Information
Limit the rate at which the API server accepts requests.
Rationale:
Using EventRateLimit admission control enforces a limit on the number of events that the API Server will accept in a given time slice. A misbehaving workload could overwhelm and DoS the API Server, making it unavailable. This particularly applies to a multi-tenant cluster, where there might be a small percentage of misbehaving tenants which could have a significant impact on the performance of the cluster overall. Hence, it is recommended to limit the rate of events that the API server will accept.
Note: This is an Alpha feature in the Kubernetes 1.15 release.
Impact:
None, as the OpenShift kubelet has been fixed to send fewer requests.
Solution
No remediation is required.
Default Value:
By default, the OpenShift kubelet has been fixed to send fewer requests. Version 4.6+ it is enabled by default.