There was a bold announcement during the MySQL Keynote at Oracle Open World. A new product that will mix up with the existing GA server, called MySQL InnoDB Cluster. This is an evolution of MySQL group replication, which has been in the labs for long time, and the MySQL shell, which was introduced as a side feature last April. The boldness I mentioned before is on account of wanting to add to a GA server something that was defined as release candidate despite never having been out of the labs. The product is interesting as it promises to be a quick and painless cluster deployment, with built-in high availability and scalability.

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In this blog post we will present a first look at the performance of Group Replication (GR), now that the RC is out. The goal is to provide some insight on the throughput, latency and scalability one can expect in a modern computing infrastructure, using GR in single- and multi-master configurations, but mostly focused on single-master.…

Hi all, it is time again to do another preview release of MySQL Group Replication, the plugin that brings multi-master update everywhere support to MySQL, like we described in the Hello World post.

We are very proud to present the eighth preview release of MySQL Group Replication plugin, based on MySQL Server 5.7.15.…

Yesterday I was in Paris to attend a OpenTech Meetup related to MySQL.

You can find below the two presentations I gave (Warning: in French).

Haute disponibilité my sql avec group réplication from Frédéric Descamps

MySQL 5.7 & JSON – Nouvelles opportunités pour les dévelopeurs from Frédéric Descamps

The audience was very interested and I got …

After having played with MySQL Group Replication and HAProxy, it’s time to show you how easy it’s to setup MySQL HA with ProxySQL.

ProxySQL is a high performance open source proxy for MySQL. It has many features that invite you to discover on proxysql.com and on github.

If you remember, I wrote in my last post that it is recommended to use Group Replication with only one WRITER group member. As it is the preferred architecture, I will show you how to achieve this using ProxySQL. With ProxySQL, you don’t need to have two different interfaces to split reads and writes.

In fact, when you use ProxySQL, you have a much larger amount of options to route your queries. In production, the smart DBA, will identify …

I recently had the pleasure of attending the first OpenStack Days East conference in NYC. This was the first OpenStack Days event that we’ve had on the East Coast of the US, but I hope that it’s the first of many!…

MySQL Group Replication is just one component of the upcoming MySQL HA Solution as Matt Lord explained it in his GR quick start guide. So while mysql-router is back to school to become smarter and learn how to take the right decision we can already use existing 3rd party solutions. To be honest, if people are already using a load balancer/proxy with MySQL asynchronous, semi-sync or other virtual synchronous solution and want to evaluate and migrate to MySQL’s native Group Replication, they might not migrate load balancer at the same time as they move to GR. Step-by-step migration, one component at the time is always recommended in complex architecture.

So in this post, I want to cover HAProxy and a dedicated health check  related to what might be the more common architecture. Matt already explained in his start guide how to use …

Vadim Tkachenko recently released  Docker images for Group Replication (thank you for that ).

As not everybody is already using Docker or just because having multiple choices is also nice (this is an OpenSource world isn’t it ?), I decided to share a Vagrant environment that you can use to evaluate Group Replication.

This environment provides also a module that can be used to deploy GR on any other environment managed by Puppet.

The repository is available on my github account: mysqlGR-vagrant

This is a quick demo on how to use it:

Tadam ! You have a MySQL Group of 3 members ready to use !

Hi all, here is a new post following the blog series on the last MySQLvGroup Replication labs release which already presented: 1) the new features; 2) most asked questions; 3) summary of behaviour and configuration changes; and 4) the performance improvements.…

As announced by Luis Soares on MySQL High Availability’s blog, a new labs version of Group Replication (GR) has been released for MySQL 5.7.14 !

Group Replication is the main component of the future MySQL HA solution. Even if with GR, it’s possible to write simultaneously on all the member of the group, GR doesn’t provide any write scaling. Indeed, if one member reached 100% of its write capabilities, adding writes to another member, won’t help as both will have to write their load AND the load from the other member: remember this is (virtual) synchronous replication, all writes happening on member A will happen on member B and on all other members of the group.

As you …