dynamo
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Over the last couple years, we see an emerging data storage mechanism for storing large scale of data. These storage solution differs quite significantly with the RDBMS model and is also known as the NOSQL.
NOSQL Patterns
Recently, there has been a lot of chitchat about the eventual consistency model as illustrated in the famous Amazon Dynamo paper , and today employed by several non-relational databases such as Voldemort or Cassandra. Everything starts with this blog post by the Facebook Infrastructure Lead, claiming: "Dynamo: A flawed architecture" , where he makes a few points against the eventual consistency model and the related "sloppy" quorum approach.
eventual consistency
cassandra
For the last month or two the Digg engineering team has spent quite a bit of time looking into, playing with and finally deploying Cassandra in production.