VictoriaMetrics/app/vminsert/prometheusimport/request_handler.go
Roman Khavronenko 1f2cb594d9
lib/promscrape: make concurrency control optional ()
* lib/promscrape: make concurrency control optional

Before, `-maxConcurrentInserts` was limiting all calls to `promscrape.Parse`
function: during ingestion and scraping. This behavior is incorrect.
Cmd-line flag `-maxConcurrentInserts` should have effect onl on ingestion.

Since both pipelines use the same `promscrape.Parse` function, we extend it
to make concurrency limiter optional. So caller can decide whether concurrency
should be limited or not.

This commit makes c53b5788b4
obsolete.

Signed-off-by: hagen1778 <roman@victoriametrics.com>

* Revert "dashboards: move `Concurrent inserts` panel to Troubleshooting section"

This reverts commit c53b5788b4.

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-10-02 21:34:41 +02:00

80 lines
2.6 KiB
Go

package prometheusimport
import (
"net/http"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/netstorage"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/relabel"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
parserCommon "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/common"
parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus/stream"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
"github.com/VictoriaMetrics/metrics"
)
var (
rowsInserted = metrics.NewCounter(`vm_rows_inserted_total{type="prometheus"}`)
rowsTenantInserted = tenantmetrics.NewCounterMap(`vm_tenant_inserted_rows_total{type="prometheus"}`)
rowsPerInsert = metrics.NewHistogram(`vm_rows_per_insert{type="prometheus"}`)
)
// InsertHandler processes `/api/v1/import/prometheus` request.
func InsertHandler(at *auth.Token, req *http.Request) error {
extraLabels, err := parserCommon.GetExtraLabels(req)
if err != nil {
return err
}
defaultTimestamp, err := parserCommon.GetTimestamp(req)
if err != nil {
return err
}
isGzipped := req.Header.Get("Content-Encoding") == "gzip"
return stream.Parse(req.Body, defaultTimestamp, isGzipped, true, func(rows []parser.Row) error {
return insertRows(at, rows, extraLabels)
}, func(s string) {
httpserver.LogError(req, s)
})
}
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.
perTenantRows := make(map[auth.Token]int)
hasRelabeling := relabel.HasRelabeling()
for i := range rows {
r := &rows[i]
ctx.Labels = ctx.Labels[:0]
ctx.AddLabel("", r.Metric)
for j := range r.Tags {
tag := &r.Tags[j]
ctx.AddLabel(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)
if err := ctx.WriteDataPoint(atLocal, ctx.Labels, r.Timestamp, r.Value); err != nil {
return err
}
perTenantRows[*atLocal]++
}
rowsInserted.Add(len(rows))
rowsTenantInserted.MultiAdd(perTenantRows)
rowsPerInsert.Update(float64(len(rows)))
return ctx.FlushBufs()
}