Databases

Cassandra is a highly scalable, distributed NoSQL (non-relational) database management system designed for handling large amounts of data across multiple commodity servers.

This article covers key design features of cassandra such as the usage of consistent hashing, the write pattern to a write ahead log and a memtable, the read pattern from the memtable and from sstables, and finally and most important, some examples about data modeling for different types of queries.