Exemplar
Interfaces
- ExemplarFilter
- Determines whether an exemplar should be recorded for a metric measurement.
- ExemplarReservoir
- Stores a bounded collection of exemplars for metric aggregation.
Classes
- AlignedHistogramBucketExemplarReservoir
- Histogram-aligned reservoir keeping one exemplar per bucket.
- AlwaysOffExemplarFilter
- Never records exemplars.
- AlwaysOnExemplarFilter
- Records an exemplar when span context is available.
- SimpleFixedSizeExemplarReservoir
- Fixed-size reservoir using Algorithm R for uniform sampling.
- TraceBasedExemplarFilter
- Records an exemplar only when the span is sampled.