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Frequent Visitor

Mariadb connector in on permise Gateway

I've created report with Mariadb live connection, published to Powerbi online (Pro license). How should I setup datasource for on permise Gateway (October 2020 update)? I'm trying to add new datasource to Gateway, but there are no Mariadb connector in list, only Mysql and report is not working, message:

To use a data gateway, make sure the computer is online and the data source is added in Manage Gateways. If you're using an On-premises data gateway (standard mode), please select the corresponding data sources and then click apply.

Advocate IV
Advocate IV

Hi Artex,

I've just set this up and in order to add the data source to the gateway you need to install the mariadb ODBC & connector and copy the .mez file from the connector installation to wherever your gateway looks for custom connectors.

"C:\Users\PBIEgwService\Documents\Power BI Desktop\Custom Connectors"

Then restart the gateway and you should now be able to add this data source.



Frequent Visitor

Hi, thanks for the hint, I've tried to reproduce, but unable to find .mez file. As I understand .mez it is PBI connector file and I should search the file on my desktop computer with PBI desktop. I found 3 files at

C:\Users\myuser\Microsoft\Power BI Desktop Store App\CertifiedExtensions


is it wrong location?


and second issue - unable to install latest driver version (MariaDB Connector/ODBC 3.1.10 ) on gateway server with old windows 2008. managed to install 3.0.9 version.

Community Support
Community Support

Hi @Artex ,


Please kindly refer to this post:


I think you may try ODBC Data Source Type to connect you Mariadb.




Best Regards,

Stephen Tao


If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

ODBC Data Source is useless, it does not support live/direct connections.

I can use Mysql Data Source to use mariadb database in Import mode, but Import mode limiting refresh count. Powerbi October 2020 update added Mariadb with live connection support, but I do not understand how the Maridb connector should be used. Maybe Maridb connector support in Gateway will come later ?

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