Struct JaegerRemoteSampler

pub struct JaegerRemoteSampler { /* private fields */ }

Available on crate feature trace only.

Sampler that fetches the sampling configuration from remotes.

It offers the following sampling strategies:

• Probabilistic, fetch a probability between [0.0, 1.0] from remotes and use it to sample traces. If the probability is 0.0, it will never sample traces. If the probability is 1.0, it will always sample traces.
• Rate limiting, ses a leaky bucket rate limiter to ensure that traces are sampled with a certain constant rate.
• Per Operations, instead of sampling all traces, it samples traces based on the span name. Only probabilistic sampling is supported at the moment.

User can build a JaegerRemoteSampler by getting a JaegerRemoteSamplerBuilder from Sampler::jaeger_remote.

Note that the backend doesn’t need to be Jaeger so long as it supports jaeger remote sampling protocol.

Trait Implementations

impl Clone for JaegerRemoteSampler

fn clone(&self) -> JaegerRemoteSampler

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for JaegerRemoteSampler

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl ShouldSample for JaegerRemoteSampler

fn should_sample( &self, parent_context: Option<&Context>, trace_id: TraceId, name: &str, span_kind: &SpanKind, attributes: &[KeyValue], links: &[Link], ) -> SamplingResult

Returns the SamplingDecision for a Span to be created.