Zhen Ye 7877aaa96c
fix: dirty cp metrics after drop (#43567)
issue: #42688

- The channel cp is dropped by garbage collector
- The channel is dropped and the cp is marked as math.Uint64
- If we drop it here, the update channel checkpoints will write the
dirty cp back.

Signed-off-by: chyezh <chyezh@outlook.com>
2025-07-27 23:22:55 +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.