Keyspace in Cassandra Database

Keyspace is a container for application data, which corresponds to a schema in a relational database. It is used to group column family. Each application in a cluster has only one keyspace.

When you create a keyspace, you can specify a replication_factor to indicate several replicas:

To create a method:

(Method 1: Use the "DATA Modeling" in Opscenter)

You can also use the command line CASSANDRA-CLI:

CREATE keyspace Charles_learn_cassandra with placement_strategy= ' simplestrategy ' and Strategy_options={replication_ Factor:2};

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