What are the frequently asked questions about ACK Serverless - Container Service for Kubernetes

This topic provides answers to some frequently asked questions about ACK Serverless clusters.

If the system returns error messages when you use ACK Serverless clusters, you can select the corresponding solutions on the Container Service for Kubernetes - Error Codes page. If you do not receive error messages, you can select solutions based on your business scenarios. The following table describes the possible scenarios.

Type	References
Authorization	FAQ about authorization management (authentication failures, RBAC authorization issues, and RAM authorization issues)
Clusters	What do I do if a timeout error occurs when I use Cloud Shell to manage a cluster?
Networks	Service FAQ Ingress FAQ
Issues related to application management	FAQ about applications
Volumes	FAQ about disks
Auto scaling	FAQ about Horizontal Pod Autoscaler (HPA) What do I do if the current field displays unknown in the HPA metrics? What do I do if excess pods are added by HPA during a rolling update? What do I do if HPA does not scale pods when the scaling threshold is reached? How do I configure the metric collection interval of HPA? Can CronHPA and HPA interact without conflicts? How do I fix the issue that excess pods are added by HPA when CPU or memory usage rapidly increases? What do I do if HPA scales out an application while the metric value in the audit log is lower than the threshold? FAQ about HPA based on Alibaba Cloud metrics What do I do if the TARGETS column displays <unknown> after I run the kubectl get hpa command? Where can I find the metrics that are supported by HPA?