Backgrounder job queue management is configured by two new keys: backgrounder.enable_sort_jobs_by_job_rank and backgrounder.enable_task_run_time_and_job_rank since 2019.1. These settings are enabled in 2019.3 and no longer user configurable.
The configuration key backgrounder.sort_jobs_by_run_time_history_observable_hours has been deprecated (ignored by Tableau Server) since version 2018.2. The configuration key was removed completely in 2019.3.
Thank you for providing your feedback on the effectiveness of the article.