congqixia 8cf2cf5c94
enhance: Add go-deadlock as unittest only dependency (#33063)
See also #33062

This PR:

- Add `lock.RWMutex` & `lock.Mutex` alias to switch implementation based
  on build flags
- When build flags has `test` in it, use `go-deadlock` to detect
  possible deadlocks
- Replace all `sync.RWMutex` & `sync.Mutex` in datacoord pkg

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
2024-05-15 16:33:34 +08:00
..
2023-09-21 09:45:27 +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.