by Carlos Tutte | Jan 21, 2021 | Insight for DBAs, Insight for Developers, MySQL
Although how range_optimizer_max_mem_size operates is explained in the official doc, it’s not a well-known variable and surely not a variable you need to modify under most circumstances. But from time to time we get some performance tickets related to this. What...
by Marco Tusa | Jan 20, 2021 | Insight for DBAs, Insight for Developers, MySQL
As many of you have seen already, MySQL 8.0.23 is available for download (release notes). Today our dear LeFred thanked all the numerous contributors to bug fixes. About this: let me mention our two people involved in bug fixing, Venkatesh Prasad Venugopal and Kamil...
by Pep Pla | Jan 19, 2021 | Benchmarks, Insight for DBAs, MySQL, Percona Software
Large replication topologies are quite common nowadays, and this kind of architecture often requires a quick method to rebuild a replica from another server. The Clone Plugin, available since MySQL 8.0.17, is a great feature that allows cloning databases out of the...
by Sri Sakthivel | Jan 15, 2021 | Insight for DBAs, Insight for Developers, MySQL
The “SHOW PROCESSLIST” command is very famous and very useful for MySQL DBAs. It will help you to understand the ongoing thread activities and their current states. By default, the “show processlist” output details will be collected from the thread manager, and...
by Przemysław Malkowski | Jan 14, 2021 | Insight for DBAs, MongoDB, MySQL, Percona Software, Security
by David Quilty | Jan 12, 2021 | Monitoring, MySQL, Percona Software, Webinars
Join us as Michael Coburn, Percona Product Manager, discusses two methods to identify and troubleshoot problematic MySQL queries using the RED Method and Percona Monitoring and Management (PMM) Query Analytics. He will also highlight specific Dashboards in PMM that...
by Sri Sakthivel | Jan 11, 2021 | MySQL, Open Source, Percona Software
In this blog, I am going to explain the different ways of electing the PRIMARY node in MySQL group replication. Before MySQL 8.0.2, primary election was based on the member’s UUID, with the lowest UUID elected as the new primary in the event of a failover. From...
by Marco Tusa | Jan 11, 2021 | Cloud, MySQL, Percona Software, ProxySQL
Percona Operator for MySQL based on Percona XtraDB Cluster comes with two different proxies, HAProxy and ProxySQL. While the initial version was based on ProxySQL, in time, Percona opted to set HAProxy as the default Proxy for the operator, without removing ProxySQL. ...
by Fernando Mattera | Jan 8, 2021 | Insight for DBAs, MySQL, Percona Software
Today we are going to present you with another way to make a database copy between servers using our Percona XtraBackup utility. What is the difference with many others existing on the web? Not many, but they are interesting in terms of performance and availability....
by Michael Patrick | Jan 8, 2021 | Insight for DBAs, Insight for Developers, MySQL, Open Source
It has been some time since I have posted updates to my plugins. After the initial version, I decided to split the plugins into categories of metrics. This will allow users to choose whether they want to install all of the plugins or only select ones they care...
by Brian Sumpter | Jan 7, 2021 | Database Trends, MySQL, Percona Services, Security
In previous TAM Enterprise Experiences posts, we have outlined typical aspects of utilizing MySQL in an Enterprise environment. One thing we have not yet covered is the topic of database encryption, both from the standpoint of business requirements as well as some of...
by Stephen Thorn | Jan 6, 2021 | Cloud, Insight for DBAs, MySQL, Webinars
Earlier in November, we had a chance to present the “Google Cloud Platform: MySQL at Scale with Reliable HA.” We discussed different approaches to hosting MySQL in Google Cloud Platform with the available options’ pros and cons. This webinar was recorded and can...
by Marcelo Altmann | Dec 28, 2020 | Cloud, Insight for DBAs, MySQL, Percona Software
A lot of elements take part in a good backup strategy. Two of them are: Where to store your backups – Never on the same server. Preferable not in the same datacenter. Ideally far enough so you can restore in case of a natural disaster (region flood, extended...
by Marcelo Altmann | Dec 22, 2020 | Insight for DBAs, MySQL, Percona Software
MySQL 5.7, alongside other many improvements, brought bulk load for creating an index (WL#7277 to be specific), which made ADD INDEX operations much faster by disabling redo logging and making the changes directly to tablespace files. This change requires extra care...
by Ivan Groenewold | Dec 21, 2020 | Cloud, Insight for DBAs, MySQL, Percona Services
As mentioned in the AWS discussion forum back in October, Amazon has started the end of life (EOL) process for RDS MySQL version 5.5. What this means is: AWS will upgrade RDS instances to MySQL 5.7 starting February 9 2021 00:00 UTC during your next defined...
by Sri Sakthivel | Dec 16, 2020 | Insight for DBAs, MySQL, Open Source
MySQL Shell is an advanced client tool that has many features and is easy to use. The recent MySQL release (MySQL 8.0.22) has the utility “exportTable()”, which supports exporting the data into a file from a table using MySQL shell. The exported data file can be...
by Peter Zaitsev | Dec 7, 2020 | MySQL, Open Source, Security
As you may know, MySQL 5.6 will reach EOL (“End of Life”) in February 2021. This means in about two months, there will be no more updates, and more importantly, no more security fixes for discovered vulnerabilities. You may be well ahead of the curve...
by Charly Batista | Dec 4, 2020 | MySQL, Open Source, Security
Getting MySQL working with self-signed SSL certificates is pretty simple. Having it working with a certificate signed by a trusted authority is also very simple, we just need to set the correct path and privileges to the file. The problem comes when we need to make...
by Vinicius Grippa | Dec 2, 2020 | Insight for DBAs, MySQL, Percona Software
The benefits of jemalloc versus glibc memory allocator for use with MySQL have been widely discussed. With jemalloc (along with Transparent Huge Pages disabled) there is less memory fragmentation, and thus more efficient resource management of the server memory. For...
by Marco Tusa | Nov 30, 2020 | MySQL, Open Source, Percona Software, ProxySQL
How scheduler and script stand in supporting failover (Percona and Marco example) In part one of this series, I had illustrated how simple scenarios may fail or have problems when using Galera native support inside ProxySQL. In this post, I will repeat the same...
