MySQL 8.0: Excluding the Buffer Pool from a Core File
The latest release of MySQL 8.0 introduces a new dynamic system variable @@innodb_buffer_pool_in_core_file which lets you omit the Buffer Pool’s memory content when generating a core file. This change...
View ArticleThe complete list of new features in MySQL 8.0
There are over 250 new features in MySQL 8.0. The MySQL Manual is very good, but verbose. This is a list of new features in short bullet form. We have tried very hard to make sure each feature is only...
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Upcoming Webinar Wed 1/30: Percona XtraDB Cluster: Failure Scenarios and...
Please join Percona’s Senior Technical Manager, Alkin Tezuysal, and Percona’s Percona XtraDB Cluster Lead, Krunal Bauskar as they present their talk, Percona XtraDB Cluster: Failure Scenarios and...
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Supercharge your Reporting: Aurora Autoscaling and Custom Endpoints
Whenever we talk about the scalability of databases its end up with a lot of discussions and effort to implement. Some of you may even argue that it is a bad idea to auto scale the transactional...
View ArticleServer version in the binary log
Replication topologies, whether master-slave or group replication setups, may be composed of servers using different MySQL versions. In MySQL 8.0.14, each transaction’s immediate and original server...
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Percona Server for MySQL 5.6.43-84.3 Is Now Available
Percona is glad to announce the release of Percona Server for MySQL 5.6.43-84.3 on January 29, 2019 (Downloads are available here and from the Percona Software Repositories). This release merges...
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Open Source Database Conference CFP Deadline Sunday January 27
This year at our Open Source Database Conference we’re celebrating open source database technologies that don’t fit into the MySQL®, MongoDB®, MariaDB®, or PostgreSQL realms by featuring them in their...
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Django Quiz 2016
I realized I’ve posted the 2017 and 2018 editions of the London Django Meetup December quizzes on my blog, but forgot to post the first one in 2016. So here it is reproduced below, if you’d like to...
View ArticleHow to backup your InnoDB Cluster ?
MySQL InnoDB is more and more popular. The adoption of it is even faster than I expected. Recently, during my travel in Stockholm, Sweden, a customer asked me what was the best practice to backup a...
View ArticleInspecting the Content of a MySQL Histogram
FOSDEM is coming up. I do not have a presentation in the MySQL and Friends devroom this year, but it reminded me that I had planned to post a follow-up to my presentation from last year. As part of...
View ArticleA Word from the Incoming CEO
It is my pleasure and honour to join the MariaDB Foundation as its new CEO from 1 Feb 2019. Following MariaDB closely since its inception, I welcome the opportunity to be focusing completely on...
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MySQL Performance Benchmarking: MySQL 5.7 vs MySQL 8.0
MySQL 8.0 brought enormous changes and modifications that were pushed by the Oracle MySQL Team. Physical files have been changed. For instance, *.frm, *.TRG, *.TRN, and *.par no longer exist. Tons of...
View ArticleWhat the Heck is a Lateral Derived Table?
MySQL 8.0.14 came with Lateral Derived Tables as a new feature. But what is that and how do you use them?Let's start what a derived table is. According to the manual (link below) A derived table is...
View ArticleConfiguring efficient MySQL Logrotate
I am a Junior DBA at Mydbops. This is my first blog professionally, I would like to brief my encounter with Log-rotate in first few weeks of my work, Hope it will help other beginners as well. This...
View ArticleMariaDB 5.5.63 and MariaDB Connector/ODBC 3.1.0 now available
The MariaDB Foundation is pleased to announce the availability of MariaDB 5.5.63, the latest stable release in the MariaDB 5.5 series and MariaDB Connector/ODBC 3.1.0, the first release candidate in...
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MySQL Tutorial – Understanding The Seconds Behind Master Value
In a MySQL hosting replication setup, the parameter Seconds_Behind_Master (SBM), as displayed by the SHOW SLAVE STATUS command, is commonly used as an indication of the current replication lag of the...
View ArticleFriday Feb 1st it is MySQL Day !
We are less than 48h before the more and more popular pre-FOSDEM MySQL Day ! Unfortunately one of our speaker won’t be able to deliver his talk. Indeed, Giuseppe had ton cancel is talk on containers...
View Articlebinlog-row-event-max-size system variable in MySQL 8.0.14
As you may have noticed by now, we are continuously improving and enhancing the experience of managing a MySQL server. Furthermore, we have also released tools, such as MySQL shell, that make advanced...
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More Statistics for Slow Queries: log_slow_extra
Tweet The slow query log is the trusted old method of recording slow query, so the database administrator can determine which queries are in the most need for optimization. Since MySQL 5.6, it has to...
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How Roles Have Changed in MySQL 8.0 and How to Use Them
Database Security is important to any MySQL setup. Users are the foundation of any system. In terms of database systems, I generally think of them in two distinct groups: Application, service, or...
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