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https://github.com/VictoriaMetrics/VictoriaMetrics.git
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c6c5a5a186
In this PR I added compatibility with [statsd protocol](https://github.com/b/statsd_spec) with tags to be able to send metrics directly from statsd clients to vmagent or directly to VM. For example its compatible with [statsd-instrument](https://github.com/Shopify/statsd-instrument) and [dogstatsd-ruby](https://github.com/DataDog/dogstatsd-ruby) gems Related issues: #5052, #206, #4600
55 lines
1.4 KiB
Go
55 lines
1.4 KiB
Go
package statsd
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import (
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"io"
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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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parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/statsd"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/statsd/stream"
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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="statsd"}`)
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rowsPerInsert = metrics.NewHistogram(`vm_rows_per_insert{type="statsd"}`)
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)
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// InsertHandler processes remote write for statsd protocol with tags.
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//
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// https://github.com/statsd/statsd/blob/master/docs/metric_types.md
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func InsertHandler(r io.Reader) error {
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return stream.Parse(r, false, insertRows)
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}
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func insertRows(rows []parser.Row) 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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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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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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