Planet MySQL HA 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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This is a recap of Percona at preFosdem and Fosdem!

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MySQL 8.0 is scheduled for End of Life (EOL) in April 2026. In line with this milestone, we previously announced in this Oracle blog post that all existing MySQL HeatWave instances running version 8.0 would be automatically upgraded to the latest supported 8.4 release after April 2026. However, understanding the operational realities and planning cycles […]

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The following thoughts and comments are completely my personal opinion and do not reflect my employers thoughts or beliefs. If you don’t like anything in this post, reach out to me directly, so I can ignore it ;-).

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Last year at pgconf.dev, there was a discussion about improving the user interface for the PostgreSQL hackers mailing list, which is the main communication channel for PostgreSQL core development. Based on that discussion, I want to share a small project we have been working on:

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There is a special kind of boredom that only database people know. The kind where you stare at a server humming along and think, surely there is something here I can tune. Good news: there is.

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MySQL is taking a significant step forward by rethinking how foreign key constraints and cascades are managed. Starting with MySQL 9.6, foreign key checks and cascade operations will be handled directly by the SQL engine rather than the InnoDB storage engine. This improvement addresses long-standing challenges with change tracking, binary log replication, and data consistency, making […]

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I have a curse. My curse is curiosity. 

Here in Percona I found one person that is very “dangerous” for me, and he and I also share the same first name, well almost, Marcos Albe. 

Marcos is a smart guy with a lot of ideas, and he is not shy to share them. One day we were talking about sysbench, and he mentioned to me: you know it would be nice to have a test for joins in sysbench. I wonder why we don’t have it; it will be so useful to identify regressions in that area.
You see where this is going right? He put…

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I have a curse. My curse is curiosity. 

Here in Percona I found one person that is very “dangerous” for me, and he and I also share the same first name, well almost, Marcos Albe. 

Marcos is a smart guy with a lot of ideas, and he is not shy to share them. One day we were talking about sysbench, and he mentioned to me: you know it would be nice to have a test for joins in sysbench. I wonder why we don’t have it; it will be so useful to identify regressions in that area.
You see where this is going right? He put…

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"What happens when you run a 10 TB MySQL database on Kubernetes?" 

That's the question many of our customers and users asked and honestly, we were extremely curious ourselves.

So, we ditched the weekend plans, rolled up our sleeves, and jumped down the rabbit hole. What we found was far more challenging (and perhaps a bit more "psychedelic") than expected. We spent days rigorously testing the Percona Operator for PXC at massive scale. 

This blog post distills all our findings into the most critical,…

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