Apache Cassandra NoSQL Database

This is a repackaged open source software product wherein additional charges apply for cloudimg support services.

## Overview

Apache Cassandra is the open source distributed NoSQL database built for scalability and high availability with no single point of failure. This AMI delivers a fully configured, security-hardened Cassandra node that accepts CQL queries within minutes of launch - eliminating the hours of manual installation, Java configuration, and authentication setup required by a bare install.

## Why This Image Over Alternatives

Unlike many community Cassandra AMIs that ship with authentication disabled and default credentials, this image enforces password authentication and role-based access control from the first boot. Where self-managed installs co-locate database files on the OS disk - complicating backups and risking disk contention - this image isolates all Cassandra data on a dedicated, independently resizable EBS volume. The result is a lean, single-workload instance with predictable latency and straightforward operational management.

## What Is Included

• Apache Cassandra installed from the official Apache package repository, running as a single-node cluster
• Java 17 runtime
• CQL shell (cqlsh) preconfigured for local administration
• Dedicated data volume for commit logs, SSTables, and saved caches
• Password authenticator, Cassandra authorizer, and RBAC enabled by default

## Secure First Boot

On first boot a one-shot service generates a cryptographically strong password for the cassandra superuser, unique to that instance, applies it to the database, and writes it to a file readable only by root. No shared or default database credentials ever exist in the image.

## AWS Integration Points

• Amazon EBS - Cassandra data lives on a dedicated EBS volume; use EBS Snapshots for point-in-time backups or resize storage independently of the OS disk.
• Amazon VPC - Deploy nodes within private subnets and control access with security groups (port 9042 for CQL native transport, port 7000 for inter-node communication).
• Amazon CloudWatch - Forward Cassandra JMX metrics and system logs to CloudWatch for centralized monitoring and alerting.
• AWS Backup - Schedule automated, policy-driven backups of the data volume without custom scripting.

## Ready To Use

Connect over SSH, read the generated superuser password, and open cqlsh to create keyspaces and tables. The node runs as a single-node cluster by default; expand to a multi-node cluster by updating seed addresses and replication settings in cassandra.yaml.

## Use Cases

• IoT and time-series ingestion - Handle millions of sensor writes per second across commodity instances for industrial telemetry or fleet tracking.
• Always-on web and mobile backends - Serve user profiles, session state, and preferences with tunable consistency and no single point of failure.
• Product catalogs and personalization - Store and retrieve large, sparse datasets for e-commerce recommendations at low latency.
• Messaging and activity feeds - Power high-throughput append workloads for social feeds, notifications, and audit logs.

## cloudimg Support

24/7 technical support by email and live chat. Our engineers assist with deployment, cluster expansion, data modeling, performance tuning, and database administration. Critical issues receive a one-hour average response time.

To discuss your architecture or plan a multi-node deployment, contact our team through the support channels listed below.

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