With the 9.2.0 Innovation Release of MySQL Shell and MySQL Router, we are introducing Routing Guidelines – a new feature that makes query routing in MySQL database architectures more dynamic, flexible, and declarative.  Available in the MySQL Community and Enterprise Editions, this feature enables tailored query routing for specific application needs and ensures seamless query distribution across MySQL InnoDB Cluster, ClusterSet, and ReplicaSet […]

At the beginning of the year, we released MySQL 9.2, the latest Innovation Release. Sorry for the delay, but I was busy with the preFOSDEM MySQL Belgian Days and FOSDEM MySQL Belgium Days. Of course, we released bug fixes for 8.0 and 8.4 LTS, but in this post, I focus on the newest release. Within […]

Thank you to all contributors that have their patches added to MySQL 9.2

At the beginning of the year, we released MySQL 9.2, the latest Innovation Release. Sorry for the delay, but I was busy with the preFOSDEM MySQL Belgian Days and FOSDEM MySQL Belgium Days. Of course, we released bug fixes for 8.0 and 8.4 LTS, but in this post, I focus on the newest release. Within […]

  Deploying MySQL InnoDB ClusterSet across multiple Kubernetes clusters is a complex challenge. While the MySQL Operator for Kubernetes can manage a MySQL InnoDB Cluster within a single Kubernetes cluster, deploying an InnoDB ClusterSet across multiple clusters requires cross-cluster communication, which is not yet supported by the current MySQL Operator release. This is where Cilium […]

As usual and as a follow up to the previous blog post, let us inform you about upcoming events and conferences where you can find MySQL Community team or MySQL representatives at. Please check the list below. March 2025: April 2025: May 2025: More events will come up later. For more information and further updates […]

This blog was originally published in June 2020 and was updated in March 2025. One of the most common support tickets we get at Percona is the infamous “database is running slower” ticket.  While this can be caused by a multitude of factors, it is more often than not caused by a bad or slow […]

HeatWave MySQL Cluster HeatWave is a massively parallel, high performance, in-memory query accelerator that accelerates MySQL performance by orders of magnitude for analytics workloads, mixed workloads, and machine learning. HeatWave can be accessed through Oracle Cloud Infrastructure (OCI), Amazon Web Services (AWS), and Oracle Database Service for Azure (ODSA). HeatWave consists of a MySQL DB […]

This blog post gives you a quick and easy SQL statement to check the available memory in your HeatWave MySQL cluster.

As promised, my slides from FOSDEM25 and Pre-FOSDEM MySQL Belgian Days :

• MySQL Scalability & Systems Evaluation Overview 2025 [PDF]
• Profiling MySQL Memory & CPU Usage Directly From MySQL [PDF}

And since I was asked several times about MySQL test case demonstrating glibc-malloc memory fragmentation / leaks -- here are all the details :

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