In this blog, we will look at the differences between LTS (Long Term Stable) versions of Percona Server for MySQL. Released in April 2019, MySQL 8.0 represented a major change from the previous version, 5.7, introducing significant changes to the data dictionary and enabling many features and enhancements. It also provided no direct downgrade path, […]

Percona is excited to announce the community release of our MySQL 5.7 End-of-Life (EOL) source code for both Percona Server for MySQL (PS) version 5.7.44-52 and Percona XtraDB Cluster (PXC) version 5.7.44-31.65.5. This release is an accumulation of several customer-only releases we’ve done as part of our post-EOL support for MySQL 5.7, and we’re happy […]

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 […]

You know about MySQL; we know about MySQL. After all, it’s been the most popular database system for years now. And now that we have that out of the way, on to the more important stuff! Because MySQL is so popular, you might be considering migrating your database to MySQL Community Edition or MySQL Enterprise. […]

This article will be helpful if you use the Percona Monitoring and Management (PMM) instance and alert notifications, as it is nice to capture the image of the graph when you receive the alert. We will see how to capture and attach the image of the graph when receiving the alert notification (email, telegram, Slack, […]

This blog post explains the cause of “ERROR 1412 (HY000): Table definition has changed, please retry transaction” with the specific Isolation level settings. Background As per the MySQL documentation, this error should occur for “operations that make a temporary copy of the original table and delete the original table when the temporary copy is built.” […]

This blog is not intended to offer anything extraordinary; instead, consider it an anecdote, a lesson, or simply a proper way of doing things without the need to run a test when in doubt. That said, I must emphasize that, as always, testing everything before deploying to production is essential. Let’s dive into the story: […]

Even though I used a dedicated Kubernetes cluster to host my test database, I had this belief that by not explicitly allocating (or requesting, in Kubernetes vocabulary) CPU resources to my Percona XtraDB Cluster (PXC) pods or yet making just a small request, Kubernetes could be delaying access to the free CPU cycles available on […]

Historically, Percona has been providing our customers with enterprise-grade solutions for MySQL that meet the highest standards of compatibility and compliance. To follow this commitment, Percona now offers RHEL9-certified builds for the users of Percona software for MySQL. These builds have been rigorously tested and are available as rpm packages, ensuring seamless integration with your […]

The release of Percona Server for MySQL 8.4.0 includes the new UUID_VX component, which implements UUID versions 1, 3, 4, 5, 6, and 7 according to recently published RFC 9562. UUIDs (Universally Unique Identifiers) are unique identifiers that can be generated independently without a central authority or coordination with other parties. Unlike sequential integer identifiers, which […]