Struct MetricCardinalityGuard 

pub struct MetricCardinalityGuard { /* private fields */ }

Enforces the per-family label-cardinality and name-allowlist budgets.

Implementations

impl MetricCardinalityGuard

pub fn new( job_names: impl IntoIterator<Item = JobName>, step_names: impl IntoIterator<Item = StepName>, ) -> Result<Self, MetricConfigurationError>

Configures explicit job and step name allowlists.

Errors

Rejects either allowlist when it contains more than 50 names.

pub fn observe( &mut self, family: MetricFamily, dimensions: &MetricDimensions, ) -> MetricObservation

Applies the declared family label set and finite series budget.

pub fn dropped_cardinality(&self, family: MetricFamily) -> u64

Returns the count of combinations mapped to the reserved series.

pub fn series_count(&self, family: MetricFamily) -> usize

Returns the currently retained series count for one family.

Trait Implementations

impl Debug for MetricCardinalityGuard

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

Formats the value using the given formatter.

impl Default for MetricCardinalityGuard

fn default() -> MetricCardinalityGuard

Returns the “default value” for a type.