## Kubernetes v1.37: etcd RangeStream Cuts Memory Use on Large List Reads

- 種別: release
- 関連技術: kubernetes
- 公開日時: 2026-09-01T18:30:00.000Z
- 情報源: Kubernetes Blog (https://kubernetes.io/blog/2026/09/01/kubernetes-v1-37-etcd-range-stream/)
- パーマリンク: https://vulnpulse.app/items/kubernetes-4db858081023

I am excited to announce that etcd RangeStream is graduating to beta in Kubernetes v1.37. Paired with etcd v3.7, it reduces the memory the API server and etcd need to read a large collection, and makes peak usage more predictable. The cost of large reads The API server serves most list and watch requests from its in-memory watch cache. Populating that cache requires reading a resource's full state from etcd, at startup and on every re-initialization. For a resource with many objects, or large ones, such as Pods, that read is expensive. The API server already paginated these reads, asking etcd…