mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
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505d359b39
* app/vminsert: allows parsing tenant id from labels it should help mitigate issues with vmagent's multiTenant mode, which works incorrectly at heavy load and it cannot handle more then 100 different tenants. This functional hidden with flag and do not change vminsert default behaviour https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2970 * Update docs/Cluster-VictoriaMetrics.md Co-authored-by: Roman Khavronenko <roman@victoriametrics.com> * wip * app/vminsert/netstorage: clean remaining labels in order to free up GC * docs/Cluster-VictoriaMetrics.md: typo fix * wip * wip Co-authored-by: Roman Khavronenko <roman@victoriametrics.com> Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
78 lines
2.5 KiB
Go
78 lines
2.5 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/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/prompbmarshal"
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parserCommon "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/common"
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parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus"
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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 = metrics.NewCounter(`vm_rows_inserted_total{type="prometheus"}`)
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rowsTenantInserted = tenantmetrics.NewCounterMap(`vm_tenant_inserted_rows_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(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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defaultTimestamp, err := parserCommon.GetTimestamp(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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isGzipped := req.Header.Get("Content-Encoding") == "gzip"
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return parser.ParseStream(req.Body, defaultTimestamp, isGzipped, func(rows []parser.Row) error {
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return insertRows(at, rows, extraLabels)
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}, nil)
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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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perTenantRows := make(map[auth.Token]int)
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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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ctx.SortLabelsIfNeeded()
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atLocal := ctx.GetLocalAuthToken(at)
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if err := ctx.WriteDataPoint(atLocal, ctx.Labels, r.Timestamp, r.Value); err != nil {
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return err
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}
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perTenantRows[*atLocal]++
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}
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rowsInserted.Add(len(rows))
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rowsTenantInserted.MultiAdd(perTenantRows)
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rowsPerInsert.Update(float64(len(rows)))
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return ctx.FlushBufs()
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}
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