Apache cassandra is an open source nosql distributed database trusted by thousands of companies for scalability and high availability without compromising performance. This initial design implemented a combination of amazon’s dynamo distributed storage and replication techniques and google’s bigtable data and storage engine model. Additional information this section covers how to get started using apache cassandra and should be the first thing to read if you are new to cassandra.
Unmaintained older versions of cassandra are archived here Incremental backups of system tables are also created. The pgp keys used to sign releases are available in this keys file.
If you would like to contribute to this documentation, you are welcome to do so by submitting your contribution like any other patch following these instructions. Here are known cassandra client drivers organized by language Before choosing a driver, you should verify the cassandra version and functionality supported by a specific driver. Since it is a distributed database, cassandra can (and usually does) have multiple nodes
A node represents a single instance of cassandra Once enabled, cassandra creates a hard link to each sstable flushed or streamed locally in a backups/ subdirectory of the keyspace data
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