Oct
09
2025
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A Guide to Redis Performance Best Practices

Redis Performance Best PracticesGetting started with Redis? Read this first. Redis makes it very easy to get started, but if you want Redis to keep up when things get busy, there’s a bit more to take care of. Anyone can spin up a test server, but production workloads demand reliability and performance planning. That’s where the details matter. […]

Oct
01
2025
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The Redis License Has Changed: What You Need to Know

Redis has always been the go-to when you need fast, in-memory data storage. You’ll find it everywhere. Big ecommerce sites. Mobile apps. Maybe your own projects, too. But if you’re relying on Redis today, you’re facing a new reality: the licensing terms have changed, and that shift could affect the way you use Redis going […]

Sep
30
2025
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Tackling the Cache Invalidation and Cache Stampede Problem in Valkey with Debezium Platform

There are two hard problems in computer science: cache invalidation, naming things, and off-by-1 errors. This classic joke, often attributed to Phil Karlton, highlights a very real and persistent challenge for software developers. We’re constantly striving to build faster, more responsive systems, and caching is a fundamental strategy for achieving that. But while caching offers […]

Sep
26
2025
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MySQL 8.0 End of Life Support: What Are Your Options?

MySQL 8.0 End of Life SupportWe’ve mentioned this a few times here on the blog already, but in case you missed it, MySQL 8.0’s end-of-life date is April 2026. This probably sounds forever away, but it’s going to sneak up before you know it. Maybe you’ve been putting off thinking about it, or maybe you’re already weighing your options but […]

Sep
24
2025
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Choosing the Right Key-Value Store: Redis vs Valkey

key-value storeNot long ago, picking an in-memory key-value store was easy. Redis was the default. Fast, simple, everywhere. Then the rules changed. Redis moved to a much more restrictive license. Suddenly, many companies had to rethink their plans, especially if they cared about staying open source or needed flexibility for the cloud. That’s when Valkey arrived. […]

Sep
22
2025
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Keep PostgreSQL Secure with TDE and the Latest Updates

This fall feels like a good moment to stop and look at what’s changed in PostgreSQL security over the last months and also what you can use right now to make your PostgreSQL deployments safer. PostgreSQL Transparent Data Encryption (TDE) from Percona For many years, Transparent Data Encryption (TDE) was a missing piece for security […]

Sep
17
2025
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MySQL with Diagrams Part Three: The Life Story of the Writing Process

How MySQL writes workWhen you run a simple write, …it may look simple, but under the hood, MySQL’s InnoDB engine kicks off a pretty complex sequence to ensure your data stays safe, consistent, and crash-recoverable. In the top-left corner of the diagram, we see exactly where this begins — the moment the query is executed: [crayon-68cb7b0282a22221090106/] The log […]

Sep
15
2025
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Deploying Percona Operator for MongoDB Across GKE Clusters with MCS

Percona Operator for MongoDB Across GKE Clusters with MCSEver needed a robust, highly available MongoDB setup that spans multiple Kubernetes clusters on GCP? This step-by-step guide shows you how to deploy the Percona Operator for MongoDB in two GKE clusters, linking them using Multi-Cluster Services (MCS) for seamless cross-cluster discovery and connectivity. Step 1: Prepare your GKE clusters & enable MCS 1. Prepare […]

Sep
09
2025
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Beyond EOL: The Real Benefits of Upgrading to MySQL 8.4

upgrading to MySQL 8.4Right now, you’re probably hoping someone else will deal with this MySQL 8.0 end-of-life situation. Maybe your team can squeeze another few months out of it. Maybe Oracle will extend support. Maybe it won’t be as bad as everyone says. We get it.  You’ve got enough things going on without adding “major database upgrade” to […]

Sep
08
2025
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Swimming with Sharks: Analyzing Encrypted Database Traffic Using Wireshark

Percona has a great set of tools known as the Percona Toolkit, one of which is pt-upgrade. The idea behind this tool is to replay a captured sequence of queries that were executed on a different database server. This is very useful to validate if a new version of the database server works as expected […]

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