# ideawu/ssdb

SSDB - A fast NoSQL database, an alternative to Redis

Repository: https://github.com/ideawu/ssdb
Canonical: https://ross.abutalabs.com/products/ssdb
Homepage: http://ssdb.io/
Language: C++
License: BSD-3-Clause
License Family: permissive
Topics: ssdb, nosql-databases, leveldb, redis, rocksdb
Last push: 2022-08-20T12:26:30+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4982, "days_push": 1474, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 8320, forks 1397 (observed 2026-08-28T04:10:20.291340+00:00)

## What it is
SSDB is a fast, Redis-compatible NoSQL key-value database written in C++ that stores data on disk using LevelDB/RocksDB-style storage. It supports key-string, key-hash, key-zset, and key-list structures with replication and client APIs in many languages.

## Use cases
- replace redis with a disk-backed key-value store
- store large datasets that don't fit in memory
- persistent queue service
- redis-compatible nosql database with master-slave replication
- fast key-value storage for hashmap and zset data

## When to choose
- your dataset exceeds available RAM but you need Redis-like API and performance
- you need persistent key-value, hash, zset, or list storage with replication

## When to avoid
- you need a fully in-memory cache with sub-millisecond latency
- you need a rich query language or SQL joins
- you require active community development - the project's latest release is from 2022

## Facets
- artifact type: application
- maturity: maintenance
- function: database, caching, message-queue
- domain: databases, backend
- platform: windows, bsd, cpp
- tags: key-value, leveldb, redis-compatible, nosql, persistent-storage, replication, linux, macos

## Member repositories
- ideawu/ssdb (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:20.291340+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:27:54.319047+00:00, confidence not recorded.
  - readme: https://github.com/ideawu/ssdb (fetched 2026-08-28T04:10:20.291340+00:00, sha 826542b8c6a4)
  - homepage: http://ssdb.io/ (fetched 2026-08-29T08:27:45.679924+00:00, sha 6d2264393876)
  - site_page: https://ssdb.io/about (fetched 2026-08-29T08:27:45.689199+00:00, sha b06c48149419)
  - site_page: https://ssdb.io/category/general-features (fetched 2026-08-29T08:27:45.691675+00:00, sha a7d103d282b8)
  - site_page: https://ssdb.io/category/about-blog (fetched 2026-08-29T08:27:45.693470+00:00, sha 82532af37c25)
- Data as of 2026-08-30T08:39:29.467469+00:00.