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MaxScale by MariaDB Corporation

The MariaDB Corporation MaxScale is an intelligent proxy that allows forwarding of database statements to one or more database servers using complex rules, a semantic understanding of the database statements and the roles of the various servers within the backend cluster of databases.

MaxScale is designed to provide load balancing and high availability functionality transparently to the applications. In addition it provides a highly scalable and flexible architecture, with plugin components to support different protocols and routing decisions.

For a detailed overview of what MaxScale can do, read the MaxScale page on the MariaDB website.

An Google Group exists for MaxScale that can be used to discuss ideas, issues and communicate with the MaxScale community.

The MariaDB Zulip instance can also be used to contact the MariaDB MaxScale developers.

Please report all feature requests, improvements and bugs in the MariaDB Jira.

Getting Started

Read the Documentation Overview for a list of all MaxScale documents.


The official documentation can be found on the MariaDB Knowledge Base.

A MaxScale Troubleshooting Guide can be found on the MariaDB Knowledgebase. It answers common questions encountered when installing and using MaxScale.

The documentation can also be found in the Documentation directory of the source tree.

Contributing Code

Read the Contributing page on the wiki for more information on how to do pull request and where to do them.


MariaDB MaxScale is licensed under the Business Source License. For the full details of the license, refer to the LICENSEXXXX.TXT in the folder licenses

The following is a table of the BSL change dates.

Version Change Date
21.06 2024-06-03
22.08 2025-09-12
23.02 2026-03-20
23.08 2026-09-21
24.02 2027-04-10