Backend verification¶

This page records retrieval proof from the configured Grafana Cloud backends. It is deliberately separate from exporter configuration: a configured exporter or a successful write does not prove that data can be queried back.

Traces¶

On 2026-08-12, a 24-hour Tempo search for resource.service.name = "polylens2otel" returned this trace:

{
  "traceID": "5699f6f660f2df338bbeb3b21dfc638c",
  "rootServiceName": "polylens2otel",
  "rootTraceName": "collector.phone.lines",
  "durationMs": 3829
}

Fetching that trace by ID returned service.version 0.1.0, one collector.phone.lines parent span, and twelve http.client.request child spans. This proves an emitted trace was stored and retrieved; it is not inferred from exporter logs.

Profiles¶

On 2026-08-12, a 24-hour Pyroscope query for {service_name="polylens2otel"} and profile type process_cpu:cpu:nanoseconds:cpu:nanoseconds returned a non-empty flame graph:

{
  "total": "27980000000",
  "maxSelf": "5650000000"
}

The returned frames included github.com/rknightion/polylens2otel/internal/collector.(*Scheduler).loop and github.com/grafana/pyroscope-go.(*Session).takeSnapshots. A profile exemplar for the same selector reported service_name=polylens2otel and Go runtime go1.26.5. This proves a profile was stored and queried back.