32 lines
2.1 KiB
Markdown
32 lines
2.1 KiB
Markdown
# Consistent sampling
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This component adds various Sampler implementations for consistent sampling as defined by
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https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/tracestate-probability-sampling.md
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and https://github.com/open-telemetry/opentelemetry-specification/pull/2047.
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* **ConsistentSampler**:
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abstract base class of all consistent sampler implementations below
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* **ConsistentAlwaysOffSampler**:
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see https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/tracestate-probability-sampling.md#always-off-sampler
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* **ConsistentAlwaysOnSampler**:
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see https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/tracestate-probability-sampling.md#always-on-consistent-probability-sampler
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* **ConsistentComposedAndSampler**:
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allows combining two consistent samplers and samples when both samplers would sample
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* **ConsistentComposedOrSampler**:
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allows combining two consistent sampler and samples when at least one of both samplers would sample,
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see https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/tracestate-probability-sampling.md#requirement-combine-multiple-consistent-probability-samplers-using-the-minimum-p-value
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* **ConsistentParentBasedSampler**:
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see https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/tracestate-probability-sampling.md#parentconsistentprobabilitybased-sampler
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* **ConsistentProbabilityBasedSampler**:
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see https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/tracestate-probability-sampling.md#consistentprobabilitybased-sampler
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* **ConsistentRateLimitingSampler**:
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a rate limiting sampler based on exponential smoothing that dynamically adjusts the sampling
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probability based on the estimated rate of spans occurring to satisfy a given rate of sampled spans
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## Component owners
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- [Otmar Ertl](https://github.com/oertl), Dynatrace
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- [Peter Findeisen](https://github.com/PeterF778), Cisco
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Learn more about component owners in [component_owners.yml](../.github/component_owners.yml).
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