kubernetes - Kubernetes-HPA不会自动缩放Pod

Question

我正在部署使用节点构建的微服务应用程序。
问题
当我使用 Jmeter 加载时， pods 不会自动缩放。 CPU实用性变为 50m ，它不会调用HPA开始自动缩放。我希望它在达到CPU请求的80％(即10m)后立即开始复制。

HPA config :

# apiVersion: autoscaling/v1 
apiVersion: autoscaling/v2beta2
kind: HorizontalPodAutoscaler 
metadata: 
  name: client-hpa 
  namespace: default 
spec: 
  minReplicas: 1
  maxReplicas: 4  
  metrics:
    - type: Resource
      resource:
        name: cpu
        target:
          type: Utilization
          averageUtilization: 80
  scaleTargetRef: 
    # apiVersion: apps/v1beta1
    apiVersion: apps/v1
    kind: Deployment 
    name: client-depl

Deployment config :

apiVersion: apps/v1
kind: Deployment 
metadata: 
    name: client-depl 
spec: 
    replicas: 1
    selector: 
        matchLabels: 
            app: client 
    template: 
        metadata:
            labels: 
                app: client 
        spec: 
            containers: 
                - name: client 
                  image: <docker-id>/<image-name>
                  resources: 
                    requests: 
                        memory: 350Mi
                        cpu: 10m    ### I want it to autoscale when it reaches 8m ###

另外， kubectl get hpa显示以下输出:

$ kubectl get hpa
NAME         REFERENCE                TARGETS         MINPODS   MAXPODS   REPLICAS   AGE
client-hpa   Deployment/client-depl   <unknown>/80%   1         4         1          8m32s

Answer 1

HPA基于以下公式
desiredReplicas = ceil[currentReplicas * ( currentMetricValue / desiredMetricValue )]
如您所见，方程式基于当前cpu利用率，而不是基于CPU请求。 (我希望它达到8m时自动缩放)。
也就是说，您可能感兴趣以下内容:
Vertical Pod Autoscaling