a circular space or ring. The ring is divided up into ranges equal to the number of nodes, with each node being responsible for one or more ranges of the overall data. Before a node can join the ring, About Data Partitioning in Cassandra 10 If you do not calculate partitioner tokens so that the data ranges are evenly distributed for each data center, you could end up with uneven data distribution within balance the cluster. An ordered partitioner requires administrators to manually calculate token ranges based on their estimates of the row key distribution. In practice, this requires actively moving