Zhen Ye a2ce70d252
fix: ddl framework bug patch (#45290)
issue: #45080, #45274, #45285

- LoadCollection doesn't ignore the ignorable request, for false field
array.
- CreatIndex doesn't ignore the ignorable request, for wrong index.
- index meta is not thread safe.
- lost parameter check of DDL.
- DDL Ack scheduler may get stuck and DDL is block until next incoming
DDL.
- lost parameter checker of ddl

---------

Signed-off-by: chyezh <chyezh@outlook.com>
2025-11-04 22:25:33 +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.