/
metrics.go
77 lines (70 loc) · 2.34 KB
/
metrics.go
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package cortex
import (
"sync"
"go.opentelemetry.io/otel/metric"
sdkmetric "go.opentelemetry.io/otel/sdk/metric"
"go.opentelemetry.io/otel/sdk/metric/aggregation"
)
var (
muMeterProvider sync.Mutex
cIngestBytesByID metric.Int64Counter
cRemoteWriteRequests metric.Int64Counter
hRemoteWriteProcessingLatency metric.Int64Histogram
cRemoteWriteTotalProcessedSeries metric.Int64Counter
meterProvider *sdkmetric.MeterProvider
)
func RegisterMeterProvider(mp *sdkmetric.MeterProvider) {
muMeterProvider.Lock()
defer muMeterProvider.Unlock()
meterProvider = mp
createMetrics()
}
func createMetrics() {
meter := meterProvider.Meter("gateway")
var err error
cIngestBytesByID, err = meter.Int64Counter("remote_write_cluster_ingest_bytes",
metric.WithDescription("Total number of (compressed) bytes received from remote write requests by cluster ID"))
if err != nil {
panic(err)
}
cRemoteWriteRequests, err = meter.Int64Counter("remote_write_requests_total",
metric.WithDescription("Total number of remote write requests forwarded to Cortex"))
if err != nil {
panic(err)
}
hRemoteWriteProcessingLatency, err = meter.Int64Histogram("remote_write_processing_latency_ns",
metric.WithDescription("Latency of remote write processing in nanoseconds per timeseries"),
metric.WithUnit("ns"),
)
if err != nil {
panic(err)
}
cRemoteWriteTotalProcessedSeries, err = meter.Int64Counter("remote_write_total_processed_series",
metric.WithDescription("Total number of series processed by remote write"))
if err != nil {
panic(err)
}
}
func CortexAggregationSelector(ik sdkmetric.InstrumentKind) aggregation.Aggregation {
switch ik {
case sdkmetric.InstrumentKindCounter, sdkmetric.InstrumentKindUpDownCounter,
sdkmetric.InstrumentKindObservableCounter, sdkmetric.InstrumentKindObservableUpDownCounter:
return aggregation.Sum{}
case sdkmetric.InstrumentKindObservableGauge:
return aggregation.LastValue{}
case sdkmetric.InstrumentKindHistogram:
return aggregation.ExplicitBucketHistogram{
Boundaries: []float64{30, 35, 37.5, 40, 42.5, 45, 50, 55, 60, 75, 100},
NoMinMax: false,
}
}
panic("unknown instrument kind")
}
func init() {
muMeterProvider.Lock()
defer muMeterProvider.Unlock()
if meterProvider == nil {
meterProvider = sdkmetric.NewMeterProvider()
}
createMetrics()
}