Is MariaDB Supported by Confluence?
Platform Notice: Data Center - This article applies to Atlassian products on the Data Center platform.
Note that this knowledge base article was created for the Data Center version of the product. Data Center knowledge base articles for non-Data Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
MariaDB is not supported by Confluence. Confluence's internal code as well as third party plugins assume you are using a supported database.
We do not support MariaDB because we did not test our product with this type of database. Because of this, there might be several compatibility issues between Confluence and MariaDB, and a number of problems can occur when using MariaDB.
The term "unsupported" means that we may not be able to help you in troubleshooting issues within your instance should it presents any problem.
If you are interested in future MariaDB support for Confluence, please watch: CONFSERVER-29060 - Support for MariaDB
Resolution
Install a supported database