Outage in IONOS Cloud
Managed Kubernetes: Service Degradation for Control Planes in FRA
Resolved MinorIncident Report
Summary AI Generated
IONOS Cloud experienced service degradation affecting Control Planes of some Managed Kubernetes clusters in the FRA data center for 32 hours. The issue was caused by a transient latency problem in a redundant CoreDNS pod that prevented kube-apiservers from discovering etcd instances in time. All affected Control Planes recovered and the incident was resolved, with IONOS developing better mitigation options for the excessive NXDOMAIN requests that occurred during the incident.
We are currently investigating service degradation for Control Planes of some Kubernetes clusters in the FRA DC.
Components affected
IONOS Cloud Managed KubernetesTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
25 days ago - at 04/01/2026 08:18PM
We are marking the incident as resolved, as no further anomalies were detected. The root cause was a transient latency issue in one of the redundant CoreDNS pods, which led to kube-apiservers being unable to discover etcd instances in time. We are currently developing better mitigation options for the excessive NXDOMAIN requests observed during the incident.
MONITORING
27 days ago - at 03/31/2026 01:10PM
All affected Control Planes have recovered. We are currently monitoring the affected clusters for further anomalies.
INVESTIGATING
27 days ago - at 03/31/2026 12:22PM
We are currently investigating service degradation for Control Planes of some Kubernetes clusters in the FRA DC.
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