Why does this error occur: unnknown table 'AO_' in information_schema?

Question

After new Confluence installation (v 6.4.3) and initial setup there are errors in atlassian-confluence.log:
{{
Caused by: java.sql.SQLSyntaxErrorException: Unknown table 'AO_6384AB_DISCOVERED' in information_schema
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:536)
}}

What's going wrong?

Environment:
OS = Debian
Database = MySQL Ver 10.1.26-MariaDB-0+deb9u1 for debian-linux-gnu on x86_64 (Debian 9.1)
JDBC-Treiber = mysql-connector-java-6.0.5.jar

Application is not running correctly - *cannot be used* !

Marek Parfianowicz · Answer

Also, please check your MySQL JDBC Driver version. The ActiveObjects library has compatibility problem with the latest Connector/J 8.0.x version of the driver. JDBC driver downgrade to 5.1.x may help.

You can find more details here: https://ecosystem.atlassian.net/browse/AO-3462

Shannon S · Answer

Hi Torsten

MariaDB is not supported by Confluence. You can watch and vote on this request if it's something you would like to see in the future:

* CONFSERVER-29060

You'll want to make sure you're running on all Supported Platforms before we can proceed.

Let us know if you have any questions.

Kind Regards,
Shannon