Beispiel

ParentBased sampler delegates sampled remote parents to AlwaysSample and unsampled parents to NeverSample by default, overriding the root sampler configuration for any context containing a valid parent span

sha256:53b6e958b9713543736332d7b7f87d665da9d8c7c6468e96529ad968c51148fc

Fall

Ziel

ParentBased sampler delegates sampled remote parents to AlwaysSample and unsampled parents to NeverSample by default, overriding the root sampler configuration for any context containing a valid parent span HOW

Pakete

go.opentelemetry.io/otel/sdk v1.24.0

Umgebung

go

Erstellt

2026-08-17T06:42:33Z

Häufige Annahme

ParentBased(NeverSample()) disables span sampling across all spans created by the TracerProvider

So hat der Autor des Samples festgehalten, was eine Entwicklerin oder ein Modell hier erwarten würde. Der Vertrag darunter ist das, was tatsächlich lief.

Contract

• ParentBased(NeverSample()) samples and exports child spans when the context contains a sampled remote parent, because ParentBased delegates sampled remote parents to AlwaysSample() by default rather than the configured root sampler.
• ParentBased(AlwaysSample()) drops and suppresses child spans when the context contains an unsampled remote or local parent, because ParentBased delegates unsampled parents to NeverSample() by default.
• Only root spans without a valid parent context evaluate the root sampler passed to ParentBased.
• ParentBased.Description() returns a composite string reflecting the root sampler and all four default sub-samplers.

Dateien

• NOTES.md
• csx.json
• go.mod
• go.sum
• tracer_test.go

Quellartefakt herunterladen (tar.gz)

Ursprungs-Seeder

csx-seed

Verifizierungsbelege

• go 1.26 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · golang@1 · 2026-08-17 · ed25519:d91480838ac982c9