[Leveldb Compact] output file should dump to lower level
Open
stat/will-see-later
- Dominant language
- C++
- Stars
- 1.9k
- Forks
- 432
- PR merge metrics
- No merged PRs in 30d
Description
level多了会导致删除标记清理不及时，当一次偶然将数据写多了之后，level会增加，即使数据全删，level也不会下降
通过这样的方式可以让level降下去
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Research direction
The issue does not name files or tests. Start by locating the Leveldb Compact implementation and trace where its output file is assigned a level; reproduce the case where deleted data leaves too many levels, then verify that compaction places output at a lower level and the level count decreases.
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