lefred's blog


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preFOSDEM 2020 MySQL Days: the schedule

The schedule of the preFOSDEM Day is now available ! We had a lot of proposals to deal with. Also this is a MySQL event where we, the MySQL Team has the possibility to show to you, our Community, all what we have working on to improve MySQL but also new stuff. We also invite some of our friends from … Read More


MySQL GTID: restore a master from a replica’s backup

To avoid infinite replication loops MySQL doesn’t allow you to have log_slave_updates and replicate-same-server-id. When using GTIDs that may lead to something not expected that you may not be aware of. In this scenario, we have 2 MySQL servers using GTID. The sever uuid part of the GTID has been modified in the illustration to make it more clear. Both … Read More


Setup 2 MySQL InnoDB Clusters on 2 DCs and link them for DR

This article is an update of a previous post explaining how to setup a second cluster on a second data center to be used as disaster recovery (or to run some off site queries, like long reports, etc..). This new article covers also the CLONE plugin. Before you ask, CLONE plugin and Replication Channel Based Filters are only available in … Read More


Join the Code ONE MySQL Track at Oracle Open World in San Francisco

Mid September, MySQL Community, MySQL Customers and MySQL Engineers will be in San Francisco to share their experience and present the new features of your favorite database ! The event will be held in Moscone South (just Mirko Ortensi‘s Hands-on Lab will be delivered in Moscone West). During the week, the MySQL Community Team will host the traditional MySQL Reception. … Read More


Migrate from a single MySQL Instance to MySQL InnoDB Cluster using CLONE plugin

When somebody wants to migrate from a single MySQL instance to a full HA solution using MySQL InnoDB Cluster, the best solution to reduce the downtime is to use asynchronous replication and switch database only once at a certain point in time when everything is ready. This is almost what I explained already in this post. The most difficult part … Read More


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