Otel.SDK.Metrics.Exemplar.Filter (otel v0.2.0)

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Exemplar filters determine whether a measurement should be considered for exemplar sampling.

Three built-in filters:

  • :always_on — sample all measurements
  • :always_off — never sample
  • :trace_based — sample only when the span is recording (default)

Summary

Types

t()

Functions

should_sample?(atom, ctx)

Types

t()

@type t() :: :always_on | :always_off | :trace_based

Functions

should_sample?(atom, ctx)

@spec should_sample?(filter :: t(), ctx :: Otel.API.Ctx.t()) :: boolean()