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https://github.com/VictoriaMetrics/VictoriaMetrics.git
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7832d0800e
- Document the ability to read OpenTelemetry data from Amazon Firehose at docs/CHANGELOG.md - Simplify parsing Firehose data. There is no need in trying to optimize the parsing with fastjson and byte slice tricks, since OpenTelemetry protocol is really slooow because of over-engineering. It is better to write clear code for better maintanability in the future. - Move Firehose parser from /lib/protoparser/firehose to lib/protoparser/opentelemetry/firehose, since it is used only by opentelemetry parser. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5893
78 lines
2.6 KiB
Go
78 lines
2.6 KiB
Go
package opentelemetry
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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/vmagent/common"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
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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/opentelemetry/firehose"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentelemetry/stream"
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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(`vmagent_rows_inserted_total{type="opentelemetry"}`)
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rowsTenantInserted = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_rows_total{type="opentelemetry"}`)
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rowsPerInsert = metrics.NewHistogram(`vmagent_rows_per_insert{type="opentelemetry"}`)
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)
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// InsertHandler processes opentelemetry metrics.
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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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isGzipped := req.Header.Get("Content-Encoding") == "gzip"
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var processBody func([]byte) ([]byte, error)
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if req.Header.Get("Content-Type") == "application/json" {
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if req.Header.Get("X-Amz-Firehouse-Protocol-Version") != "" {
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processBody = firehose.ProcessRequestBody
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} else {
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return fmt.Errorf("json encoding isn't supported for opentelemetry format. Use protobuf encoding")
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}
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}
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return stream.ParseStream(req.Body, isGzipped, processBody, func(tss []prompbmarshal.TimeSeries) error {
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return insertRows(at, tss, extraLabels)
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})
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}
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func insertRows(at *auth.Token, tss []prompbmarshal.TimeSeries, extraLabels []prompbmarshal.Label) error {
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ctx := common.GetPushCtx()
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defer common.PutPushCtx(ctx)
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rowsTotal := 0
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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 tss {
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ts := &tss[i]
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rowsTotal += len(ts.Samples)
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labelsLen := len(labels)
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labels = append(labels, ts.Labels...)
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labels = append(labels, extraLabels...)
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samplesLen := len(samples)
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samples = append(samples, ts.Samples...)
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tssDst = append(tssDst, prompbmarshal.TimeSeries{
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Labels: labels[labelsLen:],
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Samples: samples[samplesLen:],
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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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if !remotewrite.TryPush(at, &ctx.WriteRequest) {
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return remotewrite.ErrQueueFullHTTPRetry
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}
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rowsInserted.Add(rowsTotal)
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if at != nil {
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rowsTenantInserted.Get(at).Add(rowsTotal)
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}
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rowsPerInsert.Update(float64(rowsTotal))
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return nil
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}
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