Keda ScaledObject not able to connect to artemis queue

[modishivang]

I am using Keda version 2.15 and Kubernetes 1.28

Getting below error

Warning KEDAScalerFailed 46s (x6 over 3m16s) keda-operator Get "http://queue-a:8161/console/jolokia/read/org.apache.activemq.artemis:broker=%220.0.0.0%22,component=addresses,address=%22provAPISANDBOXTestConfigin%22,subcomponent=queues,routing-type=%22anycast%22,queue=%22provAPISANDBOXTestConfigin%22/MessageCount": dial tcp: lookup queue-a on 172.20.0.10:53: no such host

If I exec into queue pod, do curl above command, it works successfully.

Here is my keda scaledobject yaml

apiVersion: keda.sh/v1alpha1
kind: ScaledObject
metadata:
  name: provweb-scaledobject
  namespace: ce-0fda256a-ba0d-4769-9a8e-ac05c2c5eead
spec:
  scaleTargetRef:
    name: provweb-a
  minReplicaCount: 2
  maxReplicaCount: 10
  triggers:
  - type: artemis-queue
    metadata:
      managementEndpoint: "queue-a:8161"
      queueName: "provAPISANDBOXTestConfigin"
      brokerName: "0.0.0.0"
      brokerAddress: "provAPISANDBOXTestConfigin"
      queueLength: '10'
      activationQueueLength: '0'
      username: ''
      password: ''

Please suggest if I missed anything here.

[modishivang]

Here are the logs of keda-operator pod

2024-09-12T13:23:56Z ERROR artemis_queue_scaler Unable to access the artemis management endpoint {"type": "ScaledObject", "namespace": "ce-0fda256a-ba0d-4769-9a8e-ac05c2c5eead", "name": "provweb-scaledobject", "managementEndpoint": "queue-a:8161", "error": "Get "http://queue-a:8161/console/jolokia/read/org.apache.activemq.artemis:broker=%220.0.0.0%22,component=addresses,address=%22provAPISANDBOXTestConfigin%22,subcomponent=queues,routing-type=%22anycast%22,queue=%22provAPISANDBOXTestConfigin%22/MessageCount\": dial tcp: lookup queue-a on 172.20.0.10:53: no such host"}
github.com/kedacore/keda/v2/pkg/scalers.(*artemisScaler).GetMetricsAndActivity
/workspace/pkg/scalers/artemis_scaler.go:213
github.com/kedacore/keda/v2/pkg/scaling/cache.(*ScalersCache).GetMetricsAndActivityForScaler
/workspace/pkg/scaling/cache/scalers_cache.go:130
github.com/kedacore/keda/v2/pkg/scaling.(*scaleHandler).GetScaledObjectMetrics.func1
/workspace/pkg/scaling/scale_handler.go:524
2024-09-12T13:23:56Z ERROR artemis_queue_scaler Unable to access the artemis management endpoint {"type": "ScaledObject", "namespace": "ce-0fda256a-ba0d-4769-9a8e-ac05c2c5eead", "name": "provweb-scaledobject", "managementEndpoint": "queue-a:8161", "error": "Get "http://queue-a:8161/console/jolokia/read/org.apache.activemq.artemis:broker=%220.0.0.0%22,component=addresses,address=%22provAPISANDBOXTestConfigin%22,subcomponent=queues,routing-type=%22anycast%22,queue=%22provAPISANDBOXTestConfigin%22/MessageCount\": dial tcp: lookup queue-a on 172.20.0.10:53: no such host"}
github.com/kedacore/keda/v2/pkg/scalers.(*artemisScaler).GetMetricsAndActivity
/workspace/pkg/scalers/artemis_scaler.go:213
github.com/kedacore/keda/v2/pkg/scaling/cache.(*ScalersCache).GetMetricsAndActivityForScaler
/workspace/pkg/scaling/cache/scalers_cache.go:140
github.com/kedacore/keda/v2/pkg/scaling.(*scaleHandler).GetScaledObjectMetrics.func1
/workspace/pkg/scaling/scale_handler.go:524
2024-09-12T13:23:56Z ERROR scale_handler error getting metric for trigger {"scaledObject.Namespace": "ce-0fda256a-ba0d-4769-9a8e-ac05c2c5eead", "scaledObject.Name": "provweb-scaledobject", "trigger": "artemisScaler", "error": "Get "http://queue-a:8161/console/jolokia/read/org.apache.activemq.artemis:broker=%220.0.0.0%22,component=addresses,address=%22provAPISANDBOXTestConfigin%22,subcomponent=queues,routing-type=%22anycast%22,queue=%22provAPISANDBOXTestConfigin%22/MessageCount\": dial tcp: lookup queue-a on 172.20.0.10:53: no such host"}
github.com/kedacore/keda/v2/pkg/scaling.(*scaleHandler).GetScaledObjectMetrics
/workspace/pkg/scaling/scale_handler.go:553
github.com/kedacore/keda/v2/pkg/metricsservice.(*GrpcServer).GetMetrics
/workspace/pkg/metricsservice/server.go:48
github.com/kedacore/keda/v2/pkg/metricsservice/api._MetricsService_GetMetrics_Handler.func1
/workspace/pkg/metricsservice/api/metrics_grpc.pb.go:106
github.com/kedacore/keda/v2/pkg/metricsservice.(*GrpcServer).Start.(*ServerMetrics).UnaryServerInterceptor.UnaryServerInterceptor.func6
/workspace/vendor/github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/server.go:22
github.com/kedacore/keda/v2/pkg/metricsservice/api._MetricsService_GetMetrics_Handler
/workspace/pkg/metricsservice/api/metrics_grpc.pb.go:108
google.golang.org/grpc.(*Server).processUnaryRPC
/workspace/vendor/google.golang.org/grpc/server.go:1369
google.golang.org/grpc.(*Server).handleStream
/workspace/vendor/google.golang.org/grpc/server.go:1780
google.golang.org/grpc.(*Server).serveStreams.func2.1
/workspace/vendor/google.golang.org/grpc/server.go:1019

[amitherlekar]

1. managementEndpoint: "queue-a:8161" is incorrect. It should be the activemq-artemis service endpoint on your K8s cluster, something like: activemq-svc.default.svc.cluster.local:8161.
2. The brokerName is incorrect. It should be the name of broker configured in activemq artemis.
3. Generally, in activemq artemis, the broker address and the queueName is the same. You need to fix that also.

Refer to the KEDA documentation here: https://keda.sh/docs/2.15/scalers/artemis/