Which Tableau Server process would handle extract refresh and subscription tasks?

The Backgrounder process in Tableau Server is specifically designed to handle tasks that occur in the background, such as extract refreshes and subscription deliveries. When you create an extract that needs to be refreshed, or when users subscribe to views or dashboards, the Backgrounder is responsible for executing these operations without disrupting the user's immediate interaction with the server.

The extract refresh process involves collecting new data from the original data sources and updating the stored extracts so they provide the most current information for users. Similarly, for subscriptions, the Backgrounder sends out reports or updates at scheduled intervals, ensuring that users receive the latest data according to their preferences.

While the other processes serve essential functions—such as the Metrics Service tracking usage metrics, the File Store managing the storage of extracts and other files, and the Gateway handling user requests and serving the Tableau interface—they do not perform extract refreshes or manage subscriptions. This clarity highlights why the Backgrounder is the dedicated process for these specific tasks within Tableau Server.