, zstd backup compression, ...

PostgreSQL Performance: Is Your Query Slow or Just Long-Running?

Introduction: Recently I was having a conversation with a DB Enthusiast, and he mentioned that when he was a fresher, he tuned an ETL/reporting query ...

Deploying Cross-Site Replication in Percona Operator for MySQL (PXC)

Having a separate DR cluster for production databases is a modern day requirement or necessity for tech and other related businesses that rely heavily...

MariaDB’s Snapshot Isolation: A Fix That Breaks More Than It Fixes

Jepsen’s analysis of MySQL 8.0.34 walked through a set of concurrency and isolation anomalies in InnoDB. MariaDB, which inherits the same codeba...