Too many delete range may cause read performance degradation
Open
Nobody has claimed this yet.
component/storage
type/enhancement
- Dominant language
- C++
- Stars
- 1k
- Forks
- 423
- Avg merge
- 1d 15h
- Merged PRs (30d)
- 24
Description
Enhancement
If delete too many ranges (such as remove empty regions), there will be many deleteRange in delta layer, which will cause read performance degradation.
Contributor guide
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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
No files or tests are named. Start by tracing how multiple deleteRange entries are created in the delta layer, especially when removing empty regions, then measure their effect on reads. Done means reducing or avoiding the read-performance degradation caused by many delete ranges, with regression coverage for the reported case.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- databases
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100