Hey all, So, I'm currently evaluating Cassandra + CQL as a solution for querying a very large data set (think 60+ TB). We'd like to use it to directly power a customer-facing product. My question is threefold :
1) What companies use Cassandra to serve a customer-facing product? I'm not interested in evaluations, experiments, or POC. I'm also not interested in offline BI or analytics. I'm specifically interested in cases where Cassandra serves as the data store for a customer-facing product. 2) Of the companies that use Cassandra to serve a customer-facing product, which ones use it to query data sets of 60TB or more? 3) Of companies use Cassandra to query 60+ TB data sets and serve a customer-facing product, how many employees are required to support their Cassandra installation? In other words, if I were to start a team tomorrow, and their purpose was to maintain a 60+ TB Cassandra installation for a customer-facing product, how many people should I hire? 4) Of companies use Cassandra to query 60+ TB data sets and serve a customer-facing product, what kind of measures do they take for disaster recovery? If you can, please point me to articles, videos, and other materials. Obviously, the larger the company, the better case it will make for Cassandra. Thank you!
