The evolution from the original paper to Cassandra 2.0 in an interesting format:
The release of Apache Cassandra 2.0 is a good point to look back at the past
five years of progress after Cassandra’s release as open source. Here, we
annotate the Cassandra paper from LADIS 2009 with the new features and
improvements that have been added since.
Original title and link: Facebook’s Cassandra paper, annotated and compared to Apache Cassandra 2.0 ( ©myNoSQL)