cai.zhang 95148866ed
fix: Don't remove growing L0 segment in datanode metacache (#33829)
issue: #33540 
1. gorwing L0 segments is invisible to datacoord.
2. flushed L0 segments need to clean by datacoord.

Signed-off-by: Cai Zhang <cai.zhang@zilliz.com>
2024-06-17 10:09:57 +08:00
..
2023-09-21 09:45:27 +08:00
2023-09-21 09:45:27 +08:00
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2023-09-21 09:45:27 +08:00
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2024-06-10 21:34:08 +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.