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# support
s
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a
yes it does support sampling. Ideally it should be done at agent otel-collectors but can be done at signoz collectors also
@Quy Bui are you deploying in k8s or a single VM?
q
No, I am not deploying yet. May I know what is open source license of SigNoz?
It seems to be that SigNoz only supports head-based sampling (provided by OpenTelemetry). It does not support tail-based sampling
a
If you can set up tail-based sampling using OpenTelemetry, we can help you set up
spanmetricsprocessor
which calculates APM metrics before you sample the spans and hence the APM metrics will be correct as they will be based on 100% sampled data