An Alternative Metadata System for Large Kubernetes Clusters
Talkat KubeCon + CloudNativeCon China 2025 · on Tuesday, 2025-06-10· at 11:00· Level 19 | Crystal Court II·
summary
Describes ByteDance’s design and production experience building kubebrain, an open-source alternative metadata system for Kubernetes intended to address ETCD’s production issues at very large scale. Explains Kubernetes metadata storage requirements for event-driven sync via the KubeAPIServer, why existing alternatives like kine fell short, and how kubebrain improves performance and stability in clusters with >20K nodes and ~1M pods.
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