Struct Log

internal/telemetry/metrics.go:83–88

Log emits a structured log line for every metric call. Cheap and portable; production aggregators (Loki, CloudWatch, Datadog) can build counters and gauges from these directly. All lines share the [metrics] prefix so they're easy to filter. Format is key=value space-separated, which both jq and Spl

// Format is key=value space-separated, which both jq and Splunk parse
// natively.
type Log struct {
	// inflightPublisherLag is set by SetPublisherLag and emitted
	// every N calls (currently 60 — once a minute at the worker's
	// 1s poll cadence). Saves log volume.
	calls atomic.Int64
}

func NewLog() *Log { return &Log{} }