Enum TracesSamplingStrategy 

#[non_exhaustive]
pub enum TracesSamplingStrategy {
    FixedRate(f32),
    Function(Arc<dyn Fn(&TransactionContext) -> f32 + Send + Sync>),
    Disabled,
}

Defines how traces should be sampled.

Leaving this at Disabled is distinct from explicitly configuring FixedRate with a rate of 0.0. Both disable local transaction sampling when there is no parent sampling decision, but an explicit fixed-rate strategy can still honor an inherited sampling decision.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

FixedRate(f32)

Sample the trace at a fixed sample rate. The rate should be between 0.0 and 1.0, inclusive.

Function(Arc<dyn Fn(&TransactionContext) -> f32 + Send + Sync>)

Sample the traces using a TracesSampler function.

Disabled

Disable tracing.

Trait Implementations

impl Clone for TracesSamplingStrategy

fn clone(&self) -> TracesSamplingStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TracesSamplingStrategy

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

Formats the value using the given formatter.

impl Default for TracesSamplingStrategy

fn default() -> TracesSamplingStrategy

Returns the “default value” for a type.