Events

Monthly online meetups where contributors and users go deep on a single topic. Next up: building KillrVideo 2.0, a video streaming reference platform, on August 26, 2026. Recent sessions have covered cassBrowser, CQLAlchemy for Apache Cassandra® 6.0, AI-assisted operations, memory management, and a practical guide to cluster metadata (CEP-21). Earlier meetups, town halls and contributor meetings are archived on the Meetup group and the Planet Cassandra YouTube channel.

Twenty Apache Cassandra® talks over three days in Glasgow, at the ASF’s flagship conference.

A third-party series, run by AxonOps and not affiliated with the Apache Software Foundation. Webinars and monthly support clinics with Cassandra committers, running since December 2024: misdiagnosing the Cassandra problem, robust application development, backup and restore, Cassandra with Kafka and CEP-44, and AI for Cassandra operations.

A third-party workshop, run by IBM and not affiliated with the Apache Software Foundation; the hands-on exercises use DataStax Astra DB rather than a plain Cassandra download. A hands-on IBM TechXchange workshop in New York, building an application with agentic AI workflows on Cassandra. The series runs regularly in US cities.

Atlanta’s first Cassandra meetup in a good while: an introduction to what is new in Cassandra 5, live demos standing up a cluster with K8ssandra and running a full-stack Cassandra-backed application, and an expert Q&A panel. A hands-on coding workshop ran the same afternoon. Organized by the user group with support from IBM.

The New York metro user group met at the NetApp office in Manhattan, hosted by NetApp Instaclustr together with IBM: NetApp’s role in open source, unleashing AI in Cassandra 5, and designing deterministic Cassandra architectures in the telecom core.

Minneapolis' Cassandra user group gathered at Sisyphus Brewing for three talks: the future of Cassandra-based GenAI with IBM watsonx, Cassandra at Netflix with Chris Lohfink, and ACID transactions with Aaron Ploetz.

Hosted by AWS in Seattle: Apple on streaming Cassandra with native CDC through the Sidecar, Netflix on empowering live events, Uber on first-class materialized views (CEP-48), and Amazon Keyspaces on its commitment to open source.

The first meeting of the New York metro user group: the future of Cassandra-based GenAI with IBM watsonx, ACID transactions with Aaron Ploetz, and Bloomberg’s road to Apache Cassandra 5.0. Organized by the user group with support from IBM.

A full Cassandra track at the ASF’s flagship conference in Minneapolis, Minnesota: twenty-one talks on Accord transactions, mutation tracking, auto repair, witness replicas, storage attached indexes, Analytics 1.0 and the Sidecar, alongside user stories from Netflix, Bloomberg and Capital One. Cassandra was the most mentioned Apache project at the conference.

More than eighty people filled Uber’s Sunnyvale office for six talks from Uber, Apple, Netflix and DataStax: the ecosystem roadmap, intelligent backpressure, client standardization at Uber, CEP-37 auto repair in action, five things about Cassandra 5 you did not know, and an easy guide to getting started as a contributor.

Cassandra sessions in the data storage track in Beijing, China: driver best practices for performance and robustness, Cassandra past, present and future, and a converged database built on Cassandra for agentic AI.

An online afternoon of talks on what comes next for Apache Cassandra, with speakers from across the community. Presented by DataStax.

Over a hundred people turned out on a Friday evening at Netflix for four talks: how Netflix handles tombstones at scale and SLO-based data retrieval, the future of Cassandra repair, vector search in Cassandra 5, and moving petabytes of data securely with Cassandra Analytics and the Sidecar.

The Cassandra track returned to the ASF’s flagship conference, this time in Denver, Colorado, with sessions on new features and improvements, benchmarking and testing, provisioning, and developing with Cassandra.

Cassandra sessions in Hangzhou, China: boosting Cassandra with EloqKV, and integrating the Cassandra Java driver with OpenTelemetry for end-to-end tracing.

Cassandra Summit is back! Let’s meet in San Jose, California, to celebrate what we built together and share what’s coming next. (Please notice the date change.) Produced by the Linux Foundation, co-located with AI.dev.

Join us right on π-Day: you will learn about upcoming features, gain new valuable skills and connect with the Cassandra community in this online celebration of the database we all love! Presented by DataStax.

Join us as we take Cassandra Days to China! Organized by China Golden Bridge.

The third date in the APAC tour for the Cassandra Day team. See you in Singapore! Organized by DataStax.

A special "Cassandra Day" in three US locations (Bellevue, Santa Clara, Houston), with workshops, talks and more …​ and a special surprise for Marvel fans! Organized by DataStax.

The second date in the APAC tour for the Cassandra Day team. See you in Jakarta! Organized by DataStax.

The first date in the APAC tour for the Cassandra Day team. See you in Hanoi! Organized by DataStax.

Third date for the "Cassandra Day" 2022 European tour: a whole day dedicated to everything Cassandra, with talks, workshops and more! Organized by DataStax.

Let’s meet in London for this one-day event all about Cassandra: hands-on workshops, tech talks, fun, networking and more! Organized by DataStax.

The central event for all things Apache this year is New Orleans. With over 160 sessions, this in-person conference delivers the knowledge, connections, and expertise ApacheCon is known for.

Wilkommen! A one-day event for Cassandra enthusiasts and practitioners alike, packed with hands-on workshops, tech talks, fun, networking and more! Organized by DataStax.

A virtual event to bring the Cassandra global community together. Fun, fast-paced talks to keep attendees entertained around the clock.