Cassandra storage basics
To manage and access data in Cassandra, it is important to understand how Casssandra stores data. The hinted handoff feature and Cassandra conformance and non-conformance to the ACID (atomic, consistent, isolated, durable) database properties are key concepts in this discussion. In Cassandra, consistency refers to how up-to-date and synchronized a row of data is on all of its replicas.
Client utilities and application programming interfaces (APIs) for developing applications for data storage and retrieval are available.