That pattern is discussed here http://ria101.wordpress.com/2010/02/22/cassandra-randompartitioner-vs-orderpreservingpartitioner/
It's also used in http://github.com/tjake/Lucandra
You can do range queries with the Random Partitioner in 0.6.*, the order of the return is undefined and it's a bit slower.
I think it's normally used when you want ordered range queries in some CF's and random distribution in others.
On 07 Jul, 2010,at 09:47 PM, David Boxenhorn <firstname.lastname@example.org> wrote:
Is there any strategy for using OPP with a hash algorithm on the client side to get both uniform distribution of data in the cluster *and* the ability to do range queries?
I'm thinking of something like this:
cassKey = (key % 97) + "@" + key;
cassRange = 0 + "@" + range; 1 + "@" + range; ... 96 + "@" + range;
Would something like that work?