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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,142 @@ | ||
| package totem | ||
|
|
||
| import ( | ||
| "context" | ||
| "time" | ||
|
|
||
| "go.opentelemetry.io/otel/attribute" | ||
| "go.opentelemetry.io/otel/metric/instrument" | ||
| "go.opentelemetry.io/otel/sdk/metric" | ||
| ) | ||
|
|
||
| type MetricsExporter struct { | ||
| rxBytesCollector instrument.Int64Counter | ||
| txBytesCollector instrument.Int64Counter | ||
|
|
||
| rxRpcCollector instrument.Int64Counter | ||
| txRpcCollector instrument.Int64Counter | ||
|
|
||
| svcRxLatencyCollector instrument.Int64Histogram | ||
| svcTxLatencyCollector instrument.Int64Histogram | ||
|
|
||
| staticAttrs []attribute.KeyValue | ||
| } | ||
|
|
||
| // func (m *MetricsExporter) Inverted() *MetricsExporter { | ||
| // if m == nil { | ||
| // return nil | ||
| // } | ||
| // return &MetricsExporter{ | ||
| // rxBytesCollector: m.txBytesCollector, | ||
| // txBytesCollector: m.rxBytesCollector, | ||
|
|
||
| // rxRpcCollector: m.txRpcCollector, | ||
| // txRpcCollector: m.rxRpcCollector, | ||
|
|
||
| // svcRxLatencyCollector: m.svcRxLatencyCollector, | ||
| // svcTxLatencyCollector: m.svcTxLatencyCollector, | ||
|
|
||
| // staticAttrs: m.staticAttrs, | ||
| // } | ||
| // } | ||
|
|
||
| func NewMetricsExporter(reader metric.Reader, staticAttrs ...attribute.KeyValue) *MetricsExporter { | ||
| provider := metric.NewMeterProvider(metric.WithReader(reader)) | ||
| meter := provider.Meter("github.com/kralicky/totem/metrics") | ||
|
|
||
| rxBytes, err := meter.Int64Counter("stream_receive_bytes", | ||
| instrument.WithDescription("Total number of bytes received on a stream")) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| txBytes, err := meter.Int64Counter("stream_transmit_bytes", | ||
| instrument.WithDescription("Total number of bytes transmitted on a stream")) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| rxRpc, err := meter.Int64Counter("stream_receive_rpcs", | ||
| instrument.WithDescription("Total number of requests and replies received on a stream")) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| txRpc, err := meter.Int64Counter("stream_transmit_rpcs", | ||
| instrument.WithDescription("Total number of requests and replies transmitted on a stream")) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| svcRxLatency, err := meter.Int64Histogram("stream_local_service_latency", | ||
| instrument.WithDescription("Incoming RPC request-response latency for services handled locally on a stream"), | ||
| instrument.WithUnit("μs"), | ||
| ) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| svcTxLatency, err := meter.Int64Histogram("stream_remote_service_latency", | ||
| instrument.WithDescription("Outgoing RPC request-response latency for services handled remotely on a stream"), | ||
| instrument.WithUnit("μs"), | ||
| ) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| return &MetricsExporter{ | ||
| rxBytesCollector: rxBytes, | ||
| txBytesCollector: txBytes, | ||
| rxRpcCollector: rxRpc, | ||
| txRpcCollector: txRpc, | ||
| svcRxLatencyCollector: svcRxLatency, | ||
| svcTxLatencyCollector: svcTxLatency, | ||
| staticAttrs: staticAttrs, | ||
| } | ||
| } | ||
|
|
||
| func (m *MetricsExporter) TrackRxBytes(service, method string, count int64) { | ||
| if m == nil { | ||
| return | ||
| } | ||
| attrs := append(m.staticAttrs, | ||
| attribute.Key("service").String(service), | ||
| attribute.Key("method").String(method), | ||
| ) | ||
| m.rxRpcCollector.Add(context.Background(), 1, attrs...) | ||
| m.rxBytesCollector.Add(context.Background(), count, attrs...) | ||
| } | ||
|
|
||
| func (m *MetricsExporter) TrackTxBytes(service, method string, count int64) { | ||
| if m == nil { | ||
| return | ||
| } | ||
| attrs := append(m.staticAttrs, | ||
| attribute.Key("service").String(service), | ||
| attribute.Key("method").String(method), | ||
| ) | ||
| m.txRpcCollector.Add(context.Background(), 1, attrs...) | ||
| m.txBytesCollector.Add(context.Background(), count, attrs...) | ||
| } | ||
|
|
||
| func (m *MetricsExporter) TrackSvcRxLatency(service, method string, latency time.Duration) { | ||
| if m == nil { | ||
| return | ||
| } | ||
| attrs := append(m.staticAttrs, | ||
| attribute.Key("service").String(service), | ||
| attribute.Key("method").String(method), | ||
| ) | ||
| m.svcRxLatencyCollector.Record(context.Background(), latency.Microseconds(), attrs...) | ||
| } | ||
|
|
||
| func (m *MetricsExporter) TrackSvcTxLatency(service, method string, latency time.Duration) { | ||
| if m == nil { | ||
| return | ||
| } | ||
| attrs := append(m.staticAttrs, | ||
| attribute.Key("service").String(service), | ||
| attribute.Key("method").String(method), | ||
| ) | ||
| m.svcTxLatencyCollector.Record(context.Background(), latency.Microseconds(), attrs...) | ||
| } |
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