High Performance Scalable Data Stores

Rick Catell has written a paper that I think is a very good comparison of the various NoSQL data stores. In it he discusses the various types of data stores available, i.e. key-value, document and column. For each data store he provides a description of the various implementations available, such as, Voldemort, Redis and Scalaris.

Data stores discussed in the paper:

Key/Value: Voldemort, Riak, Redis, Scalaris, Tokyo Tyrant and Enhanced Memcached
Document: SimpleDB,  CouchDB and MongoDB
Column: HBase, HyperTable and Cassandra

At a minimum the paper allows the reader to get a basic understanding of each data store.

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