chyezh 1cff55381d
enhance: add manual alloc segment rpc for datacoord (#35002)
issue: #33285

- segment allocation will move to streamingnode, so a manual alloc
segment rpc is required

Signed-off-by: chyezh <chyezh@outlook.com>
2024-07-26 10:15:46 +08:00
..
2023-09-21 09:45:27 +08:00
2023-09-21 09:45:27 +08:00
2023-09-26 17:15:27 +08:00
2021-11-16 15:41:11 +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.