Queue inspection

The interceptor exposes a /queue endpoint on its admin service (port 9090 by default) that returns the current pending request counts per route as JSON.

kubectl port-forward -n keda svc/keda-add-ons-http-interceptor-admin 9090

curl -X GET localhost:9090/queue

The response is a JSON object keyed by namespace/route-name, with concurrency and request count for each route:

{
  "default/my-app": { "Concurrency": 3, "RequestCount": 42 },
  "demo/sample-app": { "Concurrency": 0, "RequestCount": 0 }
}

The endpoint shows raw counts from the interceptor. Request rate (RPS) is calculated by the scaler component based on these counts and the configured window — it is not part of this response.

Profiling

Enable pprof profiling on the interceptor or scaler by setting the PROFILING_BIND_ADDRESS environment variable:

helm upgrade http-add-on kedacore/keda-add-ons-http \
  --namespace keda \
  --set interceptor.extraEnvs.PROFILING_BIND_ADDRESS=0.0.0.0:6060

For the operator, use the --profiling-bind-address flag instead:

helm upgrade http-add-on kedacore/keda-add-ons-http \
  --namespace keda \
  --set operator.extraArgs.profiling-bind-address=:6060

Once enabled, collect profiles with go tool pprof:

kubectl port-forward -n keda deploy/keda-add-ons-http-interceptor 6060
go tool pprof -http=:8080 http://localhost:6060/debug/pprof/heap

Getting Help

If you cannot resolve the issue, the following channels are available:

• Kubernetes Slack — #keda channel (join here)
• GitHub Issues — Bug reports and feature requests
• GitHub Discussions — Questions and general conversation

What’s Next

• Configure the Interceptor — Timeouts, connection tuning, and scaling.
• Environment Variables Reference — all environment variables for each component.
• Metrics Reference — Prometheus metric definitions for monitoring.