Mastering Rust - Second Edition

Unstructured logging

The usual way to approach logging is the practice of logging events as plain strings and shoving any fields from required values into the log message by converting them into strings. This form of logging is called unstructured logging as the information in the log message doesn't have any predefined structure or order. Unstructured logging serves well for most use cases, but it has its downsides too.

After collecting log messages, a common use case with them is to be able search for them for a particular event at a later point in time. However, the retrieval of unstructured logs from a collection of logs can be a pain. The problem with unstructured log messages is that they don't have any predictable format and it becomes ...