by Anil Joshi | Jun 24, 2024 | Insight for DBAs, Insight for Developers, Monitoring, MySQL
Flow control is not a new term, and we have already heard it a lot of times in Percona XtraDB Cluster/Galera-based environments. In very simple terms, it means the cluster node can’t keep up with the cluster write pace. The write rate is too high, or the nodes...
by Peter Zaitsev | Jun 17, 2024 | Database Trends, MySQL, Open Source
I got quite a response to my article on whether Oracle is Killing MySQL, including a couple of great write-ups on The Register (1, 2) on the topic. There are a few questions in this discussion that I think are worth addressing. AWS and other cloud vendors compete,...
by Marco Tusa | Jun 13, 2024 | Benchmarks, Database Trends, MySQL
At Percona, we monitor our users’ needs and try to accommodate them. One aspect we monitor is the MySQL version distribution/utilization. Observing that, we identified a very interesting trend: the lack of migration from 5.7 to 8.x, or better yet, the need of...
by Kamil Holubicki | Jun 12, 2024 | Insight for DBAs, MySQL, Percona Software
Keeping Your Data Safe: An Introduction to Data-at-Rest Encryption in Percona XtraDB Cluster. In the first part of this blog post, we learned how to enable GCache and Record-Set cache encryption in Percona XtraDB Cluster. This part will explore the details of the...
by Peter Zaitsev | Jun 10, 2024 | Database Trends, MySQL, Open Source
Some 15 years ago, when Oracle acquired Sun, and hence MySQL, there was a lot of talk on the internet over when Oracle was going to “Kill MySQL”. Multiple theories were circled around, ranging from killing MySQL altogether, so there is less competition to proprietary...
by Kamil Holubicki | Jun 7, 2024 | Insight for DBAs, MySQL, Percona Software
Keeping Your Data Safe: An Introduction to Data-at-Rest Encryption in Percona XtraDB Cluster. Data breaches are a major concern today. Whether you’re a business owner or value your privacy, the thought of your sensitive information being exposed is unsettling....
by Edwin Wang | May 20, 2024 | MySQL, Percona Software
If you were to ask me the question, “Would it be possible to set up a replicate filter within the Percona XtraDB Cluster?” my immediate response would be to question you right back. Why would you even want the cluster nodes to have different data when you’re using a...
by Arunjith Aravindan | May 13, 2024 | Insight for DBAs, MySQL, Percona Software
Table modifications are a routine task for database administrators. The blog post Using Percona Toolkit to Alter Database Tables Online: A Controlled Approach provides insights into the process of altering tables online in a controlled manner, ensuring uninterrupted...
by David Stokes | May 1, 2024 | Insight for DBAs, MySQL
MySQL 8.4 has now been officially released, and this is a quick review of what is in the release notes. This is momentous as it is designated a Long-Term Support (LTS) release. Various 8.0 releases introduced material changes that impacted speed and stability, causing...
by Taras Onishchuk | Apr 19, 2024 | Insight for DBAs, MySQL
Yes, but now it likes them more, and here is why. Intro Using the LIKE clause to filter triggers or views from a specific table is common. However, it can play a trick on you, especially if you don’t get to see the output (i.e., in a non-interactive session)....
by Roberto De Bem | Apr 16, 2024 | Insight for DBAs, MariaDB, MySQL
We usually receive and see some questions regarding the charset levels in MySQL, especially after the deprecation of utf8mb3 and the new default uf8mb4. If you understand how the charset works on MySQL but have some questions regarding this change, please check out...
by Przemysław Malkowski | Apr 15, 2024 | Insight for DBAs, MariaDB, MySQL
If you have enough experience with MySQL, it is very possible that you stumbled upon an unusually slow SELECT COUNT(*) FROM TABLE; query execution, at least occasionally. Recently, I had a chance to investigate some of these cases closer, and it stunned me what huge...
by Edith Puclla | Apr 9, 2024 | Insight for DBAs, MySQL, Percona Services, Percona Software
We met with Vinicius Grippa, a Senior Support Engineer at Percona. He is also active in the open source community and was recognized as a MySQL Rock Star in 2023. In the previous interview with Vinicius, we discussed the upcoming End of Life (EOL) for MySQL 5.7. Now...
by Kedar Vaijanapurkar | Apr 2, 2024 | Insight for DBAs, Monitoring, MySQL, Percona Software
This blog was originally published in June of 2023 and updated in April of 2024. As a MySQL database administrator, keeping a close eye on the performance of your MySQL server is crucial to ensure optimal database operations. A monitoring tool like Percona Monitoring...
by Ananias Tsalouchidis | Apr 1, 2024 | Insight for DBAs, MySQL, ProxySQL
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...
by Larry Xia | Mar 29, 2024 | Insight for DBAs, MySQL
At Percona Managed Services, we manage Percona for MySQL, MySQL Community, MariaDB, and other software. Sometimes we might need to use mydumper/myloader to restore one or more databases from the production environment to the lower environment for testing. The...
by Yoann La Cancellera | Mar 28, 2024 | Insight for DBAs, Insight for Developers, MySQL
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...
by David Stokes | Mar 26, 2024 | MySQL, Open Source, Percona Software
MySQL is a very popular database and a good choice for new projects. But is it the best choice? Luckily you have several options for this choice. MySQL Community vs. Enterprise Editions Traditionally, the MySQL Community Edition has been a mainstay in the open source...
by Bartek Gatz | Mar 5, 2024 | MySQL, Percona Software
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...
by Edith Puclla | Feb 22, 2024 | Cloud, MySQL, Percona Software
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,...
