mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-30 07:40:06 +01:00
91b3c601bc
See https://docs.datadoghq.com/api/latest/metrics/#submit-metrics Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/206
100 lines
2.9 KiB
Go
100 lines
2.9 KiB
Go
package datadog
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import (
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"fmt"
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"net/http"
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"strings"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
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parserCommon "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/common"
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parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadog"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/writeconcurrencylimiter"
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"github.com/VictoriaMetrics/metrics"
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)
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var (
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rowsInserted = metrics.NewCounter(`vmagent_rows_inserted_total{type="datadog"}`)
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rowsTenantInserted = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_rows_total{type="datadog"}`)
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rowsPerInsert = metrics.NewHistogram(`vmagent_rows_per_insert{type="datadog"}`)
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)
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// InsertHandlerForHTTP processes remote write for DataDog POST /api/v1/series request.
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//
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// See https://docs.datadoghq.com/api/latest/metrics/#submit-metrics
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func InsertHandlerForHTTP(at *auth.Token, req *http.Request) error {
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extraLabels, err := parserCommon.GetExtraLabels(req)
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if err != nil {
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return err
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}
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return writeconcurrencylimiter.Do(func() error {
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ce := req.Header.Get("Content-Encoding")
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return parser.ParseStream(req.Body, ce, func(series []parser.Series) error {
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return insertRows(at, series, extraLabels)
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})
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})
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}
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func insertRows(at *auth.Token, series []parser.Series, extraLabels []prompbmarshal.Label) error {
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ctx := common.GetPushCtx()
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defer common.PutPushCtx(ctx)
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rowsTotal := 0
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tssDst := ctx.WriteRequest.Timeseries[:0]
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labels := ctx.Labels[:0]
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samples := ctx.Samples[:0]
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for i := range series {
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ss := &series[i]
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rowsTotal += len(ss.Points)
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labelsLen := len(labels)
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labels = append(labels, prompbmarshal.Label{
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Name: "__name__",
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Value: ss.Metric,
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})
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labels = append(labels, prompbmarshal.Label{
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Name: "host",
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Value: ss.Host,
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})
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for _, tag := range ss.Tags {
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n := strings.IndexByte(tag, ':')
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if n < 0 {
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return fmt.Errorf("cannot find ':' in tag %q", tag)
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}
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name := tag[:n]
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value := tag[n+1:]
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if name == "host" {
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name = "exported_host"
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}
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labels = append(labels, prompbmarshal.Label{
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Name: name,
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Value: value,
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})
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}
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labels = append(labels, extraLabels...)
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samplesLen := len(samples)
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for _, pt := range ss.Points {
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samples = append(samples, prompbmarshal.Sample{
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Timestamp: pt.Timestamp(),
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Value: pt.Value(),
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})
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}
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tssDst = append(tssDst, prompbmarshal.TimeSeries{
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Labels: labels[labelsLen:],
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Samples: samples[samplesLen:],
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})
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}
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ctx.WriteRequest.Timeseries = tssDst
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ctx.Labels = labels
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ctx.Samples = samples
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remotewrite.PushWithAuthToken(at, &ctx.WriteRequest)
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rowsInserted.Add(rowsTotal)
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if at != nil {
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rowsTenantInserted.Get(at).Add(rowsTotal)
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}
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rowsPerInsert.Update(float64(rowsTotal))
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return nil
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}
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