Module otel

Generated from cargo doc --no-deps -p nemo-relay-builtins -p nemo-relay-diagnostics -p nemo-relay-logging -p nemo-relay-plugin-host -p nemo-relay-codecs -p nemo-relay -p nemo-relay-runtime -p nemo-relay-model-pricing -p nemo-relay-resource-metrics -p nemo-relay-observability -p nemo-relay-adaptive -p nemo-relay-pii-redaction -p nemo-relay-ffi -p nemo-relay-types -p nemo-relay-plugin -p nemo-relay-worker-proto -p nemo-relay-worker.

OpenTelemetry subscriber support for NeMo Relay.

This crate adapts NeMo Relay lifecycle events into the selected full, gen_ai, or openinference OpenTelemetry trace projection. Scope start and end events open and close supported spans. Non-metric mark behavior is fixed by the selected projection; reserved metric-schema marks are not projected into traces.

The public API is intentionally small:

• OpenTelemetryConfig configures the OTLP exporter and resource metadata
• OpenTelemetrySubscriber exposes a NeMo Relay EventSubscriberFn and convenience register / deregister / force_flush / shutdown methods

Internal event processing remains crate-owned:

use nemo_relay_observability::otel::OtelEventProcessor;

Structs

• OpenTelemetryConfig: Configuration for an OpenTelemetry subscriber exporting to a collector.
• OpenTelemetryFileSinkConfig: Configuration for an OpenTelemetry subscriber writing OTLP to a local file.
• OpenTelemetrySubscriber: OpenTelemetry-backed NeMo Relay subscriber.
• OpenTelemetrySubscriberOptions: Options for constructing an OpenTelemetry subscriber from an existing tracer provider.
• OtlpFileSinkSettings: A local file destination for exported spans.

Enums

• OpenTelemetryError: Errors produced while configuring or operating the OpenTelemetry subscriber.
• OtlpFileSinkMode: Open mode used when a trace file sink creates its output file.
• OtlpTransport: Supported OTLP trace transports.

Constants

• DEFAULT_COMPLETED_SPAN_CONTEXT_TTL: Default period for attaching late marks to a completed scope’s trace span.

Functions

• default_otlp_file_sink_filename: Returns the default output filename for a trace file sink.

Type Aliases

• Result: Result type for the OpenTelemetry subscriber crate.