Apache Cassandra 5.0 LTS on Ubuntu 24.04

## Apache Cassandra 5.0 LTS on Ubuntu 24.04 by cloudimg

Apache Cassandra 5.0 LTS, the latest long-term-support release of the wide-column NoSQL database that powers Netflix, Apple, Instagram, Discord, and thousands of production deployments. Built on Ubuntu 24.04 LTS noble for Microsoft Azure and maintained by cloudimg.

Why Choose cloudimg?

* 24/7 Expert Support with guaranteed 24 hour response. Contact support@cloudimg.co.uk

* Production Ready from Launch Pre-configured, security-patched, validated

* Azure Native Integration Azure Linux Agent, cloud-init, Gen2 Hyper-V, TrustedLaunch

* Per VM Superuser Rotation A fresh 32-char random password is generated for the cassandra superuser at first boot and written to /stage/scripts/cassandra-credentials.log (mode 0600 root only). No two VMs share credentials.

What is Included

* Apache Cassandra 5.0 LTS (latest 5.0.x at build time, 5.0.8) from the official debian.cassandra.apache.org/50x APT suite

* OpenJDK 17 JRE headless (Java 11+ required; 17 recommended)

* PasswordAuthenticator + CassandraAuthorizer + CassandraRoleManager enabled by default

* cassandra-firstboot.service generating per-VM cassandra superuser + cloudimg user passwords, creating the cloudimg keyspace, writing /stage/scripts/cassandra-credentials.log

* Python 3.11 + cassandra-driver venv at /opt/cqlsh-venv (cqlsh requires Python 3.6-3.11; Ubuntu 24.04 ships 3.12)

* CQL native protocol on TCP 9042; JMX bound to localhost:7199 only

* Data dir /var/lib/cassandra (NOT /mnt — Azure ephemeral resource disk does not survive SIG capture)

* Ubuntu 24.04 LTS base with latest security patches

* 24/7 cloudimg support with guaranteed 24 hour response SLA

Cassandra 5.0 LTS Capabilities

* Wide-column data model with tunable consistency (ONE / QUORUM / ALL / LOCAL_QUORUM / etc.)

* Linear horizontal scaling — add nodes to grow capacity, no downtime

* Multi-DC replication via NetworkTopologyStrategy and GossipingPropertyFileSnitch

* SAI (Storage-Attached Index) for secondary index queries — production-ready in 5.0

* Vector data type (5.0 GA) for ANN search workloads — pairs naturally with embedding-based RAG pipelines

* Materialized Views, UDFs, UDAs, change-data-capture (CDC)

* Apache 2.0 licensed; no per-node, per-CPU, or per-GB fees

Recommended Virtual Machine Sizes

* Standard_B2s (2 vCPU, 4 GB RAM) — single-node dev/test

* Standard_D4s_v5 (4 vCPU, 16 GB RAM) — small production cluster nodes

* Standard_E16s_v5 (16 vCPU, 128 GB RAM) — large production with attached Premium SSDs