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dragonfly

Caching

An in‑memory data store fully compatible with Redis and Memcached APIs that delivers up to 25× higher throughput while using far fewer resources.

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C++ Latest v1.38.1 · 1mo ago Security brief →

Features

  • Full compatibility with Redis and Memcached client APIs (no code changes required)
  • Achieves up to 25× higher throughput than legacy stores on the same hardware
  • Lower tail latency (99th‑percentile < 1 ms) with high cache hit rates
  • Runs efficiently on as little as 20 % of the resources needed by Redis or Memcached

Recent releases

View all 15 releases →
v1.38.1 Bug fix

Minor fixes and improvements.

Full changelog

This is a patch release

What's Changed

  • fix(server): Re-use journal executor (#7201)
  • test(connection): add a fix for FIN_WAIT_2 leak bug with BLPOP (#7224)
  • fix: avoid O(n) scans in NotifyWatchQueue (#7225)

Full Changelog: https://github.com/dragonflydb/dragonfly/compare/v1.38.0...v1.38.1

View release on GitHub
v1.38.0 New feature
Notable features
  • 26% memory reduction for TTL workloads via CompactKey SDS_TTL_TAG
  • VECTOR_RANGE radius-based similarity search
  • FT.AGGREGATE FILTER, APPLY, DIALECT, KNN enhancements
View release on GitHub
v1.37.0 Breaking risk
Notable features
  • Vector search 40% memory reduction with hash maps
  • SORT command with BY and GET options
  • DIGEST and DELEX commands
View release on GitHub
v1.36.0 New feature
Notable features
  • Global HNSW vector index support
  • Unicode tag support
  • JSON object defragmentation improvements
View release on GitHub

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Alternative to

Redis Memcached

Beta — feedback welcome: [email protected]