HTTPScaleObject does not scale deployment

[jhuynh08]

Hi guys,

I deployed the http add on but I can't seem to get the deployment to scale using the httpscaledobject.

I notice I see these errors in the http external scaler:

{"level":"error","ts":1666130828.3904934,"logger":"IsActive","caller":"scaler/handlers.go:75","msg":"Given host was not found in queue count map","host":"example.com","allCounts":{"10.0.70.28:8080":0,"localhost:53116":0,"localhost:8080":0},"error":"host 'example.com' not found in counts","stacktrace":"main.(*impl).IsActive\n\t/go/src/github.com/kedacore/http-add-on/scaler/handlers.go:75\nmain.(*impl).StreamIsActive\n\t/go/src/github.com/kedacore/http-add-on/scaler/handlers.go:98\ngithub.com/kedacore/http-add-on/proto._ExternalScaler_StreamIsActive_Handler\n\t/go/src/github.com/kedacore/http-add-on/proto/scaler_grpc.pb.go:156\ngoogle.golang.org/grpc.(*Server).processStreamingRPC\n\t/go/pkg/mod/google.golang.org/[email protected]/server.go:1540\ngoogle.golang.org/grpc.(*Server).handleStream\n\t/go/pkg/mod/google.golang.org/[email protected]/server.go:1620\ngoogle.golang.org/grpc.(*Server).serveStreams.func1.2\n\t/go/pkg/mod/google.golang.org/[email protected]/server.go:921"}
{"level":"error","ts":1666130828.39057,"caller":"scaler/handlers.go:100","msg":"error getting active status in stream, continuing","error":"host 'example.com' not found in counts","stacktrace":"main.(*impl).StreamIsActive\n\t/go/src/github.com/kedacore/http-add-on/scaler/handlers.go:100\ngithub.com/kedacore/http-add-on/proto._ExternalScaler_StreamIsActive_Handler\n\t/go/src/github.com/kedacore/http-add-on/proto/scaler_grpc.pb.go:156\ngoogle.golang.org/grpc.(*Server).processStreamingRPC\n\t/go/pkg/mod/google.golang.org/[email protected]/server.go:1540\ngoogle.golang.org/grpc.(*Server).handleStream\n\t/go/pkg/mod/google.golang.org/[email protected]/server.go:1620\ngoogle.golang.org/grpc.(*Server).serveStreams.func1.2\n\t/go/pkg/mod/google.golang.org/[email protected]/server.go:921"}

and this error in the http controller:

1.6661308399997215e+09	ERROR	controllers.HTTPScaledObject.addAndUpdateRoutingTable	could not add host to routing table, progressing anyway	{"reconciler.appObjects": "addObjects", "HTTPScaledObject.name": "ques-grab-scale", "HTTPScaledObject.namespace": "services", "host": "example.com", "error": "host example.com is already registered in the routing table"}

I have this deployed behind an ingress controller. I have already pointed the ingress route to point to keda-add-ons-http-interceptor-proxy but I still get a 503 error.

[tomkerkhove]

It looks like the host name was not found; what is your httpscaledobject?

[jhuynh08]

Please see below.

apiVersion: http.keda.sh/v1alpha1
kind: HTTPScaledObject
metadata:
  name: ques-grab-scale
  namespace: services
spec:
  host: ques-grab.v1.gexapi.com
  targetPendingRequests: 100
  scaleTargetRef:
    deployment: "ques-grab"
    service: "ques-grab"
    port: 80
  replicas:
    min: 0
    max: 2

I was able to get it to scale but it required keda to be installed in the same namespace as the application I'm scaling with which was odd since I deployed keda globally.

[tomkerkhove]

That's odd; can you open a bug please? (if none already exists)