10.0
/ 10.0 score
6th in Databases ★ 67.0k GitHub stars
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In-memory data store used for caching, sessions, queues, and real-time features. Incredibly fast.

// pros

  • Sub-millisecond latency
  • Versatile data structures
  • Pub/sub built in
  • Great for caching

// cons

  • Data must fit in memory
  • Persistence can be tricky
  • License changes in 2024
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