We’ve just open-sourced Solid Cache, a new ActiveRecord::Cache::Store that we use in Basecamp and HEY. Solid Cache uses a SQL database as its cache store. We get a much larger cache at a fraction of the storage costs of memory caches like Redis or Memcached. For us, that’s a cache size of months rather than days. While memory access is many times faster than disk, it only accounts for a fraction o
![Solid Cache](https://cdn-ak-scissors.b.st-hatena.com/image/square/2ce3afee1ed59d0723a29f5bcfe3e81ba50290b9/height=288;version=1;width=512/https%3A%2F%2Fdev.37signals.com%2Fassets%2Fimages%2Fopengraph%2Fsolid-cache.png)