From Cassandra user group meetup:
This is a two part talk in which we'll go over the architecture that enables Apache Cassandra’s linear scalability as well as how DataStax Drivers are able to take full advantage of it to provide developers with nicely designed and speedy clients extendable to the core.
In the first part of this talk, Bulat will demystify Cassandra terms like replica, coordinator, replication factor, token map, conflict resolution and consistency level. And after that, Sandeep will teach you everything there is to know about various features of the DataStax Drivers, such as asynchronous APIs, futures, error handling, load balancing and retry policies, address resolution, schema metadata and host state listeners.