I am receiving 'Tableau Database engine Error:4:SimpleDatabase::DropDatabase' when I am trying to extract data from a Cloudera source. Live connection works just fine. I tried to research on this error but did not find any relevant information about what is causing this issue. I am on 8.2 version. Let me know I should be providing any more information.
If you can upgrade, please do and then make sure you have the matching drivers for the version upgraded to. If this does not resolve the issue or you are unable to upgrade, please open a Tableau Support ticket at support.tableau.com