oceanbase / oceanbase/seekdb

Asynchronous index results are unstable; nearest vectors not retrieved immediately after refresh

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dima type: bug
Dominant language
C++
Stars
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Forks
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Avg merge
2d 14h
Merged PRs (30d)
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Description

Environment

  • Version: 5.7.25 OceanBase seekdb (r1.2.0...)
  • Connection details: mysql -h 127.1 -u root -P 31035 -A

Description

Results from the asynchronous index are unstable. When querying immediately after a refresh operation, the nearest vectors are not being retrieved.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the issue using the provided mysql connection details and focus on the asynchronous index refresh followed immediately by a nearest-vector query. Compare results across repeated refresh and query attempts; done means the nearest vectors are retrieved consistently immediately after refresh.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, mysql
Domain
databases, search
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
35/100

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