VictoriaMetrics/app/vmagent/opentelemetry/request_handler.go
Andrii Chubatiuk 67a55b89a4
{vmagent,vminsert}: added firehose http destination opentelemetry data ingestion support (#5893)
Co-authored-by: Andrii Chubatiuk <wachy@Andriis-MBP-2.lan>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2024-02-29 14:03:24 +02:00

77 lines
2.6 KiB
Go

package opentelemetry
import (
"fmt"
"net/http"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
parserCommon "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/common"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/firehose"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentelemetry/stream"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
"github.com/VictoriaMetrics/metrics"
)
var (
rowsInserted = metrics.NewCounter(`vmagent_rows_inserted_total{type="opentelemetry"}`)
rowsTenantInserted = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_rows_total{type="opentelemetry"}`)
rowsPerInsert = metrics.NewHistogram(`vmagent_rows_per_insert{type="opentelemetry"}`)
)
// InsertHandler processes opentelemetry metrics.
func InsertHandler(at *auth.Token, req *http.Request) error {
extraLabels, err := parserCommon.GetExtraLabels(req)
if err != nil {
return err
}
isGzipped := req.Header.Get("Content-Encoding") == "gzip"
var processBody func(*[]byte) error
if req.Header.Get("Content-Type") == "application/json" {
if req.Header.Get("X-Amz-Firehouse-Protocol-Version") != "" {
processBody = firehose.ProcessRequestBody
} else {
return fmt.Errorf("json encoding isn't supported for opentelemetry format. Use protobuf encoding")
}
}
return stream.ParseStream(req.Body, isGzipped, processBody, func(tss []prompbmarshal.TimeSeries) error {
return insertRows(at, tss, extraLabels)
})
}
func insertRows(at *auth.Token, tss []prompbmarshal.TimeSeries, extraLabels []prompbmarshal.Label) error {
ctx := common.GetPushCtx()
defer common.PutPushCtx(ctx)
rowsTotal := 0
tssDst := ctx.WriteRequest.Timeseries[:0]
labels := ctx.Labels[:0]
samples := ctx.Samples[:0]
for i := range tss {
ts := &tss[i]
rowsTotal += len(ts.Samples)
labelsLen := len(labels)
labels = append(labels, ts.Labels...)
labels = append(labels, extraLabels...)
samplesLen := len(samples)
samples = append(samples, ts.Samples...)
tssDst = append(tssDst, prompbmarshal.TimeSeries{
Labels: labels[labelsLen:],
Samples: samples[samplesLen:],
})
}
ctx.WriteRequest.Timeseries = tssDst
ctx.Labels = labels
ctx.Samples = samples
if !remotewrite.TryPush(at, &ctx.WriteRequest) {
return remotewrite.ErrQueueFullHTTPRetry
}
rowsInserted.Add(rowsTotal)
if at != nil {
rowsTenantInserted.Get(at).Add(rowsTotal)
}
rowsPerInsert.Update(float64(rowsTotal))
return nil
}