mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
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25cd5637bc
By default, `vmagent` doesn't parse [metadata](https://github.com/prometheus/docs/blob/main/docs/instrumenting/exposition_formats.md) when scraping targets, and drops metadata that received via [Prometheus remote write v1(https://prometheus.io/docs/specs/prw/remote_write_spec/) or [OpenTelemetryprotocol](https://github.com/open-telemetry/opentelemetryproto/blob/v1.7.0/opentelemetry/proto/metrics/v1/metrics.proto). To enable parsing metadata when scraping and sending metadata to the configured `-remoteWrite.url`, set `-enableMetadata=true`. Besides native metadata fields, vmagent also adds tenant info to metadata when `-enableMultitenantHandlers` is enabled and data is sent via the multitenant endpoints (/insert/<accountID>/<suffix>), allowing storing metadata under different tenants in VictoriaMetrics cluster. However, if `vm_account_id` or `vm_project_id labels` are added directly in metrics labels and send to the [vminsert multitenantendpoints](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multitenancy-via-labels), tenant info won't be attached in the metadata, and it will be stored in the default tenant of VictoriaMetrics cluster. part of https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2974
69 lines
2.1 KiB
Go
69 lines
2.1 KiB
Go
package prometheusimport
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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/httpserver"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/promscrape"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus/stream"
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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="prometheus"}`)
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rowsPerInsert = metrics.NewHistogram(`vm_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 := protoparserutil.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 := protoparserutil.GetTimestamp(req)
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if err != nil {
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return err
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}
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encoding := req.Header.Get("Content-Encoding")
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return stream.Parse(req.Body, defaultTimestamp, encoding, true, promscrape.IsMetadataEnabled(), func(rows []prometheus.Row, _ []prometheus.Metadata) error {
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return insertRows(rows, extraLabels)
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}, func(s string) {
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httpserver.LogError(req, s)
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})
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}
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func insertRows(rows []prometheus.Row, extraLabels []prompb.Label) error {
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ctx := common.GetInsertCtx()
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defer common.PutInsertCtx(ctx)
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ctx.Reset(len(rows))
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hasRelabeling := relabel.HasRelabeling()
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for i := range rows {
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r := &rows[i]
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ctx.Labels = ctx.Labels[:0]
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ctx.AddLabel("", r.Metric)
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for j := range r.Tags {
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tag := &r.Tags[j]
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ctx.AddLabel(tag.Key, tag.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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if err := ctx.WriteDataPoint(nil, ctx.Labels, r.Timestamp, r.Value); err != nil {
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return err
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}
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}
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rowsInserted.Add(len(rows))
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rowsPerInsert.Update(float64(len(rows)))
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return ctx.FlushBufs()
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}
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