yah01 0cfb6a85be
Make compaction not generate empty segment (#15707)
Signed-off-by: yah01 <yah2er0ne@outlook.com>
2022-02-28 10:17:54 +08:00
..
2022-02-18 18:29:50 +08:00
2021-12-20 14:36:38 +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.