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e9ab73e93d
issue: #43072, #43289 - manage the schema version at recovery storage. - update the schema when creating collection or alter schema. - get schema at write buffer based on version. - recover the schema when upgrading from 2.5. --------- Signed-off-by: chyezh <chyezh@outlook.com>
Data Node
DataNode is the component to write insert and delete messages into persistent blob storage, for example MinIO or S3.
Dependency
- KV store: a kv store that persists messages into blob storage.
- Message stream: receive messages and publish information
- Root Coordinator: get the latest unique IDs.
- Data Coordinator: get the flush information and which message stream to subscribe.