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Knowledge Base & Operational DocumentationHow to Keep a Kubernetes Service Available During a Node Upgrade
11/10/2026
A node upgrade can disrupt workloads if replicas are concentrated, disruption budgets are too strict, or replacement pods cannot schedule.
What to check
Check replica placement, pod disruption budgets, resource requests, node capacity, readiness, and storage constraints. Confirm the maintenance sequence and workload criticality.
Recommended next step
Verify capacity and graceful drain behavior in a staged maintenance window. Informatix Systems can help operate Kubernetes infrastructure and plan upgrades.