Comparision of different data stores:

http://www.metabrew.com/article/anti-rdbms-a-list-of-distributed-key-value-stores/

http://opensource.plurk.com/LightCloud/

http://randomfoo.net/2009/04/20/some-notes-on-distributed-key-stores

• Redis
  • What about durability and consistency during snapshotting?
    • Is it even snapshotting?
    • If so what does it do about writes while the memory is locked?
  • Shard hash table using naive doubling strategy
    • Worth seeing how latency works out when a shard is under heavy load
    • Also, probably not a serious problem since only log requests are slow