Planet MySQL HA Blog

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Reflecting on my MySQL journey, I realize that a few foundational topics completely changed how I understand and use databases. These topics—primary and foreign keys, JOINs, and indexes—form the heart of the MySQL Basics series. Each one felt like a major breakthrough when I first learned it. Writing about them helped me rediscover that excitement […]

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Percona.Connect London 2025 brought the open-source database community together for a half-day of learning and collaboration. The event focused on providing practical, technical insights for DBAs, DevOps engineers, and developers. The main takeaway was clear: Stability, Openness, and Automation are essential for modern, large-scale data infrastructure.

Top Discussions & Key Takeaways 1. The Rise of Valkey: A Truly Open Caching Alternative

Martin Visser, Valkey Technical Lead, explained the changes to the Redis license, the community needs a trusted, open-…

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Executive Summary AI applications rely on vector embeddings to power search and recommendations, but these data-rich vectors introduce new security and privacy risks. This blog explains the main threats to AI embeddings, how attacks can occur, and proven strategies for protecting vector data with MySQL—covering secure storage, access controls, encryption, auditing, and compliance best practices. […]

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Since 2024, MySQL and ODBMs.org have embarked on a collaboration to produce insightful articles that cater to the needs of data professionals. This partnership has yielded an impressive portfolio of 15 published articles covering a diverse range of topics, marking a significant success in bridging knowledge between the MySQL Community and ODBMs.org. ODBMs.org has established […]

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We have two important announcements for the MySQL Galera Cluster community. First, we are excited to announce a new, seamless In-Place Migration path to MariaDB Galera Cluster. This migration process has been rigorously tested and confirmed to be straightforward and, in the vast majority of scenarios, achieves minimal operational interruption. Second, with this fully supported […]

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Back in October, before PGConf.EU, I explained the issues impacting the prolonged wait for TDE in PostgreSQL 18. Explanations were needed as users were buzzing with anticipation, and they deserved to understand what caused the delays and what the roadmap looked like. In that blog post I have shared that due to one of the features newly added in 18.0, the Asynchronous IO (AIO), we have decided to give ourselves time until 18.1 has been released to provide a build with TDE. We wanted to ensure best quality of the solution and that takes time.

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This is a MySQL Blog, why am I posting about Slack, Feed Readers, RSS and Atom ?  Because blog aggregators, which are usually consumed on their RSS or Atom interface via a Feed Reader, are an important knowledge sharing tool in the MySQL Community (and in other communities, see Valkey below).  I know some people are using Slack as their Feed Reader, and I recently realized Slack is

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When I first got into woodworking, my mentor shared a piece of advice that has stuck with me ever since: “Use the right tool for the job.” You wouldn’t reach for a belt sander to flatten a board when a planer can accomplish the task faster, cleaner, and with far better results.

The same principle applies in the world of database engineering. When working with MySQL or Percona Server, choosing the correct tool can be the difference between efficient diagnostics and unnecessary downtime.

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