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
92 lines
3.0 KiB
Go
92 lines
3.0 KiB
Go
package datadogv1
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import (
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"net/http"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/netstorage"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/relabel"
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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/datadogv1"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogv1/stream"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
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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(`vm_rows_inserted_total{type="datadogv1"}`)
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rowsTenantInserted = tenantmetrics.NewCounterMap(`vm_tenant_inserted_rows_total{type="datadogv1"}`)
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rowsPerInsert = metrics.NewHistogram(`vm_rows_per_insert{type="datadogv1"}`)
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)
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// InsertHandlerForHTTP processes remote write for DataDog POST /api/v1/series request.
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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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ce := req.Header.Get("Content-Encoding")
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return stream.Parse(req.Body, ce, func(series []datadogv1.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 []datadogv1.Series, extraLabels []prompbmarshal.Label) error {
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ctx := netstorage.GetInsertCtx()
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defer netstorage.PutInsertCtx(ctx)
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ctx.Reset()
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rowsTotal := 0
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perTenantRows := make(map[auth.Token]int)
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hasRelabeling := relabel.HasRelabeling()
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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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ctx.Labels = ctx.Labels[:0]
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ctx.AddLabel("", ss.Metric)
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if ss.Host != "" {
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ctx.AddLabel("host", ss.Host)
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}
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if ss.Device != "" {
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ctx.AddLabel("device", ss.Device)
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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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ctx.AddLabel(name, value)
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}
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for j := range extraLabels {
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label := &extraLabels[j]
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ctx.AddLabel(label.Name, label.Value)
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}
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if hasRelabeling {
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ctx.ApplyRelabeling()
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}
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if len(ctx.Labels) == 0 {
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// Skip metric without labels.
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continue
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}
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ctx.SortLabelsIfNeeded()
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atLocal := ctx.GetLocalAuthToken(at)
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ctx.MetricNameBuf = storage.MarshalMetricNameRaw(ctx.MetricNameBuf[:0], atLocal.AccountID, atLocal.ProjectID, ctx.Labels)
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storageNodeIdx := ctx.GetStorageNodeIdx(atLocal, ctx.Labels)
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for _, pt := range ss.Points {
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timestamp := pt.Timestamp()
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value := pt.Value()
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if err := ctx.WriteDataPointExt(storageNodeIdx, ctx.MetricNameBuf, timestamp, value); err != nil {
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return err
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}
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}
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perTenantRows[*atLocal] += len(ss.Points)
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}
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rowsInserted.Add(rowsTotal)
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rowsTenantInserted.MultiAdd(perTenantRows)
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rowsPerInsert.Update(float64(rowsTotal))
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return ctx.FlushBufs()
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}
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