mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
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89 lines
2.7 KiB
Go
89 lines
2.7 KiB
Go
package opentsdbhttp
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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/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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"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
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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/opentsdbhttp"
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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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)
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var (
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rowsInserted = tenantmetrics.NewCounterMap(`vm_rows_inserted_total{type="opentsdbhttp"}`)
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rowsPerInsert = metrics.NewHistogram(`vm_rows_per_insert{type="opentsdbhttp"}`)
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)
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// InsertHandler processes HTTP OpenTSDB put requests.
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// See http://opentsdb.net/docs/build/html/api_http/put.html
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func InsertHandler(req *http.Request) error {
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path := req.URL.Path
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p, err := httpserver.ParsePath(path)
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if err != nil {
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return fmt.Errorf("cannot parse path %q: %w", path, err)
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}
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if p.Prefix != "insert" {
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// This is not our link.
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return fmt.Errorf("unexpected path requested on HTTP OpenTSDB server: %q", path)
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}
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at, err := auth.NewToken(p.AuthToken)
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if err != nil {
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return fmt.Errorf("auth error: %w", err)
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}
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switch p.Suffix {
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case "api/put", "opentsdb/api/put":
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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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return writeconcurrencylimiter.Do(func() error {
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return parser.ParseStream(req, func(rows []parser.Row) error {
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return insertRows(at, rows, extraLabels)
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})
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})
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default:
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return fmt.Errorf("unexpected path requested on HTTP OpenTSDB server: %q", path)
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}
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}
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func insertRows(at *auth.Token, rows []parser.Row, extraLabels []prompbmarshal.Label) 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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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 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(at, 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.Get(at).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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