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Displaying posts with tag: MySQL (reset)
Developer Interview with Will Earp – Substack Repost

In the recent past, I shared in a Reddit post that I was searching for developers who were interested in participating in a text-based interview for the OpenLampTech publication.

I am super-excited that Will Earp agreed to participate in this developer interview for the OpenLampTech readers.

Read more >>>: Developer Interview with Will Earp – Substack Repost

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The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For …

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How to fix Percona XtraDB Cluster 8.0 Upgrade issues

Are you planning an upgrade for your Percona XtraDB Cluster (PXC)? Upgrading to PXC 8.0 can be a smooth process, but sometimes challenges arise that require careful troubleshooting. In this…

The post How to fix Percona XtraDB Cluster 8.0 Upgrade issues first appeared on Change Is Inevitable.

OpenLampTech issue #94 – Substack Repost

The content keeps dropping and I keep publishing OpenLampTech each and every week. We are nearing the 100-issue milestone. Thanks to you, the OpenLampTech publication is already a success.

Continue reading >>>: OpenLampTech issue #94 – Substack Repost

Custom WooCommerce and Shopify Solutions

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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.

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Understanding How MySQL Collation and Charset Settings Impact Performance

This blog was originally published in February 2019 and was updated in September 2023.

Web applications rely on databases to run the internet, powering everything from e-commerce platforms to social media networks to streaming services. MySQL is one of the most popular database management systems, playing a pivotal role in the functionality and performance of web applications.

In today’s blog, I’ll take a look at MySQL collation and charset settings to shed light on how they impact the performance of web applications and how to use them to effectively communicate with your users.

Understanding Character Sets and Encoding in MySQL

Character sets and encoding in MySQL play a vital role in how data is stored and retrieved in a database. A character set is a collection of characters with unique representations for each character, such as letters, numbers, and symbols, that define how data is …

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Understanding MySQL Triggers: Exploring How Triggers Impact MySQL Memory Allocation

This blog was originally published in November 2021 and was updated in September 2023.

MySQL server performance can sometimes be perplexing, and if you’ve ever wondered about the role of triggers in influencing your MySQL server’s memory allocation, this post is for you. MySQL triggers are a powerful tool for database administrators and developers, enabling them to automate tasks, enforce data consistency, and respond to events within the database seamlessly.

Here, we first cover the basics of MySQL Triggers, and then we take a deeper dive, exploring their impact on memory usage and providing strategies to optimize MySQL server performance.

What is a Trigger in MySQL?

A Trigger in MySQL is a database object that plays a pivotal role in database management. It is essentially a set of instructions or a program that is executed automatically in response to specific events or actions occurring within the …

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Developer and Founder Interview with Dominik Keller – Substack Repost

With the rise and widespread use of low-code tools, Australian-based Five has created an IDE that enables developers to rapidly build out and deploy web applications on a MySQL database.

Custom WooCommerce and Shopify Solutions

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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.

I’m publishing more and more developer and founder text-based interviews in the OpenLampTech publication. I recently …

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OpenLampTech issue #93 – Substack Repost

There is more and more great content online these days. It’s hard to keep up with it all. OpenLampTech is your source of the best curated and original PHP, MySQL, and LAMP stack content. Thanks for reading!

Custom WooCommerce and Shopify Solutions

Discover useful WooCommerce and Shopify custom solutions for your online store today at affordable prices!

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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 #93, we are looking at content on:

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Failover and Recovery Scenarios in InnoDB Cluster and ClusterSet

This blog post will focus on failover and recovery scenarios inside the InnoDB Cluster and ClusterSet environment. To know more about the deployments of these topologies, you can refer to the manuals – InnoDB Cluster and Innodb ClusterSet setup.

In the below snippet, we have two clusters (cluster1 and cluster2), which are connected via an async channel and combined, known as a ClusterSet topology. We are going to use the below topology in all of our cases.

MySQL  127.0.0.1:3308 ssl  JS > myclusterset.status({extended: 1})
{
    "clusters": {
        "Cluster1": {
            "clusterRole": "PRIMARY", …
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The Deprecation of qpress/QuickLZ Compression Algorithm

To reduce the backup size, save storage space, and speed up the backup and restore process, you can compress a backup with Percona XtraBackup. The XtraBackup --compress option makes XtraBackup compress all output data, including the transaction log file and metadata files, with one of the supported compression

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MySQL 8 and Replication Observability

Many of us, old MySQL DBAs used Seconds_Behind_Source from SHOW REPLICA STATUS to find out the status and correct execution of (asynchronous) replication.

Please pay attention of the new terminology. I’m sure we’ve all used the old terminology.

However, MySQL replication has evolved a lot and the replication team has worked to include a lot of useful information about all the replication flavors available with MySQL.

For example, we’ve added parallel replication, group replication, … all that information is missing from the the good old SHOW REPLICA STATUS result.

There much better ways to monitoring and observing the replication process(es) using Performance_Schema.

Currently in Performance_Schema, there are 15 tables relating to replication instrumentation:

+------------------------------------------------------+
| …
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