Observability settings
Logging, metrics and OpenTelemetry export. Every table on these pages carries the wire name, the default the code uses, and the ORION_* override.
| Page | Holds |
|---|---|
| Logging and metrics settings | log level and format, enabling Prometheus metrics, and the dedicated unauthenticated metrics listener. |
| Tracing settings | OpenTelemetry span export, the OTLP endpoint, service name, sample rate and the debug profiling switch. |
Related
- Server configuration: every section, by what you are configuring.
- How settings are resolved: defaults, the file, and the environment.
- Production checklist: which settings to change before real traffic.
Last verified 14 September 2026