The HPA was unable to compute the replica count: missing request for cpu on container

Solution Verified - Updated -

Issue

  • After configuring the autoscaling for CPU (through oc autoscale command) the pods are not getting autoscaled
  • The metrics-server is installed and running but, even this way, the HPA is not working in OCP 3.11 or OCP 4.x
  • The events of the hpa show:
  ScalingActive  False   FailedGetResourceMetric  the HPA was unable to compute the replica count: missing request for cpu on container <container> in pod <pod>

Environment

  • Red Hat OpenShift Container Platform
    • 3.11
    • 4.x

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