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Why MySQL Replication Is Fast

Replication being slow—replication lag—is a common complaint, but MySQL replication is actually really fast. Let’s run a controlled experiment and peek inside the Performance Schema and binary logs to see why.

Getting Help in MySQL Shell

MySQL Shell offer many features to make life easier for DBAs and developers. In this post we talk discuss the comprehensives help system in MySQL Shell.

MySQL Shorts - Episode #64 Released

Episode #64 of MySQL Shorts in now available!

MySQL New York Meetup Returns

MySQL Meetup

Machine Learning with MySQL HeatWave and predictions in Grafana

How to visualize predictions in Grafana using MySQL HeatWave Machine Learning

Machine Learning with MySQL HeatWave and predictions in Grafana

In MySQL HeatWave, the Database as a Service (DBaaS) offered by Oracle, Machine Learning is incorporated to provide database administrators (DBAs) and developers with an optimal experience.

Those tools are the Auto ML advisors like the autopilot indexing for example.

MySQL HeatWave is also an invaluable asset for Data Analysts, offering straightforward tools that streamline the process of creating predictive models through data training and scoring.

The Data

The data we are using is the Bank Marketing data related to marketing campaigns over phone calls of a Portuguese banking …

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Executing System Commands in MySQL Shell

MySQL Shell offer many features to make life easier for DBAs and developers. In this post we talk about how to execute system commands inside MySQL Shell.

Running External Scripts in MySQL Shell

MySQl Shell offer many features to make life easier for DBAs and developers. In this post we talk about how to execute external JavaScript, Python, or SQL files indie MySQL Shell.

Where can you find MySQL during June - August 2024

Where is MySQL, 6-9, 2024

Making my MySQL InnoDB Cluster safe from naughtiness

TL;DR: Make sure to run “SET persist_only disabled_storage_engines=’MyISAM’, persist sql_generate_invisible_primary_key=ON;” on all instances and restart each one in your MySQL InnoDB Cluster.

Ok, what does “safe from naughtiness” mean?:
– Anyone creating tables that aren’t InnoDB, as this doesn’t make sense, after all, it is an “InnoDB” cluster.
– Making sure all tables have a Primary Key (invisible or not).
– Making sure that my (invisible) primary keys are visible to the cluster as it will rightfully complain if they aren’t!

This basically means that once you’ve got it all up and running you won’t run into those horrible situations whereby someone, somewhere, creates a MyISAM table that didn’t have a Primary Key and thus leave you with a broken cluster.

Eg.

MySQL rtnode-01:3306 ssl JS > vlc.status()
{
 "clusterName": "VLC",
 "clusterRole": "PRIMARY", …
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