Planet MySQL HA Blog
The Planet MySQL HA Blog aggregates content from sources that cover topics related to high availability (HA) for MySQL databases.
Upcoming MySQL Events and Webinars (Updated list for April–May 2026)
As an update to our recent blog post, “Where can you find MySQL next? (Updated events list for March–May 2026)” we’d like to share the latest confirmed MySQL events and webinars, including newly added ones plus refreshed details for sessions we already announced. Since plans and agendas evolve quickly, this post is intended to provide […]
MySQL Community Roadmap Update and Invitation: MySQL Contributor Summit
As part of our MySQL community engagement plan, which includes delivering new features into MySQL Community Edition, increasing collaboration and transparency, and expanding and growing the MySQL Ecosystem, we have created a new rhythm of public MySQL Community Discussions—starting with our first session on February 25 and continuing with our second session on March 23, […]
Introducing Dynamic Data Masking in MySQL: Protect Sensitive Data Without App Changes
Production data is invaluable for day-to-day operations—support, troubleshooting, analytics, and development. But when that data contains sensitive fields such as SSNs, emails, phone numbers, or other identifiers, broad read access can quickly become unnecessary exposure. Just as importantly, many organizations operate under regulatory and contractual requirements that expect strong controls around access to sensitive data—often including data masking as […]
Upgrade to OpenSSL 3.5
Overview Some MySQL distribution packages, such as the generic Linux build, bundle an OpenSSL dependency within the same .tar.gz archive. With the new MySQL 8.0.46, 8.4.9 and 9.7.0 releases, we are upgrading those bundled packages from using OpenSSL 3.0 to the new OpenSSL 3.5 LTS branch. Native OS packages, such as .rpm and .deb, continue […]
MySQL 9.7.0 LTS Is Now Available: Expanded Community Capabilities and Dynamic Data Masking for Enterprise
With MySQL 9.7.0 LTS, MySQL establishes its next long-term support release line, expands key capabilities in Community Edition, and introduces Dynamic Data Masking for Enterprise users. The April releases mark an important milestone for MySQL. With the GA of MySQL 9.7.0 LTS, MySQL moves from the 9.x innovation series to a new Long-Term Support release line. This begins […]
Incremental backups in Percona Kubernetes Operator for MySQL
Starting with version 1.1.0, the Percona Kubernetes Operator for MySQL now supports incremental backups. This feature lets you backup only the changed data since the last backup, instead of copying your entire dataset each time. The result is dramatically smaller backup sizes, faster backup windows, and lower cloud storage costs.
Symlinks are Unsafe since MySQL 8.0.39 (and maybe even before)
You read this right, symbolic links (symlinks) are unsafe in MySQL since at least 8.0.39. As always, it is a little more complicated than that, but if you are using symbolic links and in certain conditions, you risk a crash. I think it is important to raise awareness on this, hence this post.
My attention was brought to this via the now private Bug #120156: MySQL 8.0.39/8.0.42
Monitoring MySQL data locks, or the tip of the iceberg
Monitoring MySQL data locks, or the tip of the iceberg This story is about recent (*) performance improvements implemented in MySQL, related to monitoring of data locks. (*) Originally written in Feb 2025. Refresher What is a data lock? When a user session connects to the MySQL database, it executes SQL queries. The query runs; […]
Join the Public MySQL Community Discussion Webinar (Edition #3)
Following the strong participation in the first two editions of our Public MySQL Community Discussion webinar series, we’re excited to invite you to Edition #3. These sessions are part of our ongoing commitment to increase transparency, strengthen collaboration, and make it easier for the community to provide input that helps shape the evolution of MySQL’s. […]
Celebrating 30 Years of MySQL: Free Training & Certification Results
In 2025, MySQL celebrated its 30th anniversary—and to mark the milestone, Oracle University (together with the MySQL Community team) offered free MySQL training and free certification exams from April 20 through July 31, 2025. The goal was simple: make it easy for developers, DBAs, architects, and newcomers to build practical skills and validate them with […]