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Displaying posts with tag: mysql-and-variants (reset)
caching_sha2_password Support for ProxySQL Is Finally Available!

ProxySQL recently released version 2.6.0, and going through the release notes, I focused on the following:Added support for caching_sha2_password!This is great news for the community! The caching_sha2_password authentication method for frontend connections is now available. This has been a long-awaited feature …Why?Because in MySQL 8, caching_sha2_password has been the default authentication method. Starting from MySQL […]

How Missing Primary Keys Break Your Galera Cluster

Any Galera documentation about limitations will state that tables must have primary keys. They state that DELETEs are unsupported and other DMLs could have unwanted side-effects such as inconsistent ordering: rows can appear in different order on different nodes in your cluster.If you are not actively relying on row orders, this could seem acceptable. Deletes […]

Help Us Improve MySQL Usability and Double Win!

What makes a great user experience? There are probably as many answers to this question as there are users because we are talking about very subjective and personal feelings and observations.While there are multiple experts at Percona, we also believe that one should not be forced to become a database expert to be able to […]

Backing up and Restoring to AWS S3 With Percona Kubernetes Operators

In our last post, we looked into the lifecycle of applications in Kubernetes. We see that Kubernetes doesn’t handle database backups itself. This is where Kubernetes Operators come into action. They add additional functions to Kubernetes, enabling it to set up, configure, and manage complex applications like databases within a Kubernetes environment for the user.In […]

Considering Alternatives for Your MySQL Migration? Why Percona Should Be Your First Choice

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. If […]

Can Disk Space Be Saved in MySQL by Adding a Primary Key?

Historically, MySQL does not require explicit primary key defined on tables, and it’s like that by default till this day (MySQL version 8.3.0). Such a requirement is imposed through two replication methods, though: Group Replication and Percona XtraDB Cluster (PXC), where using tables without a primary key is not allowed by default. There are many […]

MySQL 8.2.0 Community vs. Enterprise; Is There a Winner?

To be honest, the comparison between the two MySQL distributions is not something that excited me a lot. Mainly because from my MySQL memories, I knew that there is not a real difference between the two distributions when talking about the code base.To my knowledge the differences in the enterprise version are in the additional […]

Are Your MySQL Users Using ‘password’ or ‘thebossisajerk’ as Passwords?

Are your MySQL users using ‘password’, ‘s3cr3t’, or ‘thebossisajerk’ as their passwords? Easy-to-guess passwords can be disastrous to the security of your data, but there is a way to exclude inappropriate words or phrases from being used. The first step is to compile a list of words and phrases you want to exclude, and that […]

In Search of Transparency at FOSDEM

FOSDEM is for sure one of the most respected free and open source software-focused conferences in Europe, which is loved by many, myself included. It is from the point of love I am raising concerns about transparency, which seems to be lacking in regard to some processes at FOSDEM.For many years, as long as I […]

MySQL Table Size Is Way Bigger After Adding a Simple Index; Why?

It is a known good practice to keep only necessary indexes to reduce the write performance and disk space overhead. This simple rule is mentioned briefly in the official MySQL Documentation:, in some cases, the overhead from adding a new index can be way above the expectations! Recently, I’ve been analyzing a customer case like […]

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