Fatal internal error in ObSingleMerge::inner_get_next_row during index lookup (errcode -4377)
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dima
type: task
- Dominant language
- C++
- Stars
- 2.9k
- Forks
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- Avg merge
- 1d 19h
- Merged PRs (30d)
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Description
Environment
- Version: observer (OceanBase 4.5.1.0)
- Revision: 1-96c6dd0fa22085b5a58f04a05b65ae63eb48efbe
- Build Branch: master
- Build Time: Dec 12 2025 19:54:52
- Build Flags: RelWithDebInfo
- Build Info: obbuild-release...
Description
A fatal internal error (errcode -4377) occurs in the ObSingleMerge::inner_get_next_row function during an index lookup operation. The issue is reported to affect master branches prior to version 4_4_1_0_100020022025102321_patches.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by tracing the failure reported in ObSingleMerge::inner_get_next_row during an index lookup, using the stated OceanBase 4.5.1.0 revision as the reproduction context. Confirm the errcode -4377 on an affected branch and narrow the cause before defining a regression test; done means the fatal error no longer occurs and coverage verifies the index lookup path.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- databases
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100