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Code Issues Releases Activity

Add AlwaysParentSample sampler (#455)

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* Add AlwaysParentSample

* Update sampler doc

Co-Authored-By: Krzesimir Nowak <qdlacz@gmail.com>

* Address PR comments

Co-authored-by: Krzesimir Nowak <qdlacz@gmail.com>
Co-authored-by: Rahul Patel <rghetia@yahoo.com>
This commit is contained in:
Amr Hanafi
2020-02-03 10:22:52 -08:00
committed by GitHub
parent 32489ddae9
commit 6051c81493
2 changed files with 57 additions and 0 deletions
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8
sdk/trace/sampling.go
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@ -77,3 +77,11 @@ func NeverSample() Sampler {
return SamplingDecision{Sample: false}
}
}
// AlwaysParentSample returns a Sampler that samples a trace only
// if the parent span is sampled.
// This Sampler is a passthrough to the ProbabilitySampler with
// a fraction of value 0.
func AlwaysParentSample() Sampler {
return ProbabilitySampler(0)
}