mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
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62a105d9e9
This commit adds only JSON support - https://docs.datadoghq.com/api/latest/metrics/#submit-metrics , while recent versions of DataDog Agent send data to /api/v2/series in undocumented Protobuf format. The support for this format will be added later. Thanks to @AndrewChubatiuk for the initial implementation at https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5094 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4451
96 lines
3 KiB
Go
96 lines
3 KiB
Go
package datadogv2
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import (
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"net/http"
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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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"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogutils"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogv2"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogv2/stream"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
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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="datadogv2"}`)
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rowsTenantInserted = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_rows_total{type="datadogv2"}`)
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rowsPerInsert = metrics.NewHistogram(`vmagent_rows_per_insert{type="datadogv2"}`)
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)
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// InsertHandlerForHTTP processes remote write for DataDog POST /api/v2/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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ct := req.Header.Get("Content-Type")
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ce := req.Header.Get("Content-Encoding")
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return stream.Parse(req.Body, ce, ct, func(series []datadogv2.Series) error {
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return insertRows(at, series, extraLabels)
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})
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}
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func insertRows(at *auth.Token, series []datadogv2.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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for _, rs := range ss.Resources {
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labels = append(labels, prompbmarshal.Label{
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Name: rs.Type,
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Value: rs.Name,
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})
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}
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for _, tag := range ss.Tags {
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name, value := datadogutils.SplitTag(tag)
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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 * 1000,
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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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if !remotewrite.TryPush(at, &ctx.WriteRequest) {
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return remotewrite.ErrQueueFullHTTPRetry
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}
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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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