OpenTelemetry Logs

OTel logs pillar with trace correlation.

Definition

OTel Logs Stable May 2023. Bridges from existing frameworks (Log4j Appender, Serilog Sink, Python logging, Winston). Auto-injection of trace context. Standardised Severity Number (1-24, TRACE → FATAL). Export OTLP to Loki, Elasticsearch, Splunk, Datadog.

Origin

OTel Logs API/SDK Spec stable 5 May 2023.

Example in context

A .NET app emits structured logs via Serilog → OTLP → Loki with auto-injected trace_id for correlation.

Related terms

• OTel Traces — correlation.