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