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History

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allocator_test.go
allocator.go
channel_manager_factory.go
channel_manager_test.go
channel_manager.go
channel_store.go
cluster_test.go
cluster.go
datanode_helper.go
errors_test.go
errors.go
meta_test.go
meta.go
metrics_info_test.go
metrics_info.go
mock_test.go
OWNERS
param_table_test.go
param_table.go
policy_test.go
policy.go
README.md
segment_allocation_policy_test.go
segment_allocation_policy.go
segment_info.go
segment_manager_test.go
segment_manager.go
server_test.go
server.go
services.go
session_manager.go
session.go
util_test.go
util.go

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.