Apache Cassandra : Starting With Command Line Interface

Starting with Apache Cassandra Command Line Interface

The Command Line Interface (CLI) can be used to interact with Apache Cassandra server and execute something that can be done using client code.

Now, I'll walk you thru some basic operations with Apache Cassandra Command Line Interface (CLI).

Step 1: Start the Apache Cassandra Server by running the "<Cassandra_home>\bin\Cassandra.bat" file.



Step 2: Start the Command Line Interface from the "<Cassandra_home>\bin\cassandra-cli.bat" file.



Step 3: Connect you Cassandra CLI with Cassandra Server.

Command: connect localhost/9160;



Step 4: Displaying existing Keyspaces

Command to display existing Keyspaces: show keyspaces;

Description: It will display all the existing keyspaces in the connected Cassandra server.



Step 5: Creating new keyspace

Command to Create a new keyspace: Create keyspace <keyspacename>;

For example: create keyspace MuraliKeySpace;



Step 6: Use existing keyspace

Command to use an existing keyspace: use <keyspacename>;

For example: use MuraliKeySpace;

Once you have connected to a keyspace, the default@unknown will be changed to:

default@<KeySpaceName>. Now, it is changed to default@MuraliKeySpace.



Step 7: Creating column family

Command to create a column family: create column family <ColumnFamilyName>;

For example: create column family users;