cai.zhang 511265c68c
Modify lastSyncTime in advance to prevent multiple flush binlogs (#22048) (#22088)
Signed-off-by: cai.zhang <cai.zhang@zilliz.com>
2023-02-12 18:56:33 +08:00
..
2022-11-14 16:21:07 +08:00
2023-02-03 19:33:52 +08:00
2023-01-06 14:21:37 +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.