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Bolt is a single-file embedded key-value store for Go applications. It is an ACID transactional database that organizes data in B+trees on disk to provide efficient sorted key retrieval and range scans. The system uses a memory-mapped model to map the database file directly into the process address space for fast random-access reads. The project distinguishes itself through a multi-version concurrency control architecture that allows multiple simultaneous readers to access a consistent snapshot of data without blocking a writer. It employs a single-writer multi-reader locking model and uses a
BuntDB is an embedded key-value store for Go applications, providing in-memory storage with optional disk persistence. It structures data using a B-tree for ordered key-value access and an R-tree for spatial indexing, allowing both range scans and geometric intersection queries. Support for indexing on nested JSON document fields enables efficient lookups by values within JSON objects, and per-key time-to-live (TTL) expiration automatically removes stale entries. The store uses copy-on-write transaction isolation, ensuring each transaction sees a consistent snapshot and changes are applied at
redb is an embedded key-value store and ACID-compliant storage engine. It functions as a persistent storage system for saving and retrieving data as key-value pairs within a tree structure. The engine is built as an MVCC transactional database, utilizing multi-version concurrency control to manage simultaneous reads and writes without blocking. It employs a single-writer multi-reader model to ensure data consistency while allowing multiple threads to access the store. The system provides persistent state management and atomic transaction management to prevent data corruption during crashes.
NutsDB is an ACID-compliant, embedded transactional storage engine that functions as both a disk-backed key-value store and an in-memory data structure store. It provides atomic and serializable transactions with commit and rollback capabilities to ensure strict data consistency for applications requiring a lightweight persistence layer. The engine distinguishes itself by supporting a variety of complex data types, including lists, sets, and sorted sets, alongside standard byte-slice storage. It implements a transactional storage model featuring hot backups and a compaction algorithm to maint
LMDB is an embedded key-value storage engine that provides ACID-compliant data persistence. It is a memory-mapped database that utilizes B+ trees to store key-value pairs, ensuring atomicity, consistency, isolation, and durability.
The main features of lmdb/lmdb are: Memory-Mapped Storage, Copy-on-Write Transaction Systems, Memory-Mapped File Access, Single-Writer Multi-Reader Locking, ACID-Compliant, B-Tree, B+ Tree Indexing, Embedded Key-Value Stores.
Projects with overlapping indexed features include: boltdb/bolt — Bolt is a single-file embedded key-value store for Go applications. It is an ACID transactional database that… tidwall/buntdb — BuntDB is an embedded key-value store for Go applications, providing in-memory storage with optional disk persistence.… cberner/redb — redb is an embedded key-value store and ACID-compliant storage engine. It functions as a persistent storage system for… nutsdb/nutsdb — NutsDB is an ACID-compliant, embedded transactional storage engine that functions as both a disk-backed key-value… etcd-io/bbolt — bbolt is an ACID-compliant embedded key-value store for Go applications. It persists all data in a single… jankotek/mapdb — MapDB is an embedded database engine and disk-backed collection library that stores Java collections on disk or…