mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-01 14:47:38 +00:00
91 lines
2.9 KiB
Go
91 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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"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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parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadog"
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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/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(`vm_rows_inserted_total{type="datadog"}`)
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rowsTenantInserted = tenantmetrics.NewCounterMap(`vm_tenant_inserted_rows_total{type="datadog"}`)
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rowsPerInsert = metrics.NewHistogram(`vm_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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err := 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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if err != nil {
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return fmt.Errorf("headers: %q; err: %w", req.Header, err)
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}
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return nil
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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 := 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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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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ctx.AddLabel("host", ss.Host)
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for _, tag := range ss.Tags {
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name, value := parser.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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ctx.MetricNameBuf = storage.MarshalMetricNameRaw(ctx.MetricNameBuf[:0], at.AccountID, at.ProjectID, ctx.Labels)
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storageNodeIdx := ctx.GetStorageNodeIdx(at, 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(at, 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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}
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rowsInserted.Add(rowsTotal)
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rowsTenantInserted.Get(at).Add(rowsTotal)
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rowsPerInsert.Update(float64(rowsTotal))
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return ctx.FlushBufs()
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}
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