yihao.dai 5b78ef0a49
fix: Fix delete data loss due to duplicate binlogID (#40960)
With concurrenct L0 compaction
(https://github.com/milvus-io/milvus/pull/36816), delta logs might be
written to the same L1 segment, causing logID duplication when using the
incremental beginLogID. This PR removes the beginLogID mechanism and
instead passes a log ID range, where the number of IDs in the range
equals the number of compaction segment binlogs multiplied by an
expansion factor.

issue: https://github.com/milvus-io/milvus/issues/40207

---------

Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
2025-04-01 10:36:22 +08:00
..
2023-09-21 09:45:27 +08:00
2023-09-26 17:15:27 +08:00
2021-11-16 15:41:11 +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.