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11 lines
478 B
Markdown
11 lines
478 B
Markdown
# Data Coordinator
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Data cooridnator(datacoord for short) is the component to organize DataNodes and segments allocations.
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## Dependency
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- KV store: a kv store has all the meta info datacoord needs to operate. (ETCD)
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- Message stream: a message stream to communicate statistics information with data nodes. (Pulsar)
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- Root Coordinator: timestamp, id and meta source.
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- Data Node(s): could be an instance or a cluster, actual worker group handles data modification operations.
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