yah01 773080df24
Fix miss to handle the error of allocating ts (#27264)
Signed-off-by: yah01 <yah2er0ne@outlook.com>
2023-09-20 18:43:23 +08:00
..
2023-06-26 17:52:44 +08:00
2023-09-12 21:07:19 +08:00
2021-11-16 15:41:11 +08:00
2023-09-08 10:03:16 +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.