samlogg

Samlogg is an open-source logging framework designed to standardize structured logging in distributed software systems. The project provides a minimal core API for emitting log events and optional schema validation, with pluggable backends and transports to accommodate different environments.

Origin and scope: The project emerged to address inconsistent logging formats across microservices and to enable easier aggregation, search, and correlation of events. It is released under an open-source license and supports multiple programming languages through bindings and adapters.

Architecture and features: Samlogg centers on a logger that can attach contextual metadata such as service name, host, and tracing identifiers to each event. Logs are emitted as structured payloads and can be validated against a central schema registry. It provides serialization options (JSON, MessagePack), multiple backends (console, file, network sinks), and transport adapters. The framework emphasizes low overhead and compatibility with common observability stacks.

Adoption and governance: The project has a modest user base in small to medium deployments and a contributor community hosted on mainstream code-sharing platforms. Maintainers provide documentation and tutorials. Critics point to potential overhead for simple applications and competition from other logging frameworks.

See also: logging, structured logging, observability, distributed tracing.