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[skip ci] Refine milvus index design doc (#11440) 

Signed-off-by: Edward Zeng <jie.zeng@zilliz.com>
pull/11459/head
edward.zeng 2021-11-08 20:28:08 +08:00 committed by GitHub
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docs/design_docs/index_design.md
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@ -174,7 +174,7 @@ type Meta struct {
Meta is used to record the state of the index.
- Revision: The number of times IndexMeta has been changed in etcd. It's the same as Event.Kv.Version in etcd.
When IndexCoord watches the IndexMeta in etcd is changed, can compare `revision` and Event.Kv.Versionto determine
When IndexCoord watches the IndexMeta in etcd is changed, can compare `revision` and Event.Kv.Version to determine
this modification of IndexMeta is caused by IndexCoord or IndexNode. If it is caused by IndexNode, the Meta in
IndexCoord must be updated.