Azure Monitor scaler reports no timeseries as errors

[MO2k4]

Hi 🤞

i can see many errors in my keda logs regarding the azure monitor scaler if there is no data available.

{
   "type": "ScaledObject",
   "namespace": "default", 
   "name": "service-api-http", 
   "error": "error getting azure monitor metric requests/rate: got metric result for Microsoft.Insights/requests/rate and aggregate type AVERAGE without timeseries"
}

Is there a way around this error or is this something i have to live with? i thought it might be related to this issue #699

my configuration for the scaledObject looks like this

- type: azure-monitor
  metadata:
    resourceURI: Microsoft.Insights/components/{{ .Values.Scale.componentName }}
    tenantId: {{ .Values.Scale.tenantId }}
    subscriptionId: {{ .Values.Scale.subscriptionId }}
    resourceGroupName: {{ .Values.Scale.resourceGroupName }}
    metricName: requests/rate
    metricFilter: cloud/roleName eq '{{ .Values.Scale.roleName }}'
    metricAggregationType: Average
    metricAggregationInterval: "0:1:0"
    targetValue: "4"
  authenticationRef:
    name: azure-monitor-trigger-auth

[MO2k4]

@tomkerkhove sorry for tagging you directly, but we hit this again and my question would be, why there is an error thrown in the azure monitor scaler if there are no timeseries, instead of handling this as no metric found (e.g. handling this as zero). We are encountering this for requests metric and we have a lot of apis where there is no traffic and then this spams the api server and the operator metrics api server with error tracking

is there a way around this?