Struct MetricsSnapshot 

pub struct MetricsSnapshot {
    pub process_initiated: Vec<(Box<str>, u64)>,
    pub process_completed: Vec<(Box<str>, u64)>,
    pub validation_failed: Vec<(Box<str>, u64)>,
    pub outbox_delivery_attempts: Vec<(Box<str>, u64)>,
    pub deadline_fired: Vec<(Box<str>, u64)>,
    pub dead_letter_recorded: Vec<(Box<str>, u64)>,
}

A point-in-time snapshot of all EngineMetrics counters.

Obtained via EngineMetrics::snapshot(). All fields are Vec of (label, count) pairs sorted by label for deterministic Prometheus output.

The label field uses a "," separator for multi-label metrics (e.g. "gpke,accepted" for {family="gpke",result="accepted"}). The render_prometheus function splits them appropriately.

Fields

process_initiated: Vec<(Box<str>, u64)>

(family, count) pairs for makod_process_initiated_total.

process_completed: Vec<(Box<str>, u64)>

("family,result", count) pairs for makod_process_completed_total.

validation_failed: Vec<(Box<str>, u64)>

("message_type,release", count) pairs for makod_validation_failed_total.

outbox_delivery_attempts: Vec<(Box<str>, u64)>

(result, count) pairs for makod_outbox_delivery_attempts_total.

deadline_fired: Vec<(Box<str>, u64)>

(family, count) pairs for makod_deadline_fired_total.

dead_letter_recorded: Vec<(Box<str>, u64)>

(reason, count) pairs for makod_dead_letter_recorded_total.

Implementations

impl MetricsSnapshot

pub fn render_prometheus(&self) -> String

Render this snapshot to Prometheus text exposition format (v0.0.4).

The output follows the format:

# HELP <metric_name> <description>
# TYPE <metric_name> counter
<metric_name>{<labels>} <value>

Multi-label metrics use a "," separator in the internal label string, which is split into separate key="value" pairs in the output.

Trait Implementations

impl Clone for MetricsSnapshot

fn clone(&self) -> MetricsSnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetricsSnapshot

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

Formats the value using the given formatter.