Vector Database High Availability: How to Build a Milvus Standby Cluster with CDC
Mar 26, 2026Cal Huang
Summary
Introduces and details Milvus's Change Data Capture (CDC) feature for building a standby cluster, enabling cluster-level high availability. Explains the layered HA strategy (node-level, cluster-level CDC, backup) and provides a hands-on tutorial for setting up primary-standby replication using Milvus CDC and Woodpecker WAL, addressing the critical need for disaster recovery in vector databases.
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