Release Notes for MariaDB MaxScale 2.5.23

Overview

MariaDB MaxScale is an advanced database proxy, firewall, and query router.

MariaDB MaxScale 2.5.23 was released on 2022-11-28. This release is of General Availability (GA) maturity.

Issues Fixed

Can result in unexpected behavior

  • In binary packages, librdkafka is built without SASL support enabled, which impacts the Kafka CDC Router (kafkacdc) and the Kafka Importer Router (kafkaimporter). (MXS-4348)

  • When smartrouter cancels a query, it can cancel the wrong query. (MXS-4317)

    • In previous releases, if smartrouter executed two different canonical forms of the same query on the same server, the router could cancel the wrong one using KILL QUERY, which could cause the client to receive an error with the ER_QUERY_INTERRUPTED error code:

      Query execution was interrupted

    • Starting with this release, smartrouter tracks the completion of its KILL QUERY operations and prevents new queries from being executed while a cancellation is pending.

Platforms

In alignment to the MariaDB Corporation Engineering Policy, MariaDB MaxScale 2.5.23 is provided for:

  • CentOS 7 (x86_64)

  • Debian 9 (x86_64, ARM64)

  • Debian 10 (x86_64, ARM64)

  • Debian 11 (x86_64, ARM64)

  • Red Hat Enterprise Linux 7 (x86_64)

  • Red Hat Enterprise Linux 8 (x86_64, ARM64)

  • Red Hat Enterprise Linux 9 (x86_64, ARM64)

  • Rocky Linux 8 (x86_64, ARM64)

  • Rocky Linux 9 (x86_64, ARM64)

  • SUSE Linux Enterprise Server 15 (x86_64, ARM64)

  • Ubuntu 18.04 (x86_64, ARM64)

  • Ubuntu 20.04 (x86_64, ARM64)