XuanYang-cn 4c86cc63ba
Fix DN flowgraph delete buffer logs (#18657)
1. Remove logs about not existing segments.
2. Group logs by timestamp.
3. Log changed segments only.
4. Pair the segments reference lock and unlock log by taskID.

Resolves: #18655

Signed-off-by: yangxuan <xuan.yang@zilliz.com>

Signed-off-by: yangxuan <xuan.yang@zilliz.com>
2022-08-15 16:28:48 +08:00
..
2022-04-24 22:03:44 +08:00
2022-06-29 23:26:19 +08:00
2022-07-20 17:56:30 +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.