rocksdb
https://github.com/facebook/rocksdb
C++
A library that provides an embeddable, persistent key-value store for fast storage.
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- Issues
- Add bounded fanout slack for dynamic leveled compaction
- Make MemPurge preserve read ordering and sampling safety
- 1/11: Finalize blob metadata outside DB mutex
- Make BDW compaction fallback column-family aware
- db_impl: guard stats history delta underflow on Statistics::Reset
- Flush() returns OK but writes a >= 4 GiB data block that the block reader truncates; every key in the block becomes unreadable
- WriteBatch entry count silently wraps at 2^32 (Put/Delete return OK); the batch then fails DB::Write with "Corruption: WriteBatch has wrong count" and stops the DB
- Leveled compaction: ttl greater than the current unix time underflows `current_time - ttl`, so every file is treated as TTL-expired
- TransactionDB::SetDeadlockInfoBufferSize(n) with n == current number of recorded deadlocks leaves buffer_idx_ == size(); next deadlock writes past the end of paths_buffer_
- DB::Open with a negative num_levels terminates the process (uncaught std::length_error in MutableCFOptions::RefreshDerivedOptions) instead of returning a Status
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