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measured_client.go
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/
measured_client.go
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package remotewrite
import (
"context"
"time"
"github.com/grafana/mimir/pkg/mimirpb"
"github.com/opentracing/opentracing-go"
)
type MeasuredClient struct {
client Client
recorder Recorder
tracer opentracing.Tracer
timeNow func() time.Time
}
func NewMeasuredClient(client Client, recorder Recorder, tracer opentracing.Tracer, timeNow func() time.Time) Client {
return &MeasuredClient{
client: client,
recorder: recorder,
tracer: tracer,
timeNow: timeNow,
}
}
func (mc *MeasuredClient) Write(ctx context.Context, req *mimirpb.WriteRequest) (err error) {
sp, ctx := opentracing.StartSpanFromContextWithTracer(ctx, mc.tracer, "remotewrite.Write")
defer sp.Finish()
sp.LogKV("series_count", len(req.Timeseries))
if len(req.Metadata) > 0 {
sp.LogKV("example_metric", req.Metadata[0].MetricFamilyName)
}
defer func(t0 time.Time) {
mc.recorder.measure("Write", mc.timeNow().Sub(t0), err)
}(mc.timeNow())
return mc.client.Write(ctx, req)
}