Apache Cassandra is an open source distributed database management system. It is a highly scalable, eventually consistent, distributed, structured key-value store. Cassandra brings together the distributed systems technologies from Dynamo and the data model from Google’s BigTable.
Cassandra is essentially a hybrid between a key-value and a row-oriented (or tabular) database.
Cassandra is in use at Netflix, eBay, Twitter, Urban Airship, Constant Contact, Reddit, Cisco, OpenX, Digg, CloudKick, Ooyala, and more companies.
Key Features
- Provides a structured key-value store with tunable consistency.
- Decentralized.
- Uses the BigTable way of modeling.
- Eventual consistency.
- Automatically replication of data to multiple nodes for fault-tolerance. Replication across multiple data centers is supported. Failed nodes can be replaced with no downtime.
- Gossip protocol.
- Master-master way of serving read and write requests inspired by Amazon’s Dynamo.
- Synchronous or asynchronous replication for each update.
- Supports CQL (Cassandra Query Language), an SQL-alike alternative to the traditional RPC interface.
- Hadoop integration, with MapReduce support. There is support also for Apache Pig and Apache Hive.
Website: cassandra.apache.org
Support:
Developer: The Apache Software Foundation
License: Apache License 2.0
Apache Cassandra is written in Java. Learn Java with our recommended free books and free tutorials.
Related Software
| Key Value Stores | |
|---|---|
| Redis | In-memory data structure store |
| etcd | Distributed reliable key-value store |
| RocksDB | Persistent key-value store for flash and RAM Storage |
| Valkey | High-performance data structure server |
| Apache Cassandra | Distributed database management system |
| ScyllaDB | Real-time big data database |
| Apache Accumulo | Based on Google's BigTable design |
| ArangoDB | Native multi-model database |
| Aerospike CE | Real-time NoSQL database and key-value store |
| BadgerDB | Embeddable key-value database |
| Berkeley DB | Family of open source, embeddable databases |
| TiKV | Distributed transactional key-value database |
| LevelDB | Fast and lightweight key/value database library by Google |
| Garnet | Remote cache-store |
| KeyDB | High performance fork of Redis |
| Redict | Distributed key/value store |
| Kvrocks | Distributed key-value NoSQL database |
| Project Voldemort | Distributed data store |
| Scalaris | Distributed transactional key-value store |
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