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add compaction tests and fix bugs in compaction

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Signed-off-by: Alex Chi <iskyzh@gmail.com>
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Alex Chi
2024-01-25 15:25:23 +08:00
parent 971d0b1c81
commit 8dbaf54e38
23 changed files with 379 additions and 42 deletions
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mini-lsm-book/src/week2-03-tiered.md
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@@ -9,6 +9,13 @@ In this chapter, you will:
The tiered compaction we talk about in this chapter is the same as RocksDB's universal compaction. We will use these two terminologies interchangeably.
To copy the test cases into the starter code and run them,
```
cargo x copy-test --week 2 --day 3
cargo x scheck
```
## Task 1: Universal Compaction
In this chapter, you will implement RocksDB's universal compaction, which is of the tiered compaction family compaction strategies. Similar to the simple leveled compaction strategy, we only use number of files as the indicator in this compaction strategy. And when we trigger the compaction jobs, we always include a full sorted run (tier) in the compaction job.