Keep it simple. Something like "Cassandra is a row-oriented, fully distributed database designed for scalability, availability, and durability."
Trying to explain the data model in two sentences is not going to work, and "4 or 5 dimension associated arrays" is the wrong tree to bark up entirely. ("row-oriented" is the right one. :) On Thu, Jul 15, 2010 at 6:26 PM, Karoly Negyesi <chx1...@gmail.com> wrote: > Hi, > > I am writing a scalability chapter in a book and I need to mention > Apache Cassandra although it's just a mention. Still I would not like > to be sloppy and would like to get verification whether my summary is > accurate. "Cassandra stores four or five dimension associated arrays. > The first dimension is fixed on creation of the database but the rest > can be infinitely large. Inserts are super fast and can happen to any > database server in the cluster. However, the system is append only > there so there is no in-place update operation like increment. Also > sorting happens on insert time." > > Thanks > > Karoly Negyesi > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com