Planet MySQL HA Blog

The Planet MySQL HA Blog aggregates content from sources that cover topics related to high availability (HA) for MySQL databases.

MySQL & MySQL HeatWave Report – June 2026

| MySQL expert Diary

Keeping up with the MySQL ecosystem is becoming increasingly challenging. Every release introduces new features, performance improvements, security enhancements, and cloud capabilities. While the official documentation is comprehensive, it is not always easy to quickly identify what really matters.

To help with that, I've published a new edition of my MySQL & MySQL HeatWave Report, covering the most important announcements around MySQL 9.7 LTS and MySQL HeatWave 9.7.
Slides: https://speakerdeck.com/freshdaz/mysql-and-mysql-heatwave-report-june-2026

The post MySQL…

Learn More »

PostgreSQL Autovacuum Internals and Benchmark

| Percona
Vacuum, or more precisely autovacuum, is the most important automatic maintenance task in PostgreSQL. It is key for performance, but also for long-term database survival. If it runs too often, it can damage performance. If it does not run often enough, performance can suffer. With too few workers, it takes too long. With too many, it consumes resources. If the maintenance work memory is not enough, the load can multiply due to multiple index scans. If you disable it completely, it will rise from the dead and run without limits.

Learn More »

The Galera Crossroads: Why PXC is the Lifeline for MariaDB Community Users

| TusaCentral - MySQL Blogs
Or: Surviving the Codership Acquisition Without Losing Your Cluster Why this long post?

Recently, the database landscape shifted significantly when MariaDB plc absorbed Codership. If you aren't familiar, Codership is the company that introduced the Galera library and the WSREP API to MySQL, creating the first virtually synchronous replication solution for the MySQL ecosystem. For years, they produced their own highly stable, patched version of MySQL + Galera, which was widely adopted alongside solutions like Percona XtraDB Cluster (PXC).

The Post-Acquisition…

Learn More »

Building Smart Semantic Search using PostgreSQL and pgvector. Part 3 - Hybrid Search, Percona Blog, and Widget Improvements

| Percona
Here I write about what I changed after the first launch: hybrid search, filters and counts on the search page, the widget layout, indexer hardening, and the Percona Blog in the index. People often type short words or names, and pure vector search is weak at that. When I turned search on about a month ago I asked for feedback in Part 1, and most of what follows came from that.

Learn More »

Continuing the Conversation: MySQL Community Engagement Across JAPAC 

| The Oracle MySQL Blog
One of the key themes of the MySQL Community over the past year has been increasing transparency, participation, and collaboration.  Through Public Discussions, Design Proposals, the MySQL Developer Guide, GitHub collaboration, and the MySQL Contributor Summit, we have been working to create more opportunities for the community to engage with the future direction of MySQL.  […]

Learn More »

Join MySQL Public Discussion #5: Community Participation, Governance, and Next Steps

| The Oracle MySQL Blog
As part of our ongoing MySQL Community engagement series, we are pleased to invite you to Public Discussion #5, taking place on July 15, 2026, at 7:00 AM PT. Over the past several months, these public discussions have helped us continue the conversation around MySQL Community Edition, roadmap transparency, contribution paths, GitHub collaboration, and ways […]

Learn More »

Why PostgreSQL needs an AI usage policy

| Percona
We often hear that open source is about people.

Learn More »

From JSON by Hand to a Guided MySQL Enterprise Edition Audit Filter Wizard

| The Oracle MySQL Blog
MySQL Enterprise Edition includes powerful audit filtering capabilities, but writing audit filter JSON by hand can be tedious and error-prone. The JSON model is flexible, which is exactly what makes it useful, but it also means that a small typo, a missing event class, or an incorrectly assigned user can change what does or does […]

Learn More »

The Next Phase of MySQL Community Engagement: Accelerating Participation and Collaboration 

| The Oracle MySQL Blog
For over 30 years, MySQL has grown through the contributions, feedback, and collaboration of a global community of developers, database administrators, customers, partners, educators, and open source advocates. That community has helped make MySQL one of the world’s most widely used open source databases. As the ecosystem continues to grow and evolve, so do the opportunities for collaboration.  Over the past year, we have […]

Learn More »

Create Replica DB system Made Easy for MySQL HeatWave Service on OCI

| The Oracle MySQL Blog
MySQL HeatWave Service (MHS) on Oracle Cloud Infrastructure (OCI) already provides multiple ways to create a new DB system, such as restoring from a backup, using Point-in-Time Recovery (PITR), or importing data from Object Storage. However, when creating a new DB system from an existing DB system, especially in another region, the process required several sequential […]

Learn More »