Step 1: Update Your System

Before installing Cassandra, ensure your system is up to date. Run the following commands:

sudo apt update && sudo apt upgrade -y

Keeping your system updated is crucial for security and performance, whether you're setting it up locally or on a VPS Windows Servers platform.

Step 2: Install Java

Apache Cassandra requires Java. Install OpenJDK by running:

sudo apt install openjdk-11-jdk -y

Verify the Java installation:

java -version

Step 3: Add the Cassandra Repository

Add the Apache Cassandra repository to your system:

echo "deb https://apache.claz.org/cassandra/debian/ 40x main" | sudo tee /etc/apt/sources.list.d/cassandra.sources.list
curl -fsSL https://apache.claz.org/cassandra/KEYS | sudo apt-key add -
            

Step 4: Install Cassandra

Update the package list and install Cassandra:

sudo apt update
sudo apt install cassandra -y

Step 5: Start Cassandra

Start the Cassandra service and enable it to run on boot:

sudo systemctl start cassandra
sudo systemctl enable cassandra

Step 6: Verify Cassandra Installation

You can verify that Cassandra is running by checking its status:

sudo systemctl status cassandra

You should see the service as "active (running)".

Step 7: Access Cassandra Shell

To access the Cassandra Query Language shell (CQLSH), run:

cqlsh

This will connect you to the default keyspace and allow you to run queries.

Step 8: Create a Keyspace

You can create a keyspace by running the following command in CQLSH:

CREATE KEYSPACE my_keyspace WITH REPLICATION = {'class': 'SimpleStrategy', 'replication_factor': 1};

Replace my_keyspace with your desired keyspace name.

Step 9: Create a Table

To create a table within your keyspace, use:

USE my_keyspace;
CREATE TABLE users (id UUID PRIMARY KEY, name text, email text);

Step 10: Insert Data into the Table

To insert data into your table, run:

INSERT INTO users (id, name, email) VALUES (uuid(), 'John Doe', '[email protected]');

Step 11: Query Data from the Table

To query the data you just inserted, use:

SELECT * FROM users;