Jiquan Long dc2cdbe387
enhance: add more metrics (#31271)
/kind improvement
fix: #31272 

This pr add more metrics, which are:
- Slow query count, which the duration considered as slow can be
configurable;
- Number of deleted entities;
- Number of entities imported;
- Number of entities per collection;
- Number of loaded entities per collection;
- Number of indexed entities;
- Number of indexed entities, per collection, per index and whether it's
a vetor index;
- Quota states (LongTimeTickDelay, MemoryExhuasted, DiskQuotaExhuasted)
per database;

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Signed-off-by: longjiquan <jiquan.long@zilliz.com>
2024-03-19 15:23:06 +08:00
..
2023-09-21 09:45:27 +08:00
2023-09-21 09:45:27 +08:00
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2023-09-26 17:15:27 +08:00
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2024-03-19 15:23:06 +08:00

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.