Struct Metrics 

pub struct Metrics { /* private fields */ }

Live, lock-free counters a proxy increments as it serves data-plane requests. Cheap enough to update on every request (three relaxed atomic adds); the snapshot is taken on demand when an agent scrapes.

Implementations

impl Metrics

pub fn new() -> Self

A fresh zeroed collector.

pub fn record(&self, ok: bool)

Records one completed data-plane request and whether it succeeded (a 2xx response). Introspection requests (/debug/*, /metrics) are not counted, this measures the proxy’s actual proxying.

pub fn snapshot(&self, pools: Vec<PoolSnapshot>) -> StatsSnapshot

Builds a serializable snapshot from the current counters and the supplied per-cluster pool readout (gathered by the caller, which owns the sink).

Trait Implementations

impl Debug for Metrics

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

Formats the value using the given formatter.

impl Default for Metrics

fn default() -> Metrics

Returns the “default value” for a type.