Basic concepts for understanding a Cassandra database.
The following concepts are important for understanding Cassandra:
- A group of nodes where you store your data. You can create a single-node cluster.
- The process of storing copies of data on multiple nodes to ensure reliability and fault
tolerance. The number of copies is set by the replication factor.
- A partitioner distributes data evenly across the nodes in the cluster for load
- Data Center
- A group of related nodes configured together within a cluster for replication purposes.
It is not necessarily a physical data center. In DataStax Enterprise, the term related
nodes refers to the type of node: transactional, analytics, search. Each type of
node must be contained in its own data center.
Links to related information in Cassandra