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194 blog posts in 13 categories

MySQL Replication failover: Maxscale vs MHA (part 3)

This post describes how you can implement automated failover with MariaDB using Maxscale and MHA and compares the two with each other.

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MySQL Replication failover: Maxscale vs MHA (part 2)

This post describes how you can implement automated failover with MariaDB using Maxscale and MariaDB Replication Manager.

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MySQL Replication failover: Maxscale vs MHA (part 1)

This post describes how you can implement automated failover with MariaDB MHA.

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ClusterControl 1.2.12 - The Full Monty Release for MySQL, MariaDB, MongoDB & PostgreSQL

Release of ClusterControl 1.2.12 with key new features, such as support for the latest versions of MySQL, MariaDB, MongoDB & PostgreSQL, operational reports and enhanced backup options, along with performance improvements and bug fixes.

Understanding the MySQL Galera Cluster and MariaDB Cluster Diagnostic Logs

In a Galera cluster, whether you use MariaDB Cluster, Percona XtraDB Cluster or the Codership build, the MySQL error log is even more important. It gives you the same information as MySQL would, but you’ll also find in it information about Galera internals and replication. This data is crucial to understand the state of your cluster and to identify any issues which may impact the cluster’s ability to operate. In this post, we’ll try to make the Galera error log easier to understand.

Webinar Replay: Deploying MongoDB, MySQL, PostgreSQL & MariaDB’s MaxScale in 40min

Thanks to everyone who joined us for our recent live webinar on ‘ClusterControl 1.2.11 - new release’ led by Art van Scheppingen , Senior Support Engineer at Severalnines. The replay and slides to the webinar are now available to watch and read online.

How to Deploy and Manage MaxScale Using ClusterControl

We were delighted to announce that ClusterControl now supports MaxScale, the intelligent database gateway from the MariaDB team. In this blog, we will show you how to deploy and manage MaxScale from ClusterControl. We previously blogged about MaxScale, read it if you’d like a quick overview and introduction. We also published a quick benchmark of HAProxy vs MaxScale.

How to Preform an Online Upgrade of MariaDB Galera Cluster 5.5 to MariaDB 10

In this blog post, we’ll look into how to perform an online upgrade to MariaDB Galera Cluster 10. At the time of writing, MariaDB 10.1 was still in beta so the instructions in this blog are applicable to MariaDB 10.0. If you are running the Codership build of Galera (Galera Cluster for MySQL), you might be interested in the online upgrade to MySQL 5.6 instead.

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SQL Load Balancing Benchmark - Comparing Performance of MaxScale vs HAProxy

In a previous post, we gave you a quick overview of the MaxScale load balancer and walked through installation and configuration. We did some quick benchmarks using sysbench, a system performance benchmark that supports testing CPU, memory, IO, mutex and also MySQL performance. We will be sharing the results in this blog post.

How to Deploy and Configure MaxScale for SQL Load Balancing with Read-Write Split

There are two models of load balancing: transport and application layer. HAProxy is a great TCP load balancer, but it’s lack of SQL awareness effectively limits its ability to address certain scaling issues in distributed database environments. In the open source world, there’s been a few SQL-aware load balancers, namely MySQL Proxy, ProxySQL and MaxScale, but they all seemed to be in beta status and unfit for production use. So we were pretty excited when the MariaDB team released a GA version of MaxScale earlier this year. In this blog, we’ll have a look at MaxScale and see how it compares with HAProxy.