MySQL HeatWave Lakehouse is now available on AWS, enabling AWS customers to run transaction processing, real-time analytics across data warehouses and data lakes, and machine learning in one cloud database service. They can replace five AWS services with one, reducing complexity and obtaining the best price-performance in the industry for analytics.

To copy a MySQL server to another server or to the cloud, there are several ways. We can distinguish between two different types of copy: The physical copy is often the fastest. However, it requires some tools to ensure that you have a consistent online backup. For example, you can use MySQL Enterprise Backup (MEB). […]

Learn how to copy a MySQL instance to another server or to the cloud.

To copy a MySQL server to another server or to the cloud, there are several ways.

We can distinguish between two different types of copy:

• physical copy
• logical copy

The physical copy is often the fastest. However, it requires some tools to ensure that you have a consistent online backup. For example, you can use MySQL Enterprise Backup (MEB).

Alternatively, it’s possible to use the CLONE plug-in to provision a new instance with existing data from a source server. This is my preferred approach.

Finally, the last physical solution is the use of a file system snapshot, but this requires the right infrastructure and even more care to have a consistent …

Whenever you install your favorite MySQL server on a freshly created Ubuntu instance, you start by updating the configuration for MySQL, such as configuring buffer pool, changing the default datadir director, and disabling one of the most outstanding features – query cache. It’s a nice thing to do, but first things first. Let’s review the best practices we usually follow in Managed Services before using your MySQL server in production and stage env, even for home play purposes.

Memory

Our usual recommendation is to use specific memory parameters, which we suggest to ensure optimal performance.

• To prevent out-of-memory (OOM) episodes, the OOM Score has to be set to -800.
• vm.swappiness = 1
• Disable Transparent Huge Pages
• Install and enable jemalloc. Let’s briefly go through each setting to understand why adjustments are needed. Afterward, we will see how to configure these …

Scaling a database presents challenges. As you grow, you might begin having trouble handling ever-increasing throughput or data size. You might find that query latency is getting worse. You might be pushing the limits of your hardware. When this happens, a classic option is vertically scaling your database by getting better hardware, but is there a better way? And what happens when you reach the vertical limits? This is where horizontal sharding comes in. In this article, we'll cover some common indicators that your database may be ready for horizontal sharding. We'll also look at some measures you can implement until then. Let's dig in. Hitting the limits There are lots of different limits that you can run into when you're scaling up. At the database level, you might be maxing out CPU, memory, disk space, or IOPS. Running into these limits can have real consequences for your business. Database operations like schema changes will start taking longer, …

OpenLampTech continues to publish great content for the PHP, MySQL, LAMP stack, and open-source communities. This week, I (am resharing) have another awesome text-based developer interview for you with Wendell Adriel. Thanks for reading!

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Visit and read Wendell’s fantastic interview here: https://openlamptech.substack.com/p/openlamptech-developer-interview-18d

If you’re not already …

In my earlier blog (here) I gave a high level introduction of INSTANT ADD/DROP COLUMNS feature which was introduced in 8.0.29. Now in this blog I will go into low level details of design and its working. Before we go into more details, let’s talk about the on-disk row in InnoDB as it is very […]

This is the second blog in the series where I talk about INSTANT ADD/DROP columns feature introduced in MySQL 8.0. After the introductory Blog, this blog aims to provide more design details.

This blog post discusses the limitations of the MySQL Clone plugin.

The MySQL clone plugin significantly simplifies the process of replica provisioning. All you need to do is:

• Ensure that the source server has binary logs enabled
• Grant appropriate permissions
• Execute the CLONE INSTANCE  command on the recipient

This works extremely easily when you provision a new replica that doesn’t have any data.

Due to its simplicity, you may want to use the clone plugin instead of a backup to restore a server that survives data inconsistency or corruption. E.g., after crash.

However, if you have data on your replica, you need to consider how you will recover if the CLONE INSTANCE  command fails with an error.

CLONE INSTANCE  command, by default, works as follows:

• Checks prerequisites on the replica
• Wipes out data …