It is a database for when you read a lot and don't write too often; when a write might be pretty big but not frequent; when you don't want to write a database e

It is a database for when you read a lot and don't write too often; when a write might be pretty big but not frequent; when you don't want to write a database engine yourself (I.e. figure out what to write and when). And, especially, when corrupting the data would be a big problem. And it is especially good on copy-on-write filesystems, because it is CoW itself.