Cassandra Community
Connect, Learn, and Contribute with thousands of Cassandra users worldwide!
🌐 Welcome to the Cassandra Community!
Apache Cassandra has a vibrant, welcoming community of users, contributors, and companies!
Why Join the Community?
- 🤝 Get Help: Ask questions and get answers from experts
- 📚 Learn: Access tutorials, webinars, and documentation
- 🚀 Contribute: Improve Cassandra for everyone
- 🌍 Network: Connect with other Cassandra users
- 💼 Career: Find jobs and opportunities
- 📢 Stay Updated: Latest features and best practices
Open Source & Free Forever
Apache Cassandra is 100% open source under the Apache 2.0 license!
No vendor lock-in, no licensing fees, complete transparency.
📚 Community Resources
Where to find information and connect!
Apache Cassandra Slack
The most active community chat!
Join 5,000+ members discussing Cassandra in real-time. Channels for beginners, operations, development, and more.
- #cassandra-users: General questions and help
- #cassandra-dev: Development discussions
- #cassandra-ops: Operations and production
- #beginners: New to Cassandra? Start here!
Mailing Lists
Official Apache Cassandra communication channels
- user@cassandra.apache.org: User questions and discussions
- dev@cassandra.apache.org: Development discussions
- commits@cassandra.apache.org: Code commits
- client-dev@cassandra.apache.org: Driver development
Stack Overflow
25,000+ Cassandra questions answered!
Search existing answers or ask new questions. Tag your questions with [cassandra].
Official Documentation
Comprehensive guides and references
- Getting Started guides
- Architecture documentation
- CQL reference
- Operations guides
- Configuration reference
JIRA Issue Tracker
Report bugs and request features
Track all Cassandra development, report issues, and propose enhancements.
View IssuesGitHub Repository
Source code and contributions
Mirror of the Apache Git repository. Browse code, submit pull requests, and track development.
View on GitHub❓ Getting Help
How to get your questions answered quickly!
DO
- Search existing answers first
- Provide detailed context
- Include error messages
- Share Cassandra version
- Describe what you've tried
- Be patient and respectful
- Follow up with solutions
- Help others when you can
DON'T
- Ask "is anyone there?"
- Post screenshots of text
- Expect instant responses
- Cross-post everywhere
- Share production credentials
- Demand immediate help
- Ignore follow-up questions
- Delete your questions
Great Question Template
Context:
- Cassandra version: 4.1.3
- Cluster size: 6 nodes, RF=3
- Driver: Python 3.25
Problem:
Detailed description of what's happening
Expected: What should happen
Actual: What's actually happening
Error messages: (full stack trace)
What I've tried:
1. First attempt
2. Second attempt
Question: Specific question
📖 Learning Resources
DataStax Academy
Free online courses and certifications!
- Cassandra Fundamentals (DS101)
- Data Modeling (DS220)
- Operations (DS201)
- Cassandra 4 certification
YouTube Channels
Video tutorials and presentations
- Apache Cassandra: Official channel
- DataStax Developers: Tutorials and demos
- Cassandra Summit: Conference talks
Recommended Books
- "Cassandra: The Definitive Guide" by Jeff Carpenter & Eben Hewitt
- "Mastering Apache Cassandra" by Nishant Neeraj
- "Learning Apache Cassandra" by Mat Brown
Blogs & Articles
- Apache Cassandra Blog: Official blog
- The Last Pickle: Consulting firm blog
- DataStax Blog: Company insights
- Medium: Community articles
🤝 How to Contribute
Everyone can contribute to Cassandra!
Code Contributions
- Fix bugs
- Add features
- Improve performance
- Write tests
Start: Pick a "Low Hanging Fruit" ticket in JIRA
Documentation
- Fix typos
- Add examples
- Improve clarity
- Translate docs
Easy entry point for first-time contributors!
Testing
- Test new releases
- Report bugs
- Verify fixes
- Performance testing
Critical for quality releases!
Community Support
- Answer questions
- Write tutorials
- Give presentations
- Mentor newcomers
Help others learn Cassandra!
First Contribution Steps
- Join the dev mailing list
- Introduce yourself on Slack
- Read the contributor guide
- Find a "Low Hanging Fruit" ticket
- Comment on the ticket
- Submit your patch
- Work with reviewers
- Celebrate your first contribution! 🎉
📅 Events & Conferences
Cassandra Summit
The premier Cassandra conference!
Keynotes, technical sessions, workshops, and networking with the global Cassandra community.
- Deep-dive technical talks
- User case studies
- Hands-on workshops
- Contributor meetups
Local Meetups
Connect with local users
Cassandra meetup groups in 50+ cities worldwide. Find one near you or start your own!
- Technical presentations
- Lightning talks
- Q&A sessions
- Networking
Office Hours
Free community office hours
Weekly sessions where community members answer questions and help with problems.
Virtual Webinars
Online learning sessions
Deep dives into specific topics, new feature demos, and best practices.
🚀 Community Projects
Ecosystem tools and projects!
🔧 Management & Monitoring
- Reaper: Automated repair scheduling
- Medusa: Backup and restore
- cstar: Command execution across cluster
- Cassandra Exporter: Prometheus metrics
- tlp-stress: Benchmarking tool
📊 Data Tools
- Spark Cassandra Connector: Analytics integration
- Presto Connector: SQL queries
- Debezium: Change data capture
- sstabletools: SSTable utilities
💻 Drivers & Clients
- DataStax drivers: Java, Python, Node.js, C++, C#
- Gocql: Go driver
- Achilles: Java ORM
- Spring Data Cassandra: Spring integration
💡 Community Tips
Being a Good Community Member
- 🤝 Be respectful: Treat everyone with kindness
- 🙏 Be patient: Volunteers answer questions in their spare time
- 📚 Search first: Many questions are already answered
- ✨ Give back: Help others once you learn
- 📖 Document: Write blog posts about what you learn
- 🎉 Celebrate: Acknowledge contributions from others
- 🌍 Diversity: Welcome people from all backgrounds
Code of Conduct
Apache Cassandra follows the Apache Software Foundation Code of Conduct.
We are committed to providing a welcoming and harassment-free environment for everyone.
- Be respectful and considerate
- Be collaborative and constructive
- Be inclusive and welcoming
- Report any violations to project moderators
🎉 Join the Community Today!
You're now ready to become part of the Cassandra community!
🚀 Next Steps:
- Join Slack: Connect with 5,000+ members
- Subscribe to mailing lists: Stay informed
- Attend a meetup: Meet local users
- Complete a course: DataStax Academy
- Ask a question: Stack Overflow or Slack
- Contribute: Start with documentation
- Share your knowledge: Write a blog post
- Help others: Answer questions
💡 Remember:
- Everyone was a beginner once
- There are no stupid questions
- The community wants to help you succeed
- Your contributions matter, no matter how small
- Together we make Cassandra better!
👥 Welcome to the Cassandra family! 🎉
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