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Redis

redis.io

Redis is an in-memory data-structure store, which can be used as cache, queue, message broker; with configurable persistence guarantees. It is extremely elegant, performant and lightweight; which is why we are rating it as ADOPT.

Benefits

  • is very performant and lightweight
  • contains many data structures to be used as building blocks for caching, queuing, distributed locking and coordination, ...
  • can be set up with replication and failover
  • is single threaded; thus easy to reason about
  • can be scripted with Lua scripts
  • will soon support streams, so it can be used as temporary log.

Drawbacks

  • single threaded; so if you write long Lua scripts, the server cannot answer other requests at the same time.
  • the full data set has to fit in memory