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512addc608
This option can be useful when samples for the same time series are ingested with distinct order of labels.
For example, metric{k1="v1",k2="v2"} and metric{k2="v2",k1="v1"}.
82 lines
2.8 KiB
Go
82 lines
2.8 KiB
Go
package promremotewrite
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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/prompb"
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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/promremotewrite"
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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="promremotewrite"}`)
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rowsTenantInserted = tenantmetrics.NewCounterMap(`vm_tenant_inserted_rows_total{type="promremotewrite"}`)
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rowsPerInsert = metrics.NewHistogram(`vm_rows_per_insert{type="promremotewrite"}`)
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)
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// InsertHandler processes remote write for prometheus.
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func InsertHandler(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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return parser.ParseStream(req, func(tss []prompb.TimeSeries) error {
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return insertRows(at, tss, extraLabels)
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})
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})
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}
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func insertRows(at *auth.Token, timeseries []prompb.TimeSeries, 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() // This line is required for initializing ctx internals.
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rowsTotal := 0
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hasRelabeling := relabel.HasRelabeling()
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for i := range timeseries {
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ts := ×eries[i]
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rowsTotal += len(ts.Samples)
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ctx.Labels = ctx.Labels[:0]
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srcLabels := ts.Labels
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for _, srcLabel := range srcLabels {
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ctx.AddLabelBytes(srcLabel.Name, srcLabel.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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storageNodeIdx := ctx.GetStorageNodeIdx(at, ctx.Labels)
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ctx.MetricNameBuf = ctx.MetricNameBuf[:0]
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samples := ts.Samples
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for i := range samples {
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r := &samples[i]
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if len(ctx.MetricNameBuf) == 0 {
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ctx.MetricNameBuf = storage.MarshalMetricNameRaw(ctx.MetricNameBuf[:0], at.AccountID, at.ProjectID, ctx.Labels)
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}
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if err := ctx.WriteDataPointExt(at, storageNodeIdx, ctx.MetricNameBuf, r.Timestamp, r.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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