Recently I blogged about the new default authentication plugin in MySQL 8.0 and I got some comments complaining that this new authentication plugin is breaking half of applications. So first of all, if you are using an old connector or…
Today, yet another blog post about improvements in MySQL 8.0 related to Performance_Schema. Before MySQL 8.0 it was not always easy to get an example of the queries you could find in Performance_Schema when looking for statements summaries. You had…
With MySQL 8.0, the error logging subsystem has been redesigned to use the new component architecture. Thanks to this new redesign, now the log events can be filtered, the output can be sent to multiple destinations (different formats like JSON).…
In MySQL 8.0, the engineers have added useful meta-data to the table SETUP_INSTRUMENT. This table lists the classes of instrumented objects for which events can be collected. To the NAME, ENABLES and TIMED columns, were added PROPERTIES, VOLATILITY and DOCUMENTATION.…
Recently, I received a question related to GO as delimter to send a query. The user got some generated statements from a third party tool that looked like this:
MySQL 8.0’s new default authentication plugin means more secure connections for users connections but also for replication… but you need to be aware of it ! Yesterday Giuseppe – the datacharmer – Maxia, submitted a bug related to a strange…
With MySQL 8.0, engineers improved the visibility of data locking. Usually it was not that easy to deal with the output of SHOW ENGINE INNODB STATUS and mixing Information_Schema tables like INNODB_LOCKS and INNODB_LOCK_WAITS. So in MySQL 8.0 we instrument…
As you may already know, MySQL 8.0 is coming with SQL Roles . I’ve already quoted them before in some posts (here and here). Giuseppe Maxia is doing a great job testing and promoting them (thank you for that!). Of…
Prior to MySQL 8.0, MySQL was missing a very well know feature in other RDBMS: optimizer histograms. The Optimizer Team implemented this feature as more and more MySQL DBAs were requesting it. Definition But what are histograms ? For wikipedia,…
Today the call for participation for Oracle Open World 2018 has started. The 2018’s edition will take place in San Francisco as usual, from October 22nd to 25th. As every year, MySQL will be present and if you want to…
As for each previous version, to upgrade to MySQL 8.0 you must first read the upgrade section in the manual. It’s important to know that you should upgrade without skipping a major version, so upgrade from 5.6 to 8.0 is…
I received many request about MySQL High Availability Architecture. There are a lot of tools, but how can we use them to achieve MySQL HA without over engineering everything. To answer such demand, there is no generic architecture, of…
As MySQL Community Manager, I am an employee of Oracle and the views expressed on this blog are my own and do not necessarily reflect the views of Oracle.
You can find articles I wrote on Oracle’s blog.