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Howto make MySQL point-in-time recovery faster ?

Before explaining how you can improve the speed for performing point-in-time recovery, let’s recall what is Point-In-Time Recovery and how it’s usually performed. Point-in-Time Recovery, PTR Point-In-Time recovery is a technique of restoring your data until a certain point (usually until an event that you would like that has never happened). For example, a user did a mistake and you … Read More


MySQL Group Replication and logical backup

Taking a logical backup of a member of a Group Replication Cluster is not something very easy. Currently (5.7.17, 5.7.18 or 8.0.0) if you want to use mysqldump to take a logical backup of your dataset, you need to lock all the tables on the member you are taking the dump. Indeed, a single transaction can’t be used as savepoints … Read More


MySQL Group Replication: native support in ProxySQL

ProxySQL is the leader in proxy and load balancing solution for MySQL. It has great features like query caching, multiplexing, mirroring, read/write splitting, routing, etc… The latest enhancement in ProxySQL is the native support of MySQL Group Replication. No more need to use an external script within the scheduler like I explained in this previous post. This implementation supports Groups … Read More


MySQL Group Replication: who is the primary master ??

As you know, MySQL Group Replication runs by default in single primary mode. mysql2 mysql> show global variables like ‘group_replication_single_primary_mode’; +—————————————+——-+ | Variable_name | Value | +—————————————+——-+ | group_replication_single_primary_mode | ON | +—————————————+——-+ But how can we easily find which member of the group is the Primary-Master ? Of course you could check which one is not in read_only: mysql2 … Read More


Jeudis du Libre – Mons

Yesterday I was invited to speak at the “Jeudis du Libre” in Mons. The location was very special as it was in one auditorium of Polytech, the oldest university in the city of Mons. I presented in French two very hot topics in the MySQL ecosystem: MySQL InnoDB Cluster MySQL as Document Store with JSON datatype & X plugin Those … Read More


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