Alexander
27b647e9b4
Window token counts are now computed in Grafana using the @ modifier with dashboard variables derived from proxy_usage_resets_at. This eliminates in-memory state, file persistence, and restart sensitivity. Removes: TokensIn/Out, RecordTokens, setResetTime, persist.go, window_tokens observable gauges. -171 lines.
86 lines
3.0 KiB
Go
86 lines
3.0 KiB
Go
package telemetry
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import (
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"context"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/metric"
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"github.com/fujin/anthropic-proxy/internal/ratelimit"
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)
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var (
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RequestCounter metric.Int64Counter
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RequestDuration metric.Float64Histogram
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RequestBodySize metric.Int64Histogram
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UpstreamErrors metric.Int64Counter
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TokensInput metric.Int64Counter
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TokensOutput metric.Int64Counter
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CredentialCooldowns metric.Int64Counter
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ActiveCredentials metric.Int64UpDownCounter
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StreamRequests metric.Int64Counter
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)
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// InitMetrics creates all metric instruments from the given meter.
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// If tracker is non-nil, registers observable gauges for per-window usage.
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func InitMetrics(meter metric.Meter, tracker *ratelimit.Tracker) {
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RequestCounter, _ = meter.Int64Counter("proxy.request.count",
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metric.WithDescription("Total proxy requests"),
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)
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RequestDuration, _ = meter.Float64Histogram("proxy.request.duration_ms",
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metric.WithDescription("Request latency in milliseconds"),
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metric.WithUnit("ms"),
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)
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RequestBodySize, _ = meter.Int64Histogram("proxy.request.body_size_bytes",
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metric.WithDescription("Request body size in bytes"),
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metric.WithUnit("By"),
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)
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UpstreamErrors, _ = meter.Int64Counter("proxy.upstream.errors",
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metric.WithDescription("Upstream error count"),
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)
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TokensInput, _ = meter.Int64Counter("proxy.tokens.input",
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metric.WithDescription("Input tokens consumed"),
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)
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TokensOutput, _ = meter.Int64Counter("proxy.tokens.output",
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metric.WithDescription("Output tokens consumed"),
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)
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CredentialCooldowns, _ = meter.Int64Counter("proxy.credential.cooldowns",
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metric.WithDescription("Credential cooldown activations"),
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)
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ActiveCredentials, _ = meter.Int64UpDownCounter("proxy.credential.active",
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metric.WithDescription("Currently active (non-cooldown) credentials"),
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)
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StreamRequests, _ = meter.Int64Counter("proxy.stream.requests",
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metric.WithDescription("Streaming request count"),
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)
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if tracker == nil {
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return
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}
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attr5h := attribute.String("window", "5h")
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attr7d := attribute.String("window", "7d")
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attrSonnet := attribute.String("window", "7d_sonnet")
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meter.Float64ObservableGauge("proxy.usage.utilization",
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metric.WithDescription("Current utilization % from API"),
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metric.WithFloat64Callback(func(_ context.Context, o metric.Float64Observer) error {
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o.Observe(tracker.FiveHour().Utilization, metric.WithAttributes(attr5h))
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o.Observe(tracker.SevenDay().Utilization, metric.WithAttributes(attr7d))
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o.Observe(tracker.Sonnet().Utilization, metric.WithAttributes(attrSonnet))
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return nil
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}),
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)
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meter.Int64ObservableGauge("proxy.usage.resets_at",
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metric.WithDescription("Unix seconds when window resets"),
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metric.WithInt64Callback(func(_ context.Context, o metric.Int64Observer) error {
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o.Observe(tracker.FiveHour().ResetsAt.Unix(), metric.WithAttributes(attr5h))
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o.Observe(tracker.SevenDay().ResetsAt.Unix(), metric.WithAttributes(attr7d))
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o.Observe(tracker.Sonnet().ResetsAt.Unix(), metric.WithAttributes(attrSonnet))
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return nil
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}),
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)
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}
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