The latest from the MySQL community

When I’m working with MySQL, I care not just about whether a single query is slow, but how much total load the server can handle before performance starts to drop.

Tools like mysqlslap help by generating synthetic workloads to simulate multiple clients and measure the server’s Queries Per Second (QPS).

In this post, I’ll walk through a script I used to benchmark MySQL server performance with mysqlslap, and discuss when it makes sense to use it over more advanced tools like sysbench. I originally used this script in a blog post published at ReadySet: Vertical Scaling of MySQL vs. Horizontal Scaling with ReadySet.

Why Benchmark a MySQL Server?

Benchmarking gives a rough idea of how a MySQL server performs under …

Recently, a friend reached out to me for help after encountering an error while restoring a MySQL dump during an upgrade from MySQL 8.0 to 8.4. The error read: At…

The post A Unique Foreign Key issue in MySQL 8.4 first appeared on Change Is Inevitable.

Recently, I encountered a Percona Monitoring and Management (PMM) server that was rapidly approaching complete disk exhaustion. This post outlines the steps taken to identify the issue and reclaim disk…

The post How to Resolve Disk Space Issues in PMM: Case Study first appeared on Change Is Inevitable.

When using the Percona Operator for MySQL based on Percona XtraDB Cluster (PXC), it’s common to encounter scenarios where cluster nodes request a full State Snapshot Transfer (SST) when rejoining the cluster. One typical scenario where a State Snapshot Transfer (SST) is required is when a node has been offline long enough that the GCache […]

This post is the second in a series about Routing Guidelines, a new feature available in both MySQL Community and Enterprise Editions that brings smarter and more flexible query routing to MySQL Architectures, including InnoDB Cluster, ClusterSet, and ReplicaSet. Whether you’re already using MySQL Router or evaluating ways to enhance and simplify application failover and scale workloads more efficiently, Routing Guidelines […]

Conference Presentations

This is the second part of our series on managing on-premises (External) MySQL DB systems in Oracle Cloud Infrastructure (OCI). In this blog, we cover the registration process, fleet monitoring, key metrics, alarms, and events to help you optimize performance and gain operational insights. Ensure that the prerequisites from the first part are completed and that you have the necessary permissions to proceed.

This blog will guide you through setting up and managing On-premises (External) MySQL DB systems in OCI, ensuring optimal performance and operational insights. In this part, we will cover the prerequisite steps before registering and managing External MySQL DB systems.

This blog is the second part of our two-part series on setting up and managing on-premises (External) MySQL DB systems in Oracle Cloud Infrastructure (OCI). In the first part, we covered the prerequisite steps required before registering and managing External MySQL DB systems. In this blog, we will walk you through the registration process, fleet monitoring, key metrics, alarms and […]

MySQL has been evolving rapidly, and with the recent release of MySQL 8.4, there’s a lot to unpack. While MySQL 8.4 is officially dubbed a Long-Term Support (LTS) release, many features introduced between 8.0 and 8.4 have now matured into defaults or become deprecated/removed. This blog provides a comprehensive, side-by-side comparison of the key differences […]