mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
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72 lines
2.4 KiB
Go
72 lines
2.4 KiB
Go
package graphite
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import (
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"io"
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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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parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/graphite"
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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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"github.com/valyala/fastjson/fastfloat"
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)
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var (
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rowsInserted = tenantmetrics.NewCounterMap(`vm_rows_inserted_total{type="graphite"}`)
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rowsPerInsert = metrics.NewHistogram(`vm_rows_per_insert{type="graphite"}`)
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)
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// InsertHandler processes remote write for graphite plaintext protocol.
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//
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// See https://graphite.readthedocs.io/en/latest/feeding-carbon.html#the-plaintext-protocol
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func InsertHandler(at *auth.Token, r io.Reader) error {
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return writeconcurrencylimiter.Do(func() error {
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return parser.ParseStream(r, func(rows []parser.Row) error {
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return insertRows(at, rows)
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})
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})
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}
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func insertRows(at *auth.Token, rows []parser.Row) 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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atCopy := *at
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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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if atCopy.AccountID == 0 {
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// Multi-tenancy support via custom tags.
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// Do not allow overriding AccountID and ProjectID from atCopy for security reasons.
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if tag.Key == "VictoriaMetrics_AccountID" {
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atCopy.AccountID = uint32(fastfloat.ParseUint64BestEffort(tag.Value))
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}
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if atCopy.ProjectID == 0 && tag.Key == "VictoriaMetrics_ProjectID" {
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atCopy.ProjectID = uint32(fastfloat.ParseUint64BestEffort(tag.Value))
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}
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}
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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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if err := ctx.WriteDataPoint(&atCopy, 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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// Assume that all the rows for a single connection belong to the same (AccountID, ProjectID).
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rowsInserted.Get(&atCopy).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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