What occurs when the VizQL Server process fails?

When the VizQL Server process fails, all view rendering ceases immediately because this server is fundamental to processing queries and generating visualizations. The VizQL Server is responsible for converting user interactions into queries that retrieve data from the data source, process that data, and then render visualizations based on the results. If this process encounters an error or fails completely, the system cannot generate or refresh the visual representations of data, leading to an immediate halt in rendering for all views that rely on it.

In this context, when the VizQL Server is down, there are no alternate paths or servers available that can take over the rendering tasks, which makes the rendering of all views stop entirely until the issue is resolved and the VizQL Server is restored. Therefore, the cascading effect of a VizQL Server failure is that it disrupts the ability to visualize data across the board, impacting all visual components.