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Using the new MySQL Shell Reporting Framework to monitor InnoDB Cluster

With MySQL Shell 8.0.16, a new very interesting feature was released: the Reporting Framework. Jesper already blogged about it and I recommend you to read his articles if you are interested in writing your own report: https://mysql.wisborg.dk/2019/04/26/mysql-shell-8-0-16-built-in-reports/ https://mysql.wisborg.dk/2019/04/27/mysql-shell-8-0-16-user-defined-reports/ I this post, I will show you one user-defined report that can be used to monitor your MySQL InnoDB Cluster / Group … Read More


What configuration settings did I change on my MySQL Server ?

This post is just a reminder on how to find which settings have been set on MySQL Server. If you have modified some settings from a configuration file or during runtime (persisted or not), these two queries will show you what are the values and how they were set. Even if the value is the same as the default (COMPILED) … Read More


MySQL 8.0.16: how to validate JSON values in NoSQL with check constraint

As you may have noticed, MySQL 8.0.16 has been released today ! One of the major long expected feature is the support of CHECK contraints . My colleague, Dave Stokes, already posted an article explaining how this works. In this post, I wanted to show how we could take advantage of this new feature to validate JSON values. Let’s take … Read More


MySQL InnoDB Cluster : avoid split-brain while forcing quorum

We saw yesterday that when an issue (like network splitting), it’s possible to remain with a partitioned cluster where none of the partition have quorum (majority of members). For more info read how to manage a split-brain situation.


MySQL InnoDB Cluster – how to manage a split-brain situation

Everywhere I go to present MySQL InnoDB Cluster, during the demo of creating a cluster, many people doesn’t understand why when I’ve 2 members, my cluster is not yet tolerant to any failure.


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