Kubernetes - HPA 指标 - 内存和 cpu 一起

Question

是否可以将“cpu”和“内存”指标保持在一起，如下所示？这似乎不起作用。我尝试将以下脚本作为 HPA。但是 pods 立即增长到了 5 个。
这不是我所期待的。

apiVersion: autoscaling/v2beta1
kind: HorizontalPodAutoscaler
metadata:
  name: myservice-metrics
  namespace: myschema
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: myservice
  minReplicas: 1
  maxReplicas: 5
  metrics:
  - type: Resource
    resource:
      name: memory
      targetAverageValue: 500Mi
  - type: Resource
    resource:
      name: cpu
      targetAverageUtilization: 70

如果我单独保存它，它不会提示。为服务设置两个指标是否是最佳实践？有没有其他方法可以设置这两个指标。

apiVersion: autoscaling/v2beta1
kind: HorizontalPodAutoscaler
metadata:
  name: myservice-metrics-memory
  namespace: myschema
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: myservice
  minReplicas: 1
  maxReplicas: 3
  metrics:
  - type: Resource
    resource:
      name: memory
      targetAverageValue: 500Mi


apiVersion: autoscaling/v2beta1
kind: HorizontalPodAutoscaler
metadata:
  name: myservice-metrics-cpu
  namespace: myschema
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: myservice
  minReplicas: 1
  maxReplicas: 3
  metrics:
  - type: Resource
    resource:
      name: cpu
      targetAverageUtilization: 70

Answer 1

从 Kubernetes v1.6 开始，添加了对基于多个指标的扩展的支持。
我建议尝试切换到 autoscaling/v2beta2 API。

https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/#support-for-multiple-metrics