MachineSet not in desired state after increasing minReplicas in MachineAutoscaler on OpenShift Container Platform 4

Solution Verified - Updated -

Issue

  • When Autoscaler minReplicas are increased from 3 to 6, corresponding MachineSet desired replicas are not increase from 3 to 6. It requires to manually update the MachineSet desired replica to 6 in order to increase number of nodes.
  • Why is the number of replicas for MachineSet not increased to the value set via minReplicas in MachineAutoscaler?

Environment

  • Red Hat OpenShift Container Platform (RHOCP) 4

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