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After enabling tracing I'm getting this error: `{"log.level":"warn","@timestamp":"2022-06-02T16:23:26.596Z","log.logger":"cerbos.otel","message":"OpenTelemetry error","error":"starting span \"ExportMetrics\": unsupported sampler: 0x7df690"}` - any clue?

Hi Rasmus, I am not sure. However, perhaps <@U02874JL5D3> or <@U02D2JSV745> can help.

It's an annoying but harmless issue in the OpenTelemetry library. I haven't found a solution for it yet. You can safely ignore that log message.

Oh, right. Thanks <@U02874JL5D3>. I wasn't seeing any traces in Tempo, so I was wondering if it was related. I'll dig further :smile:

Excellent! We have only tested with Jaeger. Did you have to do anything special to send traces to Tempo?

Nope. Tempo supports a bunch of different formats, including Jager

That's all I had do to. Identical to Jaeger, but it's ingested in Tempo