XuanYang-cn 48b45d82e5
Add ut for binlog_io to 100 coverage (#12283)
Make DN ut coverage upto 90%
Resolves: #8058

Signed-off-by: yangxuan <xuan.yang@zilliz.com>
2021-11-26 17:43:17 +08:00
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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 imformation
  • Root Coordinator: get the latest unique IDs.
  • Data Coordinator: get the flush information and which message stream to subscribe.