Atlassian does not yet officially support MariaDB as a database for JIRA although some installations already use MariaDB Server as the database for JIRA. There is also demand being built up for official support of MariaDB Server for JIRA. Check out the request(s) about it in Atlassian’s own JIRA. The “Support for MariaDB” request is found here. If you think it’s important you can vote and comment on that issue to give it some more attention.
For the tracking of the MariaDB development project itself we of course wanted to use MariaDB as the database beneath JIRA.
jira.mariadb.org has been up and running for a week now with MariaDB Server 10.1.12 as the database server and MariaDB’s Java Connector as the database driver. The setup has been very successful so far, i.e. we haven’t experienced any problems. Below are a few instructions on how to use MariaDB as the database server for JIRA.