1Solid Cable is a database-backed Action Cable adapter that keeps messages in a 2table and continously polls for updates. This makes it possible to drop the 3common dependency on Redis, if it isn't needed for any other purpose. Despite 4polling, the performance of Solid Cable is comparable to Redis in most 5situations. And in all circumstances, it makes it easier to deploy Rails when 6Redis is no longer a required dependency for Action Cable functionality. 7