KubeHpaReplicasMismatch #
Meaning #
Horizontal Pod Autoscaler has not matched the desired number of replicas for longer than 15 minutes.
Impact #
HPA was unable to schedule desired number of pods.
Diagnosis #
Check why HPA was unable to scale:
- not enough nodes in the cluster
- hitting resource quotas in the cluster
- pods evicted due to pod priority
Mitigation #
In case of cluster-autoscaler you may need to set up preemtive pod pools to ensure nodes are created on time.