Planet MySQL HA Blog

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

A reponsible role for AI in Open Source projects?

| Percona
AI-driven pressure on open source maintainers, reviewers and, even, contributors, has been very much in the news lately. Nobody needs another set of edited highlights on the theme from me. For a Postgres-specific view, and insight on how low quality AI outputs affect contributors, Tomas Vondra published a great post on his blog recently, which referenced an interesting talk by Robert Haas at PGConf.dev in Montreal last year. I won’t rehash the content here, they’re both quite quick reads and well worth the time.

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More than Flushing (also Caching) for innodb_flush_method, and Missing Release Candidate

| J-F Gagné's MySQL Blog
Something changed in MySQL 8.4 related to caching, and it is easy to miss, so it deserves a post.  And a subject adjacent to this is the missing Release Candidate for MySQL 8.4 LTS, with my hope that the next LTS will have a Release Candidate, so I also cover this topic below. (if you are not interested in Caching and Flushing, you can jump directly to the section about Release Candidate)

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Meet Percona at KubeCon + CloudNativeCon Europe 2026

| Percona
The Percona team is heading to KubeCon + CloudNativeCon Europe in Amsterdam, and we’d love to meet you in person!

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PostgreSQL coffee break: version upgrade related reindexing - reasons

| Percona
During FOSDEM I had a chance to join a presentation by Alexander Sosna of GitLab on the backup procedure he has followed with his team to decrease the downtime during major upgrades. I highly recommend the talk, definitely worth watching!

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MySQL + Neo4j for AI Workloads: Why Relational Databases Still Matter

| Another MySQL DBA

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MySQL 8.0 JSON Functions: Practical Examples and Indexing

| Another MySQL DBA

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PostgreSQL minor release postponed in Q1’ 2026

| Percona
In case you are awaiting the February PostgreSQL Community minor update released on plan on February 12 we want to make sure that our users and customers are up to date and aware of what to expect.

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MySQL Belgian Days and FOSDEM 2026: My Impressions

| TusaCentral - MySQL Blogs

First of all, I want to say a huge thank you to Frederic Descamps and the entire team who worked on the MySQL Belgian Days. I was thrilled to see the high number of presentations and the excellent quality across the board. We had two rooms packed with attendees, and the event was simply great. It was also incredibly productive to finally reconnect with so many people in the community face-to-face.

Presentation-wise, I was really impressed by Vitor Oliveira (Huawei) and his talk, "Beyond Linear Read-Ahead: Logical Prefetching using Primary and Secondary Indexes in InnoDB…

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MySQL Belgian Days and FOSDEM 2026: My Impressions

| TusaCentral - MySQL Blogs

First of all, I want to say a huge thank you to Frederic Descamps and the entire team who worked on the MySQL Belgian Days. I was thrilled to see the high number of presentations and the excellent quality across the board. We had two rooms packed with attendees, and the event was simply great. It was also incredibly productive to finally reconnect with so many people in the community face-to-face.

Presentation-wise, I was really impressed by Vitor Oliveira (Huawei) and his talk, "Beyond Linear Read-Ahead: Logical Prefetching using Primary and Secondary Indexes in InnoDB…

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New Era of MySQL Community Engagement

| The Oracle MySQL Blog
As we mark the milestone of MySQL’s 30-year anniversary, the celebrations around the globe have been a testament to the widespread impact and popularity of the Dolphin. This week’s annual preFOSDEM MySQL Belgian Days in Brussels are not only an opportunity to celebrate, but also a chance for Oracle to share some key updates on […]

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