Apache Cassandra Documentation v4.0

Welcome! This is the documentation for Apache Cassandra .

This documentation is currently a work-in-progress and contains a number of TODO sections. Contributions are welcome.

Getting started Newbie friendly starting point	Operating Cassandra The operator's corner
Cassandra Architecture Cassandra's big picture	Cassandra's Tools cqlsh, nodetool, ...
Data Modeling Or how to make square pegs fit round holes	Troubleshooting What to look for when you have a problem
Cassandra Query Language CQL reference documentation	Cassandra Development Learn how to improve Cassandra and contribute patches
FAQs Frequently Asked Questions (with answers!)	Configuration Cassandra's handles and knobs