Tracking Application-Level Consistency with LiteFS

Fly.io introduces LiteFS Cloud, a managed backup and point-in-time restore solution for LiteFS. The LiteFS project aimed to make distributed SQLite easy to use but faced challenges in maintaining consistent views from the application's perspective. To address this issue, Fly.io developed an HTTP proxy that intercepts incoming client requests and redirects them to the primary node for writes or a replica for reads. This approach allows developers to focus on their applications without managing low-level details of LiteFS replication. The LiteFS proxy also provides health checks and can be configured using Fly.io's Getting Started guide and Built-in HTTP Proxy documentation.