etcd (Metadata)

Milvus uses etcd to store metadata such as collection schemas, node status, and message-consumption checkpoints.

Version

Milvus is validated against etcd 3.5.x. When you install Milvus with Helm, the bundled etcd image is milvusdb/etcd:3.5.25-r1 by default.

Change the etcd image with Helm

To pin or replace the etcd image version, override etcd.image.tag (and, if needed, etcd.image.repository) when installing or upgrading with Helm:

helm install my-release zilliztech/milvus \
  --set etcd.image.repository=milvusdb/etcd \
  --set etcd.image.tag=3.5.25-r1

For external etcd, or for detailed Docker Compose / Helm / Milvus Operator configuration, see Configure Meta Storage with Docker Compose or Helm and Configure Meta Storage with Milvus Operator.