VictoriaMetrics/app/vminsert/vmimport/request_handler.go

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package vmimport
import (
"net/http"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/netstorage"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/relabel"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
parserCommon "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/common"
parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/vmimport"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
"github.com/VictoriaMetrics/metrics"
)
var (
rowsInserted = metrics.NewCounter(`vm_rows_inserted_total{type="vmimport"}`)
rowsTenantInserted = tenantmetrics.NewCounterMap(`vm_tenant_inserted_rows_total{type="vmimport"}`)
rowsPerInsert = metrics.NewHistogram(`vm_rows_per_insert{type="vmimport"}`)
)
// InsertHandler processes `/api/v1/import` request.
//
// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6
func InsertHandler(at *auth.Token, req *http.Request) error {
extraLabels, err := parserCommon.GetExtraLabels(req)
if err != nil {
return err
}
isGzipped := req.Header.Get("Content-Encoding") == "gzip"
return parser.ParseStream(req.Body, isGzipped, func(rows []parser.Row) error {
return insertRows(at, rows, extraLabels)
})
}
func insertRows(at *auth.Token, rows []parser.Row, extraLabels []prompbmarshal.Label) error {
ctx := netstorage.GetInsertCtx()
defer netstorage.PutInsertCtx(ctx)
ctx.Reset() // This line is required for initializing ctx internals.
rowsTotal := 0
perTenantRows := make(map[auth.Token]int)
hasRelabeling := relabel.HasRelabeling()
for i := range rows {
r := &rows[i]
rowsTotal += len(r.Values)
ctx.Labels = ctx.Labels[:0]
for j := range r.Tags {
tag := &r.Tags[j]
ctx.AddLabelBytes(tag.Key, tag.Value)
}
for j := range extraLabels {
label := &extraLabels[j]
ctx.AddLabel(label.Name, label.Value)
}
if hasRelabeling {
ctx.ApplyRelabeling()
}
if len(ctx.Labels) == 0 {
// Skip metric without labels.
continue
}
ctx.SortLabelsIfNeeded()
atLocal := ctx.GetLocalAuthToken(at)
ctx.MetricNameBuf = storage.MarshalMetricNameRaw(ctx.MetricNameBuf[:0], atLocal.AccountID, atLocal.ProjectID, ctx.Labels)
storageNodeIdx := ctx.GetStorageNodeIdx(atLocal, ctx.Labels)
values := r.Values
timestamps := r.Timestamps
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if len(timestamps) != len(values) {
logger.Panicf("BUG: len(timestamps)=%d must match len(values)=%d", len(timestamps), len(values))
}
for j, value := range values {
timestamp := timestamps[j]
if err := ctx.WriteDataPointExt(storageNodeIdx, ctx.MetricNameBuf, timestamp, value); err != nil {
return err
}
}
perTenantRows[*atLocal] += len(r.Values)
}
rowsInserted.Add(rowsTotal)
rowsTenantInserted.MultiAdd(perTenantRows)
rowsPerInsert.Update(float64(rowsTotal))
return ctx.FlushBufs()
}