Hi All, I'm fairly new to Cassandra and am planning on using it as a datastore for an Apache Spark cluster.
The use case is fairly simple, read the raw data and perform aggregates and push the rolled up data back to Cassandra. The data models will use counters pretty heavily so I'd like to understand what kind of accuracy should I expect from Cassandra 2.1 when increment the counters. - http://www.datastax.com/dev/blog/whats-new-in-cassandra-2-1-a-better-implementation-of-counters The blog post above states that the new counter implementations are "safer" although I'm not sure what that means in practice. Will the counters be 99.99% accurate? How often will they be over or under counted? Thanks, Mike.
