feat: Expand supported OTEL metrics#597
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tanderson-ld
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Mar 19, 2026
keelerm84
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Apr 3, 2026
Replaces the opencensus metrics implementation with opentelemetry, removes the deprecated "new connections" usage metric, and expands the supported OTEL metric instruments. Includes: - chore: Set next release as rc.1 (#578) - feat!: Switch opencensus for opentelemetry (#583) - feat: Remove "new connections" usage metric (#595) - chore: Clean up doc (#596) - feat: Expand supported OTEL metrics (#597)
keelerm84
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Apr 6, 2026
Replaces the opencensus metrics implementation with opentelemetry, removes the deprecated "new connections" usage metric, and expands the supported OTEL metric instruments. Includes: - chore: Set next release as rc.1 (#578) - feat!: Switch opencensus for opentelemetry (#583) - feat: Remove "new connections" usage metric (#595) - chore: Clean up doc (#596) - feat: Expand supported OTEL metrics (#597)
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BEGIN_COMMIT_OVERRIDE
feat: Track request durations
feat: Track ingested event bytes usage
feat: Add go runtime metrics
feat: Add application tags and instance id dimensions to metrics
END_COMMIT_OVERRIDE
Note
Medium Risk
Adds new middleware-based instrumentation and expands metric dimensions across all request paths, which can affect metric cardinality and performance. Also bumps the Go toolchain and OpenTelemetry dependencies, which may introduce compatibility/behavior changes at runtime.
Overview
Expands OTLP metrics coverage by adding
launchdarkly.relay.request.duration(histogram) andlaunchdarkly.relay.events.ingested.bytes(counter), and wiring them into the main request and events ingestion routes.Enriches metric attributes by standardizing per-request metadata into
RequestInfoand addingroute,method,application.id,application.version, andinstanceIddimensions; route sanitization now preserves slashes.Upgrades telemetry/runtime plumbing by bumping to Go
1.25, updatinggo.opentelemetry.io/oteltov1.42.0, starting Go runtime metrics collection viaotel/contrib, and updating docs to reflect the new metrics and Prometheus name mapping.Written by Cursor Bugbot for commit 707ad61. This will update automatically on new commits. Configure here.