jaime d8ca56e084
Fix empty segment handoff fails (#20073)
Signed-off-by: yun.zhang <yun.zhang@zilliz.com>

Signed-off-by: yun.zhang <yun.zhang@zilliz.com>
2022-10-26 16:49:31 +08:00
..
2022-10-21 15:57:28 +08:00
2022-10-25 19:31:30 +08:00
2022-10-25 19:31:30 +08:00
2021-11-16 15:41:11 +08:00
2022-10-25 19:31:30 +08:00
2022-10-21 15:57:28 +08:00
2022-10-25 19:31:30 +08:00

Data Coordinator

Data cooridnator(datacoord for short) is the component to organize DataNodes and segments allocations.

Dependency

  • KV store: a kv store has all the meta info datacoord needs to operate. (etcd)
  • Message stream: a message stream to communicate statistics information with data nodes. (Pulsar)
  • Root Coordinator: timestamp, id and meta source.
  • Data Node(s): could be an instance or a cluster, actual worker group handles data modification operations.