congqixia 6512b12fba
enhance: [cherry-pick] Make etcd kv request timeout configurable (#28661) (#28701)
Cherry-pick from master
pr: #28661
See also #28660
This pr add request timeout config item for etcd kv request timeout
 Sync the default timeout value to same value for etcdKV & tikv config

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
2023-11-24 21:16:26 +08:00
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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.