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MySQL InnoDB Cluster – consistency levels

Consistency during reads have been a small concern from the adopters of MySQL InnoDB Cluster (see this post and this one). This is why MySQL supports now (since 8.0.14) a new consistency model to avoid such situation when needed. Nuno Carvalho and Aníbal Pinto already posted a blog series I highly encourage you to read: Group Replication – Consistency Levels … Read More


MySQL InnoDB Cluster – howto install it from scratch

MySQL InnoDB Cluster is evolving very nicely. I realized that the MySQL Shell also improved a lot and that it has never been so easy to setup a cluster on 3 new nodes. This is a video of the updated procedure on how to install MySQL InnoDB Cluster on GNU Linux rpm based (Oracle Linux, RedHat, CentOS, Fedora, …)


pre-FOSDEM MySQL Day 2019 – slides

This event was just awesome. We got 110 participants ! Thank you everybody and also a big thank to the speakers. Here are the slides of all the sessions: MySQL Shell – A DevOps-engineer day with MySQL’s development and administration tool, Miguel Araújo MySQL Shell : the best DBA tool ? – How to use the MySQL Shell as a … Read More


How 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 cluster.


Group Replication: A member in “RECOVERING” state is part of the primary partition

If you are using MySQL InnoDB Cluster (Group Replication) with ProxySQL, you should be familiar with the 2 functions and 1 view required in SYS Schema that ProxySQL uses to see if a node is online, partitioned or not, and if it’s lagging or not (see link1 and link2). I received recently a very valuable contribution from Bruce DeFrang that … Read More


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