After reading thus far, you may have some questions on Tableau Server 10.5 upgrade. Here are some common questions you might be thinking of:
How has the configuration of Data Engine and File Store changed in 10.5?
In versions prior to 10.5, you selected Data Engine process to be installed on a node and File Store was installed automatically along with the Data Engine process. In 10.5, the configuration is reversed. You can select where to install File Store process, and the associated single instance of Data Engine process is installed on the node(s) where File Store is installed.
Since Data Engine is now automatically installed with other server components, on multi-node installations, how are the data engines used?
The instance of the Data Engine process installed on the node where File Store is also installed is used for querying data for view requests.
The instance of Data Engine installed on the node where Backgrounder is installed is used for extract creation and refreshes.
Data Server, VizQL Server, and the Application server (VizPortal) use the local instance of Data Engine to do cross-database joins and create shadow extracts.
In multi-node installation, this blog post described a use case about changes to views (e.g., nulls in the date field). Are there more such issues? Where can I find out more information about this?
After an extract has been upgraded, you might notice some changes to a view that uses the extract data source. This is because values in your extract can be computed differently in version 10.5. Changes can include fewer marks in the view, more null values when you inspect the summary data, or the view itself has a different shape. In some rare cases, the view might even be blank. These changes also apply to live connections to Excel, text, and Google Sheets file data. For more information about the type of changes you might see when interacting with extracts with this version of Tableau, see Changes to values and marks in the view.