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  • MariaDB – Continuous Availability

    Is it possible to have continuous availability in your data layer? It is critical to almost every organisation that their data is available and serves the needs of the business and customers at every moment of every day. The 9’s of Uptime Many people claim they have five 9’s of uptime and then a few…

  • MariaDB MaxScale - Replica Rebuild – Part 1

    Part 1  –  Install MaxScale This multi-part series breaks down each section into easy logical steps. MaxScale MaxScale is a fantastic product produced by MariaDB, which has, over time, been developed into a must-have tool for anyone running MariaDB. It is unfair to think of it as ‘just’ a database proxy as it brings with…

  • MariaDB MaxScale – High Availability – Part 1

    MaxScale is a fantastic tool to bring high availability to your database layer, but, it is also important to make sure your MaxScale server is not a Single Point of Failure (spof). To protect against this, you can run two, or more MaxScale servers and configure your application to connect to them both without the need…

  • MariaDB MaxScale - Replica Rebuild – Part 5

    Part 5  – Configure MaxScale This multi-part series breaks down each section into easy logical steps. If you have not completed part 1, start here. MaxScale Configuration To configure MaxScale various parts need to be completed. We will be using the MaxScale Config Sync to save the configuration within our database. This is a good…

  • MariaDB MaxScale - Replica Rebuild – Part 8

    Part 8 – Sysbench Test This multi-part series breaks down each section into easy logical steps. If you have not completed part 1, start here. Sysbench Sysbench is a great tool for testing various parts of a system, one of the tests is a MySQL driver that allows us to test our MariaDB installation. We…

  • MariaDB MaxScale -Replica Rebuild – Part 3

    Part 3  – Create MaxScale Database Users This multi-part series breaks down each section into easy logical steps. If you have not completed part 1, start here. Creation of Database Users for MaxScale On one database server only, we will use ‘Server 1’, you will need to create some database users that will be used by…

  • MariaDB MaxScale -Replica Rebuild – Part 9

    Part 9  –  Live connection tests This multi-part series breaks down each section into easy logical steps. If you have not completed part 1, start here. Failover tests Whilst this mini-series is about rebuilding replicas automatically with MaxScale, it also brings some amazing protection against failure of your database servers or the ability for you…

  • MariaDB Python Application

    In this blog, we are going to prepare a basic Linux server, with a Python Script to test connectivity to a MariaDB Database Server. The following steps are completed on a Rocky Linux 9 server but should work on most other flavours of Linux for example CentOS 7/8/9.

  • MariaDB Python Connector

    If you are new to Python or are struggling to find a complete step-by-step guide as to how to use the MariaDB Python Connector on Linux, then the following should take you from nothing to installation.

  • MariaDB Upgrade – Using the Diff Router – Part 1

    Upgrade MariaDB with Confidence: Introduction to the Diff Router An essential first step in a multi-part series, MariaDB Upgrade – Using the Diff Router – Part 1 covers what you need to know before beginning your upgrade. This guide empowers database administrators and DevOps engineers to confidently plan a MariaDB upgrade—emphasising: Why upgrades matter: deliver latest…

  • MariaDB Upgrade – Using the Diff Router – Part 2

    MariaDB Diff‑Router Upgrade: In‑Depth Part 2 Dive deeper into seamless MariaDB upgrades with Part 2 of using the Diff‑router. Learn how to: Execute comprehensive comparisons between main and upgraded servers using latency histograms, EXPLAIN diagnostics, QPS monitoring, and checksum validation. Prepare directory-based reporting, visualize results via maxvisualize, and continuously log discrepancies. Manage Diff lifecycle with create, start,…

  • MariaDB Upgrade – Using the Diff Router – Part 3

    MariaDB Diff‑Router Upgrade: Configuration – Part 3 In Part 3 of the series, learn how to configure MaxScale’s Diff Router to compare your legacy and upgraded MariaDB servers efficiently. This installment covers: MaxScale service adjustments: editing [service], [listener], and [router] sections to support diff routing. Server definitions: adding both the old (main) and new (other) MariaDB servers…

  • MariaDB Upgrade – Using the Diff Router – Part 4

    Part 4  –  Using the Diff Router This multipart series breaks down each section into easy logical steps. Now that you have the Diff Router ready to be used, we need to have a load on our system, the idea is that this is your standard production load, however, for the purposes of this blog…