This article is the second of the new series dedicated on how a DBA can find the info he needs with MySQL Database Service in Oracle Cloud Infrastructure. The first article was dedicated on Backups, this one is about Disk Space Utilization. This time we have two options to retrieve useful information related to disk […]

In this new series of articles we will explore the different sources of information available when using MySQL Database Service on OCI to effectively perform your daily DBA job.

Of course there is way less things to take care of, like backups, upgrades, operating system and hardware maintenance, …

But as a serious DBA, you want to know the status of all this and maintain some control.

Some information is available on OCI’s webconsole and some in Performance_Schema and Sys.

If you use MySQL Shell for Visual Studio Code, you have the possibility to see an overview of your server using the Performance Dashboard:

But today we will take a look at the backup, a very important responsibility of the DBA.

When you use MySQL Database Service on OCI, you can define the backup policy at the DB Instance’s creation. You can always modify it later:

In …

In this new series of articles we will explore the different sources of information available when using MySQL Database Service on OCI to effectively perform your daily DBA job. Of course there is way less things to take care of, like backups, upgrades, operating system and hardware maintenance, … But as a serious DBA, you […]

I’ve been enjoying OpenLampTech for 70 weeks now. Wow! That’s a lot of publishing. But, more importantly, a lot of learning. And forming relationships with the readers. I am so grateful you are reading OpenLampTech. Thanks!

The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For Everyone”, absolutely free when you subscribe to the OpenLampTech newsletter.

In OpenLampTech issue #70, I am sharing some fantastic articles on:

• ‘Tainted’ PHP code
• Linux package dependencies
• 10 useful PHP array functions
• SQL NULL value
• And much, much more

Thanks so much for …

I recently had the chance to read in preview Bill Karwin‘s new book: SQL Antipatterns, Volume 1: Avoiding the Pitfalls of Database Programming. This book is a rework of Bill’s best seller from 2010. The new book can be considered as the second edition and is updated with Bill’s latest observations about common mistakes. The […]

Overview

HAProxy, ProxySQL, MySQL Router (AKA MySQL Proxy), in the last few years I had to answer multiple times on what proxy to use and in what scenario. When designing an architecture there are many components that need to be considered before deciding what is the best solution.

When deciding what to pick, there are many things to consider like where the proxy needs to be, if it “just” needs to redirect the connections or if more features need to be in, like caching, filtering, or if it needs to be integrated with some MySQL embedded automation.

Given that, there never was a single straight answer, instead an analysis needs to be done. Only after a better understanding of the environment, the needs and the evolution that the platform needs to achieve is it possible to decide what will be the better choice.

However recently we have seen an increase in usage of MySQL on Kubernetes, especially with the …

2022 was an exciting year for Percona Monitoring and Management (PMM). We’ve added and improved many features, including Alerting and Backup Management. These updates are designed to keep databases running at peak performance and simplify database operations. But as companies grow and see more demand for their databases, we need to ensure that PMM also remains scalable so you don’t need to worry about its performance while tending to the rest of your environment.

PMM2 uses VictoriaMetrics (VM) as its metrics storage engine. Percona’s co-Founder Peter Zaitsev wrote a detailed post about migration from Prometheus to VictoriaMetrics, One of the most significant differences in …

Let’s look at how you can run Percona databases on Kubernetes, the easy way.

Chances are that if you are using the latest Percona Monitoring and Management (PMM) version, you have seen the availability of the new Percona Database as a Service (DBaaS). If not, go and get a glimpse of the fantastic feature with our docs on DBaaS – Percona Monitoring and Management.

Now, if you like it and wanna give it a try! (Yay!), but you don’t wanna deal with Kubernetes, (nay)o worries; we have a tool for you. Introducing the Percona DBaaS Infrastructure Creator, or Percona My Database as a Service (MyDBaaS).

My Database as a Service

…

When we need to upgrade from MySQL 5.7 to MySQL 8, we could choose to do an in-place upgrade or set up another MySQL 8 server(s) from the existing running MySQL 5.7 replica.

This article will explain how to set up MySQL 8 as a replica from an existing MySQL 5.7 server with Percona XtraBackup.

In my lab, we have two test nodes:

PRIMARY:  mysql57 (192.168.56.111)    with   Percona Server 5.7 and  xtrabackup 2.4 installed
REPLICA:  mysql8    (192.168.56.113)   with  Percona Server 8  and   xtrabackup 8.0 installed

0. Pre-flight check with MySQL upgrade checker utility

Let’s run the MySQL upgrade checker utility to verify whether MySQL 5.7 server instances are ready for an upgrade.

MySQL  localhost  JS > util.checkForServerUpgrade('root@localhost:3306', {"password":"####", …

Today, the book I would like to recommend is Efficient MySQL Performance – Best Practices and Techniques, Daniel Nichter, O’Reilly, 2021. Best Practices and Techniques is a comprehensive guide to optimizing the performance of MySQL databases. Whether you’re a developer, database administrator, or system administrator, this book can provide valuable insights and techniques to help […]