# OpenAtomFoundation/pikiwidb

Pikiwidb is a Redis-Compatible database developed by Qihoo's infrastructure team.

Repository: https://github.com/OpenAtomFoundation/pikiwidb
Canonical: https://ross.abutalabs.com/products/pikiwidb
Language: C++
License: BSD-3-Clause
License Family: permissive
Topics: redis-interfaces, redis, nosql, nosql-databases, nosql-data-storage, rocksdb, pikiwidb
Last push: 2026-08-21T06:07:31+00:00

## Health v2 (maintenance only)
Score: 91/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 77, longevity 100
- inputs: {"age_days": 4321, "days_push": 12, "days_rel": 76, "gap_med": 90.0, "n_releases_24m": 9}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6123, forks 1168 (observed 2026-08-28T04:09:36.201355+00:00)

## What it is
PikiwiDB (Pika) is a Redis-compatible, persistent key-value database built on RocksDB, developed by Qihoo's infrastructure team. It speaks the Redis protocol and data structures while removing Redis's memory-capacity limits, supporting master-slave replication and Codis-based clustering.

## Use cases
- store more data than fits in Redis memory
- replace Redis for datasets over 16GiB
- run a persistent Redis-compatible KV store
- migrate from Redis without changing clients
- set up master-slave replication with full and incremental sync
- scale a Redis-like store horizontally with Codis

## When to choose
- your Redis dataset exceeds memory capacity or costs too much in RAM
- you need Redis protocol compatibility with disk-backed persistence
- long startup recovery times of in-memory Redis are a problem

## When to avoid
- you need ultra-low-latency pure in-memory caching
- you rely on Redis features PikiwiDB does not implement
- you want a fully managed cloud database

## Facets
- artifact type: service
- maturity: active
- function: database, caching, serialization
- domain: databases, backend, big-data
- platform: cpp, self-hosted
- tags: redis-compatible, rocksdb, key-value-store, nosql, persistent-kv, master-slave-replication, linux

## Member repositories
- OpenAtomFoundation/pikiwidb (main) score 91

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:36.201355+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 2026-08-29T17:47:59.807073+00:00, confidence not recorded.
  - readme: https://github.com/OpenAtomFoundation/pikiwidb (fetched 2026-08-28T04:09:36.201355+00:00, sha 36a8d7030d0c)
- Data as of 2026-08-30T08:39:29.467469+00:00.