mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-11-21 14:44:00 +00:00
76 lines
2.2 KiB
Go
76 lines
2.2 KiB
Go
package prometheusimport
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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/prompbmarshal"
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parserCommon "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/common"
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parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus"
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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(`vmagent_rows_inserted_total{type="prometheus"}`)
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rowsPerInsert = metrics.NewHistogram(`vmagent_rows_per_insert{type="prometheus"}`)
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)
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// InsertHandler processes `/api/v1/import/prometheus` request.
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func InsertHandler(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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defaultTimestamp, err := parserCommon.GetTimestamp(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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isGzipped := req.Header.Get("Content-Encoding") == "gzip"
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return parser.ParseStream(req.Body, defaultTimestamp, isGzipped, func(rows []parser.Row) error {
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return insertRows(rows, extraLabels)
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}, nil)
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})
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}
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func insertRows(rows []parser.Row, extraLabels []prompbmarshal.Label) error {
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ctx := common.GetPushCtx()
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defer common.PutPushCtx(ctx)
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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 rows {
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r := &rows[i]
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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: r.Metric,
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})
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for j := range r.Tags {
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tag := &r.Tags[j]
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labels = append(labels, prompbmarshal.Label{
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Name: tag.Key,
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Value: tag.Value,
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})
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}
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labels = append(labels, extraLabels...)
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samples = append(samples, prompbmarshal.Sample{
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Value: r.Value,
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Timestamp: r.Timestamp,
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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[len(samples)-1:],
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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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remotewrite.Push(&ctx.WriteRequest)
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rowsInserted.Add(len(rows))
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rowsPerInsert.Update(float64(len(rows)))
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return nil
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}
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