API server is erroring for 100% of requests for client unidling-controller

Solution In Progress - Updated -

Issue

  • Receiving Alert from Prometheus (Alert Manager) as below.
Firing 
Labels
alertname = KubeAPIErrorsHigh
client = openshift/v1.11.0+d4cacc0 (linux/amd64) kubernetes/cluster/system:serviceaccount:openshift-infra:unidling-controller
cluster = $cluster
code = 500
endpoint = https
job = apiserver
namespace = default
prometheus = openshift-monitoring/k8s
resource = events
scope = cluster
service = kubernetes
severity = critical
verb = LIST
Annotations
message = API server is erroring for 100% of requests.
  • How to resolve this alert?

Environment

  • Red Hat OpenShift Container Platform
    • 3.11

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