In libera:#mysql a user has been running MySQL in a docker container with mysql:latest. This container got automatically upgraded to MySQL 9.0.0, an innovation release.

Part of the 9.0 release is the removal of the mysql_native_password plugin, which has been deprecated since 8.0. The user now can no longer login to their database. They have no backup and no replica.

We recreate the problem from scratch, using docker, and then recover the instance.

Creating a test setup

On my system, I am using LVM2, and I am routinely using the XFS file system. I am creating a 10 GB sized test filesystem, which I mount to /a. In that, we create a mysql and a conf directory.

The official …

MySQL Shell offer many features to make life easier for DBAs and developers. In this post we discuss some of the options available to use when loading database dumps.

MySQL is Open Source and accept contributions from the Community. This is the list of contributions accepted in the last releases.

On July 1st, 3 new releases of MySQL came out. Indeed, we released the next 8.0 (8.0.38), the first update of the 8.4 LTS (8.4.1), and the very first 9.0 as Innovation Release. We now support 3 versions of the most popular Open Source database.

With these releases, we also want to thank all the great contributors who send patches to MySQL.

For some time now, all the contributors have also been highlighted in the Release Notes, but we never thank enough, so let’s take back the good habits of listing them in a dedicated blog post.

Some contributions were merged into multiple versions. Let’s have a look at all these contributions:

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MySQL Shell offer many features to make life easier for DBAs and developers. In this post we discuss some of the options available to use when dumping database schemas and data.

MySQL 9.0 was released on July 1, 2024. This is an ‘Innovation’ release, which means it provides access to the latest features and improvements in MySQL technologies. Innovation releases are the opposite of the Long Term Support (LTS) releases, where stability is the top priority, and only needed security and other fixes are available. This […]

FastAPI is a modern, fast (high-performance), web framework for building APIs with Python based on standard Python type hints.

MySQL HeatWave is a fully managed database service, powered by the HeatWave in-memory query accelerator. It’s the only cloud service that combines transactions, real-time analytics across data warehouses and data lakes, and machine learning in one MySQL Database—without the complexity, latency, risks, and cost of ETL duplication.

Note: To fix a critical bug we did out of cycle releases - 8.0.39, 8.4.2, 9.0.1 MySQL Server 9.0.1 Innovation, 8.4.2 LTS, 8.0.39, are now available for download and in the MySQL HeatWave Database Service. These are the latest General Availability (GA) releases as of July 24, 2024.

When running tests, it is sometimes useful to slow down IOs to clearly show the impact of reading from the disk.  Modern laptops and servers usually have fast local SSDs, and most cloud vendors provide, in addition to fast local disks, relatively fast network block devices (EBS for AWS and Persistent Disk for GCP).  Even when using magnetic network block devices, IOs are not guaranteed

Some of our Percona Support customers report performance degradation after a major MySQL upgrade, and there can be many different reasons for this. These days, the most common major upgrade is from MySQL 5.7 (which recently reached EOL) to 8.0, and I am going to emphasize one important case that affects many database instances. Range […]