2021-09-17 15:57:55 +00:00
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# 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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2021-10-15 10:58:37 +00:00
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- KV store: a kv store has all the meta info datacoord needs to operate. (etcd)
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2021-09-17 15:57:55 +00:00
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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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