mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
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123 lines
3.8 KiB
Go
123 lines
3.8 KiB
Go
package influx
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import (
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"flag"
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"net/http"
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"runtime"
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"sync"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/netstorage"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
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parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/influx"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
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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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measurementFieldSeparator = flag.String("influxMeasurementFieldSeparator", "_", "Separator for '{measurement}{separator}{field_name}' metric name when inserted via Influx line protocol")
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skipSingleField = flag.Bool("influxSkipSingleField", false, "Uses '{measurement}' instead of '{measurement}{separator}{field_name}' for metic name if Influx line contains only a single field")
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)
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var (
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rowsInserted = tenantmetrics.NewCounterMap(`vm_rows_inserted_total{type="influx"}`)
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rowsPerInsert = metrics.NewHistogram(`vm_rows_per_insert{type="influx"}`)
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)
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// InsertHandler processes remote write for influx line protocol.
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//
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// See https://github.com/influxdata/influxdb/blob/4cbdc197b8117fee648d62e2e5be75c6575352f0/tsdb/README.md
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func InsertHandler(at *auth.Token, req *http.Request) error {
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return writeconcurrencylimiter.Do(func() error {
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return parser.ParseStream(req, func(db string, rows []parser.Row) error {
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return insertRows(at, db, rows)
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})
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})
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}
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func insertRows(at *auth.Token, db string, rows []parser.Row) error {
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ctx := getPushCtx()
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defer putPushCtx(ctx)
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ic := &ctx.Common
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rowsTotal := 0
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for i := range rows {
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r := &rows[i]
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ic.Labels = ic.Labels[:0]
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hasDBLabel := false
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for j := range r.Tags {
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tag := &r.Tags[j]
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if tag.Key == "db" {
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hasDBLabel = true
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}
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ic.AddLabel(tag.Key, tag.Value)
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}
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if len(db) > 0 && !hasDBLabel {
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ic.AddLabel("db", db)
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}
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ic.MetricNameBuf = storage.MarshalMetricNameRaw(ic.MetricNameBuf[:0], at.AccountID, at.ProjectID, ic.Labels)
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metricNameBufLen := len(ic.MetricNameBuf)
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ctx.metricGroupBuf = append(ctx.metricGroupBuf[:0], r.Measurement...)
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skipFieldKey := len(r.Fields) == 1 && *skipSingleField
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if len(ctx.metricGroupBuf) > 0 && !skipFieldKey {
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ctx.metricGroupBuf = append(ctx.metricGroupBuf, *measurementFieldSeparator...)
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}
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metricGroupPrefixLen := len(ctx.metricGroupBuf)
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ic.AddLabel("", "placeholder")
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placeholderLabel := &ic.Labels[len(ic.Labels)-1]
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for j := range r.Fields {
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f := &r.Fields[j]
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if !skipFieldKey {
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ctx.metricGroupBuf = append(ctx.metricGroupBuf[:metricGroupPrefixLen], f.Key...)
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}
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metricGroup := bytesutil.ToUnsafeString(ctx.metricGroupBuf)
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ic.Labels = ic.Labels[:len(ic.Labels)-1]
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ic.AddLabel("", metricGroup)
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ic.MetricNameBuf = storage.MarshalMetricLabelRaw(ic.MetricNameBuf[:metricNameBufLen], placeholderLabel)
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storageNodeIdx := ic.GetStorageNodeIdx(at, ic.Labels)
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if err := ic.WriteDataPointExt(at, storageNodeIdx, ic.MetricNameBuf, r.Timestamp, f.Value); err != nil {
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return err
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}
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}
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rowsTotal += len(r.Fields)
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}
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rowsInserted.Get(at).Add(rowsTotal)
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rowsPerInsert.Update(float64(rowsTotal))
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return ic.FlushBufs()
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}
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type pushCtx struct {
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Common netstorage.InsertCtx
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metricGroupBuf []byte
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}
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func (ctx *pushCtx) reset() {
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ctx.Common.Reset()
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ctx.metricGroupBuf = ctx.metricGroupBuf[:0]
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}
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func getPushCtx() *pushCtx {
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select {
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case ctx := <-pushCtxPoolCh:
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return ctx
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default:
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if v := pushCtxPool.Get(); v != nil {
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return v.(*pushCtx)
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}
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return &pushCtx{}
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}
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}
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func putPushCtx(ctx *pushCtx) {
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ctx.reset()
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select {
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case pushCtxPoolCh <- ctx:
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default:
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pushCtxPool.Put(ctx)
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}
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}
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var pushCtxPool sync.Pool
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var pushCtxPoolCh = make(chan *pushCtx, runtime.GOMAXPROCS(-1))
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