TurboKV 0.6 Released: An Async Embedded Key-Value Store for Rust

TurboKV 0.6 Release

TurboKV, an asynchronous embedded key-value database written in Rust, has been released in version 0.6. This new version introduces several core features for data management within Rust applications.

Key Features and Capabilities

The database offers atomic batches for consistent writes, ordered range scans for efficient data retrieval, and configurable durability options. It also includes built-in compression and background compaction to manage storage efficiency. TurboKV's persisted Bloom-filter format utilizes hardware AES for performance.

Implementation Details

Developers can integrate TurboKV using `cargo add turbokv` and `cargo add tokio --features full`. The database handles keys and values as arbitrary byte sequences, requiring callers to encode strings. Default configurations include a 64 MiB memtable, a 64 MiB block cache, and LZ4 compression, which can be adjusted via `DbOptions`.

Usage and Data Handling

A `Db` or `Engine` instance exclusively owns its data directory, necessitating a clean shutdown using `close()` or `close_with_status()`. Mutation APIs copy inputs before returning, and point/collecting reads return owned `Vec<u8>` values. Keys are ordered lexicographically by raw bytes, and scans capture a coherent point-in-time view.