GreptimeDB: A Deep Dive into Error Handling for Large Rust Projects

This GreptimeDB blog post delves into their error handling practices within large Rust projects. It details how they built a cheaper, more accurate error stack to replace system backtraces, how they organize errors in large projects, and how they present errors differently to logs and end-users. GreptimeDB leverages the snafu crate for error management and implements a "virtual user stack." This approach proves more efficient and memory-friendly than system backtraces, providing clearer, more understandable error messages for both developers and end-users.