cluster:
- Cluster is a collection of multiple data centers.
Node:
- Cassandra is a distributed database management system designed to handle large amounts of data across many commodity servers.
- Like all other distributed database systems, it provides high availability with no single point of failure.
- Is a machine where Cassandra is running.
keyspace:
- A keyspace in Cassandra is a namespace that defines data replication on nodes.
- A cluster contains one keyspace per node. Given below is the syntax for creating a keyspace using the statement CREATE KEYSPACE.
- It is similar to a database in Relational Database Management System, which is a group of tables, also called column families in Cassandra.
CREATE KEYSPACE <identifier> WITH <properties>
