VictoriaMetrics/app/vlinsert/loki/loki.go
Aliaksandr Valialkin e9647bb669
app/vlinsert: follow-up for d570763c91
- Switch from summary to histogram for vl_http_request_duration_seconds metric.
  This allows calculating request duration quantiles across multiple hosts
  via histogram_quantile(0.99, sum(vl_http_request_duration_seconds_bucket) by (vmrange)).
- Take into account only successfully processed data ingestion requests
  when updating vl_http_request_duration_seconds histogram.
  Failed requests are ignored, since they may significantly skew measurements.
- Clarify the description of the change at docs/VictoriaLogs/CHANGELOG.md.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/4934
2023-09-19 00:02:43 +02:00

58 lines
1.5 KiB
Go

package loki
import (
"net/http"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vlinsert/insertutils"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/logstorage"
)
// RequestHandler processes Loki insert requests
func RequestHandler(path string, w http.ResponseWriter, r *http.Request) bool {
switch path {
case "/api/v1/push":
return handleInsert(r, w)
case "/ready":
// See https://grafana.com/docs/loki/latest/api/#identify-ready-loki-instance
w.WriteHeader(http.StatusOK)
w.Write([]byte("ready"))
return true
default:
return false
}
}
// See https://grafana.com/docs/loki/latest/api/#push-log-entries-to-loki
func handleInsert(r *http.Request, w http.ResponseWriter) bool {
contentType := r.Header.Get("Content-Type")
switch contentType {
case "application/json":
return handleJSON(r, w)
default:
// Protobuf request body should be handled by default according to https://grafana.com/docs/loki/latest/api/#push-log-entries-to-loki
return handleProtobuf(r, w)
}
}
func getCommonParams(r *http.Request) (*insertutils.CommonParams, error) {
cp, err := insertutils.GetCommonParams(r)
if err != nil {
return nil, err
}
// If parsed tenant is (0,0) it is likely to be default tenant
// Try parsing tenant from Loki headers
if cp.TenantID.AccountID == 0 && cp.TenantID.ProjectID == 0 {
org := r.Header.Get("X-Scope-OrgID")
if org != "" {
tenantID, err := logstorage.GetTenantIDFromString(org)
if err != nil {
return nil, err
}
cp.TenantID = tenantID
}
}
return cp, nil
}