sled - embedded database

sled is an embedded database.

It’s published under an open source license.

Features include:

API similar to a threadsafe BTreeMap.
Serializable (ACID) transactions for atomically reading and writing to multiple keys in multiple
Keyspaces.
Fully atomic single-key operations, including compare and swap.
Zero-copy reads.
Write batches.
Subscribe to changes on key prefixes.
Multiple keyspaces.
Merge operators.
Forward and reverse iterators over ranges of items.
A crash-safe monotonic ID generator capable of generating 75-125 million unique ID’s per second.
zstd compression (use the compression build feature, disabled by default).
cpu-scalable lock-free implementation.
Flash-optimized log-structured storage.
Uses modern b-tree techniques such as prefix encoding and suffix truncation for reducing the
Storage costs of long keys with shared prefixes. If keys are the same length and sequential then the system can avoid storing 99%+ of the key data in most cases, essentially acting like a learned index.

Website: github.com/spacejam/sled
Support:
Developer: Tyler Neely
License: MIT License or Apache License 2.0

sled is written in Rust. Learn Rust with our recommended free books and free tutorials.

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