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https://github.com/VictoriaMetrics/VictoriaMetrics.git
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fdb3c96fc1
Due to bug introduced at initial datadog-sketches API implementation, `host` label was incorrectly obtained from `Tags` structure. While actually it's present directly at root of protobuf message. This commit properly attaches `host` label in such case. Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10557
80 lines
2.4 KiB
Go
80 lines
2.4 KiB
Go
package datadogsketches
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import (
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"net/http"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/common"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/relabel"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogsketches"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogsketches/stream"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogutil"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
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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="datadogsketches"}`)
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rowsPerInsert = metrics.NewHistogram(`vm_rows_per_insert{type="datadogsketches"}`)
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)
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// InsertHandlerForHTTP processes remote write for DataDog POST /api/beta/sketches request.
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func InsertHandlerForHTTP(req *http.Request) error {
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extraLabels, err := protoparserutil.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(sketches []*datadogsketches.Sketch) error {
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return insertRows(sketches, extraLabels)
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})
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}
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func insertRows(sketches []*datadogsketches.Sketch, extraLabels []prompb.Label) error {
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ctx := common.GetInsertCtx()
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defer common.PutInsertCtx(ctx)
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rowsLen := 0
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for _, sketch := range sketches {
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rowsLen += sketch.RowsCount()
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}
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ctx.Reset(rowsLen)
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rowsTotal := 0
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hasRelabeling := relabel.HasRelabeling()
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for _, sketch := range sketches {
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ms := sketch.ToSummary()
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for _, m := range ms {
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ctx.Labels = ctx.Labels[:0]
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// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10557
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ctx.AddLabel("host", sketch.Host) // newly added
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ctx.AddLabel("", m.Name)
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for _, label := range m.Labels {
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ctx.AddLabel(label.Name, label.Value)
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}
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for _, tag := range sketch.Tags {
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name, value := datadogutil.SplitTag(tag)
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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 !ctx.TryPrepareLabels(hasRelabeling) {
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continue
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}
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var metricNameRaw []byte
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var err error
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for _, p := range m.Points {
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metricNameRaw, err = ctx.WriteDataPointExt(metricNameRaw, ctx.Labels, p.Timestamp, p.Value)
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if err != nil {
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return err
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}
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}
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rowsTotal += len(m.Points)
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}
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}
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rowsInserted.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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