As we have found out, when the user runs a PBI report connected to SSAS and gradually clicks on different slicers or tabs of the report, new queries are continuously launched, without cancelling the previously started ones. A user can select slicers asynchronously without waiting for previous actions/queries to be completed, and continously start new and new queries. When new slicers are selected, this should cancel the previously started queries (because parameters have meanwhile changed and they are no more relevant), however they continue running. Even one user can easily "kill" the server by such clicking on slicers and tabs, not even talking about tens or even hundreds of users.
After a while, this leads to an enormous amount of queries running at the same time, consuming a lot of server resources and effectively blocking the server to process new queries. This becomes a huge problem especially when more users are running PBI reports at the same time.
Any recommendations to solve this problem?
Thank you very much for your help and support!