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Kubernetes v1.35 introduces mutable PersistentVolume node affinity as an alpha feature, enabling more flexible online volume management.
•PV node affinity was previously immutable since v1.10; v1.35 removes this restriction behind the MutablePVNodeAffinity feature gate
•Primary use case: storage providers offering live migration from zonal to regional disks, requiring the PV topology key to change from zone to region
•Also useful when disk generations change (gen1 → gen2), ensuring new Pods are scheduled only to compatible nodes
•A known race condition exists when tightening node affinity: the scheduler cache may lag, potentially placing Pods on nodes that can no longer access the volume
•Future work aims to integrate this with VolumeAttributesClass so PVC modifications can trigger automatic PV node affinity updates without admin intervention
This summary was automatically generated by AI based on the original article and may not be fully accurate.