我想在GKE HPA上使用自定义日志指标。指标可以在指标资源管理器上查看,但无法在HPA上使用。我们已经安装了自定义指标适配器,并且我们能够成功地使用其他自定义指标,如kubernetes.io|pod|network|received_bytes_count进行扩展。下图显示了我要在HPA上使用的自定义指标的指标资源管理器图表
此指标是从应用程序日志创建的

在HPA yaml后面使用以使用该指标
apiVersion: autoscaling/v2beta2
kind: HorizontalPodAutoscaler
metadata:
name: "similar-products-rts-hpa"
namespace: relevancy
spec:
behavior:
scaleUp:
stabilizationWindowSeconds: 120
scaleTargetRef:
apiVersion: apps/v1
kind: Deployment
name: similar-products
minReplicas: 3
maxReplicas: 6
metrics:
- type: Pods
pods:
metric:
name: "logging.googleapis.com|user|Similar_Products(RTS)_Inbound_Request_Count"
target:
type: AverageValue
averageValue: 25请查找下面的错误
The HPA was unable to compute the replica count: unable to get metric logging.googleapis.com|user|Similar_Products(RTS)_Inbound_Request_Count: unable to fetch metrics from custom metrics API: googleapi: Error 400: The supplied filter does not specify a valid combination of metric and monitored resource descriptors. The query will not return any time series., badRequest发布于 2021-10-06 08:21:34
不幸的是,upper case letters in metric names are not supported as HPA将指标视为伪资源,这意味着它们不区分大小写。我还认为,对于指标名称,括号也是无效字符。
您是否可以将指标名称更改为小写并删除括号?也许是像similar_products_rts_inbound_request_count这样的东西
编辑:我刚刚注意到的另一个问题是,指标是一个容器指标,而不是一个pod指标。在this change之前,有必要修改自定义指标适配器部署以支持容器指标。您可以使用当前manifest更新部署,也可以通过添加--fallback-for-container-metrics=true来修改当前部署
spec:
serviceAccountName: custom-metrics-stackdriver-adapter
containers:
- image: gcr.io/gke-release/custom-metrics-stackdriver-adapter:v0.12.0-gke.0
imagePullPolicy: Always
name: pod-custom-metrics-stackdriver-adapter
command:
- /adapter
- --use-new-resource-model=true
- --fallback-for-container-metrics=true
resources:
limits:
cpu: 250m
memory: 200Mi
requests:
cpu: 250m
memory: 200Mi https://stackoverflow.com/questions/69456545
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